TW201310101A - Monolithic optical coupling module based on total internal reflection surfaces - Google Patents

Abstract

A low-cost monolithic optical module for splitting one or more input optical beams to two or more output optical beams is provided. The one or more input optical beams are reflected by two or more total internal reflection (TIR) surfaces of the monolithic optical module. A light splitting ratio between the two or more output optical beams is predetermined by one or more physical features of the two or more TIR surfaces.

Description

Monolithic optical coupling module based on total internal reflection surface

This invention relates to an optical device and components thereof, and more particularly to an optical device having a divergent path of light.

When packaged with vertical-cavity surface-emitting lasers (VCSELs), tilted glass mirrors are typically used to partially reflect the emitted light to a detector located next to the VCSEL (monitor) Photodetector, MPD). Please refer to FIG. 1 , which shows a conventional VCSEL assembly including a transistor outline holder, a transistor cover having a light diverging glass, a tube body, and a lens, etc., which make the assembly complicated and expensive. .

U.S. Patent No. 6,888,988 proposes a monomeric all-polymer module as shown in Figure 2 to simplify the packaging process and reduce cost. The function of light divergence is based on the air gap in the polymer. However, since the reflectance of the transverse electric wave and the transverse magnetic wave light is different when the light is reflected through the inclined surface, the divergence rate cannot be easily adjusted.

Therefore, there is a need for an optical device that can easily achieve divergence rate adjustment, simplify assembly procedures, reduce component count, and save assembly costs.

This application is a continuation of the application of US Patent Application No. 13/211,028, filed on August 16, 2011, the disclosure of which is incorporated herein by case. Patent Application No. 13/211,028 claims U.S. Patent Application Serial No. 61/462,334, filed on February 1, 2011 The title of the invention is the priority of the application of "single optical coupling module based on two adjacent total internal reflection surfaces". The above two patent applications will be referred to in this case.

The disclosed embodiment of the present invention allows light divergence rate adjustment to be easily achieved.

According to an embodiment of the present invention, an optical device is provided, which may include a single optical module including a first major surface, a second major surface, a first total internal reflection surface, and adjacent to a second total internal reflection surface of the first total internal reflection surface, the outer surface of the first total internal reflection surface and the outer surface of the second total internal reflection surface are formed on the single optical module a V-shaped recess, the one or more first when one or more first input beams enter the single optical module through the first major surface from a position aligned with the V-shaped recess a first portion of the input beam is reflected by the first total internal reflection surface, and the first beam travels in a first direction as one or more first beams, and may serve as one or more first output beams through the second main The surface leaves the single optical module, and further, the second portion of the one or more first input beams is reflected by the second total internal reflection surface, and the second light beam travels in the second direction as one or more second light beams .

In one embodiment, the beam divergence rate of the single optical module is preset according to at least one physical characteristic of at least one of the first total internal reflection surface and the second total internal reflection surface.

In one embodiment, the at least one physical property comprises an outer shape and a direction of the first total internal reflection surface or the second total internal reflection surface.

In one embodiment, the unitary optical module is comprised of a polymer.

In one embodiment, the optical device may include one or more light sources aligned with the V-shaped recesses, each of the light sources emitting each of the first input beams and entering the first main surface through the first main surface Single optical module. The optical device may include one or more first optical fibers, each of the first optical fibers being configurable, and the one or more first output beams exit the single optical through the second main surface In the module, light is coupled to each of the first output beams. The optical device may include a plurality of first collimating lenses, each of the first collimating lenses being combinable, and when the one or more first input beams enter the single optical module, collimating each The first input beam. The optical device may include a plurality of second collimating lenses, each of the second collimating lens groups, and when the one or more first output beams leave the single optical module, collimating each An output beam.

In one embodiment, the optical device may include a third total internal reflection surface adjacent to the second total internal reflection surface, the second total internal reflection surface being interposed between the first total internal reflection surface and the first Between the three total internal reflection surfaces, the third total internal reflection surface may be configured to reflect the one or more second light beams as one or more second output beams to travel in a third direction. A major surface exits the unitary optical module. The optical device may include one or more first photodetectors, each of the first photodetectors may be configured to exit when the one or more second output beams pass through the first major surface In the case of a single optical module, each of the second output beams is detected. The optical device may further comprise a plurality of third collimating lenses, each of the third collimating lenses being configurable, and collimating when the one or more second output beams exit the single optical module Each of the second output beams.

In an embodiment, the optical device may include a fourth total internal reflection surface between the second total internal reflection surface and the third total internal reflection surface, and the fourth total internal reflection surface may be assembled. Constructing, reflecting a first portion of the one or more second light beams, whereby the first portion of the one or more second light beams travels as a fourth or more third output beam in a fourth direction The first major surface exits the unitary optical module. The optical device may include one or more second optical detectors, each of the second optical detectors being configurable when the one or more third output beams exit the first major surface In the single optical module, each of the third output beams is detected. The optical device may further comprise a plurality of fourth collimating lenses, each of the fourth collimating lenses being configurable, and collimating when the one or more third output beams exit the single optical module Each of the third output beams.

In one embodiment, the optical device may include one or more second optical fibers coupled to the single optical module for inputting one or more second input beams to the single optical component. An optical module, according to which the one or more second input beams enter the single optical module through the second main surface and are reflected by the first total internal reflection surface as one or more The four output beams travel in a fifth direction. The optical device may include one or more photodetectors, each of the photodetectors being configurable, and the one or more fourth output beams exit the single optical mode through the first main surface In the group, each of the fourth output beams is detected. The optical device may further comprise a plurality of fifth collimating lenses, each of the fifth collimating lenses being configurable, and collimating when the one or more second input beams enter the single optical module Each of the second input beams. The optical device may comprise a plurality of sixth collimating lenses, each of the The six collimating lens group is configured to collimate each of the fourth output beams when the one or more fourth output beams exit the single optical module.

According to another aspect of the present invention, an optical device is provided, which can include a single optical module including a first major surface; a second major surface; a first total internal reflection surface; adjacent to the a first total internal reflection surface; a second total internal reflection surface; and a third total internal reflection surface adjacent to the second total internal reflection surface, whereby the second total internal reflection surface is between the first total internal reflection Between the surface and the third total internal reflection surface. The outer surface of the first total internal reflection surface and the outer surface of the second total internal reflection surface form a substantially V-shaped recess on the single optical module. The first portion of the one or more first input beams passes through the one or more first input beams entering the single optical module through the first major surface from a position aligned with the recess of the V-shaped portion Reflecting the first total internal reflection surface as one or more first beams traveling in a first direction and as one or more first output beams, exiting the single optical module through the second major surface . A second portion of the one or more first input beams is reflected through the second total internal reflection surface and travels in a second direction as one or more second beams. The one or more second light beams traveling in the second direction are reflected by the third total internal reflection surface and travel in a third direction, and serve as one or more second output beams through the first main The surface leaves the unitary optical module.

In one embodiment, the beam divergence rate of the single optical module is preset according to at least one physical characteristic of at least one of the first total internal reflection surface and the second total internal reflection surface. The at least one physical property comprises an outer shape and a direction of the first total internal reflection surface or the second total internal reflection surface.

In one embodiment, the unitary optical module is comprised of a polymer.

In one embodiment, the optical device may include one or more light sources aligned with the V-shaped recesses, each of the light sources emitting each of the first input beams and entering the first main surface through the first main surface Single optical module. The optical device may include one or more first optical fibers, each of the first optical fibers being configurable, and the one or more first output beams exit the single optical through the second main surface In the module, light is coupled to each of the first output beams. The optical device may include one or more first photodetectors, each of the first photodetectors may be configured to exit when the one or more second output beams pass through the first major surface In the case of a single optical module, each of the second output beams is detected. The optical device may include a plurality of first collimating lenses, each of the first collimating lenses being combinable, and when the one or more first input beams enter the single optical module, collimating each The first input beam. The optical device may further comprise a plurality of second collimating lenses, each of the second collimating lenses being combinable, and when the one or more first output beams leave the single optical module, collimating each The first output beam. The optical device may further comprise a plurality of third collimating lenses, each of the third collimating lenses being configurable, and collimating when the one or more second output beams exit the single optical module Each of the second output beams.

In an embodiment, the optical device may include a fourth total internal reflection surface between the second total internal reflection surface and the third total internal reflection surface, and the fourth total internal reflection surface may be assembled. Constructing, reflecting a first portion of the one or more second light beams, whereby the first portion of the one or more second light beams travels as a fourth or more third output beam in a fourth direction The first major surface leaves the single optical mode group. The optical device may include one or more second optical detectors, each of the second optical detectors being configurable when the one or more third output beams exit the first major surface In the single optical module, each of the third output beams is detected. The optical device may further comprise a plurality of fourth collimating lenses, each of the fourth collimating lenses being configurable, and collimating when the one or more third output beams exit the single optical module Each of the third output beams.

In one embodiment, the optical device may include one or more second optical fibers coupled to the single optical module for inputting one or more second input beams to the single optical component. An optical module, according to which the one or more second input beams enter the single optical module through the second main surface and are reflected by the first total internal reflection surface as one or more The four output beams travel in a fifth direction. The optical device may include one or more photodetectors, each of the photodetectors being configurable, and the one or more fourth output beams exit the single optical mode through the first main surface In the group, each of the fourth output beams is detected. The optical device may further comprise a plurality of fifth collimating lenses, each of the fifth collimating lenses being configurable, and collimating when the one or more second input beams enter the single optical module Each of the second input beams. The optical device may further comprise a plurality of sixth collimating lenses, each of the sixth collimating lenses being configurable, and collimating when the one or more fourth output beams exit the single optical module Each of the fourth output beams.

According to another aspect of the present invention, there is provided an optical device comprising a single optical module comprising a first major surface; a second major surface; a first total internal reflection surface; and a second internal Reflective surface. When one or more first input lights When the beam enters the single optical module through the first main surface from a position aligned with the first total internal reflection surface, the one or more first input beams are reflected through the first total internal reflection surface as One or more first beams travel in a first direction. A first portion of the one or more first beams is reflected by the second total internal reflection surface and travels in a second direction and acts as one or more first output beams exiting the first major surface Single optical module. The second portion of the one or more first beams is not reflected by the second total internal reflection surface and remains in a first direction and acts as one or more second output beams through the second main The surface leaves the unitary optical module.

In one embodiment, the beam divergence rate of the single optical module is preset according to at least one physical characteristic of the second total internal reflection surface.

In one embodiment, the at least one physical property comprises an outer shape and a direction of the second total internal reflection surface.

In one embodiment, the unitary optical module is comprised of a polymer.

In one embodiment, the optical device may include one or more light sources aligned to the first total internal reflection surface, each of the light sources emitting each of the first input beams and passing through the first major surface Enter the single optical module. The optical device may further comprise one or more first photodetectors, each of the first photodetectors being configurable, when the one or more first output beams exit the first main surface In the single optical module, each of the first output beams is detected. The optical device may include one or more first optical fibers, each of the first optical fibers being configurable, and the one or more second output beams exit the single optical through the second main surface In the module, light is coupled to each of the second output beams. The optical device may include a plurality of first collimations The lens, each of the first collimating lenses may be configured to collimate the first input beam when the one or more first input beams enter the single optical module. The optical device may further comprise a plurality of second collimating lenses, each of the second collimating lenses being combinable, and when the one or more first output beams leave the single optical module, collimating each The first output beam. The optical device may further comprise a plurality of third collimating lenses, each of the third collimating lenses being configurable, and collimating when the one or more second output beams exit the single optical module Each of the second output beams.

In one embodiment, the optical device may include a third total internal reflection surface adjacent to the second total internal reflection surface. The optical device may include one or more second optical fibers coupled to the single optical module for inputting one or more second input beams to the single optical module. The one or more second input beams enter the single optical module through the second major surface and are reflected by the third total internal reflection surface as one or more third output beams to be third Directions. The optical device may include one or more photodetectors, each of the photodetectors being configurable, and the one or more third output beams exit the single optical mode through the first main surface In the group, each of the third output beams is detected. The optical device may further comprise a plurality of fourth collimating lenses, each of the fourth collimating lenses being configurable, and collimating when the one or more second input beams enter the single optical module Each of the second input beams. The optical device may further comprise a plurality of fifth collimating lenses, each of the fifth collimating lenses being configurable, and collimating when the one or more third output beams exit the single optical module Each of the third output beams.

The features, implementations and advantages of the invention described above or elsewhere will be The following is a description of the figure. It is to be understood that the foregoing general description of the claims

Overview:

The present invention provides an optical device comprising a single optical module. Part of the light is emitted from a source such as a VCSEL, reflected through two or more total internal reflection surfaces, and coupled to the fiber. At least another portion of the light emitted from the source is reflected to the photodetector. The divergence rate of light between the conduction to the optical fiber and the conduction to the optical detector is preset to meet a specific requirement according to physical characteristics, which may be, for example, the shape of two or more total internal reflection surfaces and / or direction. Since the light reflectance on the two or more total reflection surfaces can be 100%, the light divergence ratio between the two or more total internal reflection surfaces is insensitive to light polarization. With this design, the light energy emitted from the light source is diverged to two or more photodetectors.

The single optical module provided by the present invention can be injection molded and can be a full polymer. Depending on the combination of the two or more total internal reflection surfaces described above, light steering and light divergence of the design can be achieved without the need for additional components. Accordingly, this design helps reduce component count, simplify package complexity, and save manufacturing costs.

Moreover, in accordance with the present invention, any adjusted light divergence rate can be designed and implemented in a single module. The method of using the air gap divergence light to face the problem of Polarization Dependent Loss (PDL) when the light divergence rate is greater than 20%. In order to use the optical module at a light divergence ratio greater than 20%, it must be advantageous The output light is dropped with a rough output surface or other means. In contrast, embodiments of the present invention can achieve an arbitrarily adjusted optical divergence rate that is insensitive to polarization.

Example:

Figure 3 is a cross-sectional view showing an optical device 10 in accordance with one embodiment of the present invention.

The optical device 10 includes a single optical module 100, a first total internal reflection surface 110, a second total internal reflection surface 120 adjacent to the first total internal reflection surface 110, and adjacent or second to the second total internal reflection surface. The third total internal reflection surface 130 of 120. The second total internal reflection surface 120 is disposed between the first total internal reflection surface 110 and the third total internal reflection surface 130. Other surfaces or structures may be disposed between the first total internal reflection surface 110 and the third total internal reflection surface 130 as long as they do not block the light beam. A first inner beam divergence interface 125 is formed between the interface of the first total internal reflection surface 110 and the second total internal reflection surface 120. As shown in FIG. 3, the outer surface of the first total internal reflection surface 110 and the outer surface of the second total internal reflection surface 120 form a substantially V-shaped recess on the single optical module 100.

The single optical module 100 further includes a first aperture 140, a second aperture 150, and a third aperture 160.

The first aperture 140 is aligned with the first inner beam divergence interface 125. The first light beam 182 enters the single optical module 100 through the first aperture 140 and is incident on the first inner beam divergence interface 125. The partial light beam is reflected by the first total internal reflection surface 110 as the second light beam 184. A direction travels while a portion of the beam is reflected through the second total internal reflection surface 120 as a third beam 186 traveling in a second direction. Second direction It is roughly opposite to the first direction.

The second aperture 150 is aligned with the first total internal reflection surface 110, whereby the second beam 184 exits the single optical module 100 through the second aperture 150.

The third aperture 160 is aligned with the third total internal reflection surface 130, and at least a portion of the third beam 186 is reflected by the third total internal reflection surface 130 as a fourth beam 188 traveling in a third direction. The fourth beam 188 exits the single optical module 100 through the third aperture 160.

In an embodiment, the optical module 10 can include a light source 180 aligned with the first aperture 140. The light source 180 can emit a first light beam 182 that enters the single optical module 100 through the first aperture 140. Light source 180 can be, for example, a VCSEL, a light emitting diode (LED), a laser diode, or the like.

In another embodiment, the optical device 10 can include an optical fiber 190 coupled to the second aperture 150, whereby the second light beam 184 exiting the single optical module 100 through the second aperture 150 can be coupled to the optical fiber 190. .

In yet another embodiment, the optical device 10 further includes a first photodetector 170 that is aligned with the third aperture 160. The first photodetector 170 detects the fourth beam 188 when the fourth beam 188 enters the single optical module 100 through the third aperture 160.

The beam divergence rate of the monolithic optical module 100 may be preset according to at least one physical property, which may be, for example, the shape of at least one of the first total internal reflection surface 110 and the second total internal reflection surface 120 and/or Or direction.

In one embodiment, the unitary optical module 100 can be composed of a polymer. In other words, the single optical module 100 can be an all-polymer monolithic optical module.

In an embodiment, the optical device 10 further includes a first collimating lens 145 coupled to the first aperture 140 for collimating through the first aperture 140 into or out of the single optical module 100. a second collimating lens 155 coupled to the second aperture 150 for collimating the light beam entering or exiting the single optical module 100 through the second aperture 150; a third collimating lens 165 coupled to The third aperture 160 is configured to collimate through the third aperture 160 into or out of the beam of the single optical module 100.

In the embodiment shown in FIG. 3, light source 180 emits a first beam 182. The first light beam 182 enters the single optical module 100 through the first aperture 140, is collimated by the first collimating lens 145, and is incident on the first inner beam divergent interface 125. Accordingly, the first beam 182 diverges into a second beam 184 traveling in a first direction and a third beam 186 traveling in a second direction, the second direction being substantially opposite the first direction. The third light beam 186 is incident on the third total internal reflection surface 130, whereby the third light beam 186 is turned by an angle and then travels in a third direction, and then exits the single optical module 100 through the third aperture 160, and the collimating lens 165 is utilized. The third beam 186 of the single optical module 100 is collimated and detected by the photodetector 170. The second beam 184 exiting the single optical module 100 through the second aperture 150 is collimated through the second collimating lens 155 and coupled to the optical fiber 190.

Figure 4 is a cross-sectional view showing an optical device 20 in accordance with another embodiment of the present invention.

The optical module 20 includes a single optical module 200 that includes a first total internal reflection surface 210 and a second total internal reflection surface 220. The first beam 272 is incident on the first total internal reflection surface 210 and travels as a second beam 274 in a first direction, whereby a first portion of the second beam 274 passes through the second total internal reflection surface 220 The reflection, as the third beam 276, travels in a second direction, while the second portion of the second beam 274 is not reflected through the second total internal reflection surface 220, maintaining the first direction as the fourth beam 278.

In one embodiment, the unitary optical module 200 includes a surface 230 next to the second total internal reflection surface 220, and the second total internal reflection surface 220 is located between the first total internal reflection surface 210 and the surface 230. In some embodiments, surface 230 can be a total internal reflection surface, while in other embodiments, surface 230 can also be a non-total internal reflection surface. Other surfaces or structures may be disposed between the first total internal reflection surface and the second total internal reflection surface as long as the surface or structure does not block the beam.

The beam divergence rate of the unitary optical module 200 can be preset according to at least one physical characteristic of at least one of the at least second total internal reflection surface 220 and the surface 230.

In one embodiment, the single optical module 200 further includes a first aperture 240, a second aperture 250, and a third aperture 260. When the first light beam 272 enters the single optical module 200 through the first aperture 240, it is incident on the first total internal reflection surface 210. The third beam 276 exits the single optical module 200 through the second aperture 250. The fourth beam 278 exits the single optical module 200 through the third aperture 260.

In an embodiment, the optical device 20 may include a light source 270 that is aligned with the first aperture 240. The light source 270 can emit a first light beam 272 that enters the single optical module 200 through the first aperture 240. Light source 270 can be, for example, a VCSEL, a light emitting diode, a laser diode, or the like.

In another embodiment, the optical device 20 can include a photodetector 280 that is aligned with the second aperture 250. When the third light beam 276 leaves the single optical module through the second aperture 250 At 200 o'clock, the photodetector 280 can detect the third beam 276.

In yet another embodiment, the optical device 20 can include an optical fiber 290 coupled to the third aperture 260, whereby the fourth beam 278 exiting the single optical module 200 through the third aperture 260 is coupled to the optical fiber 290.

In one embodiment, the optical device 20 may include a first collimating lens 245, a second collimating lens 255, and a third collimating lens 265. The first collimating lens 245 collimates the first beam 272 before the first beam 272 enters the unitary optical module 200 through the first aperture 240. After the third beam 276 exits the single optical module 200 through the second aperture 250, the second collimating lens 255 collimates the third beam 276. After the fourth beam 278 exits the single optical module 200, the third collimating lens 265 collimates the fourth beam 278 before coupling with the fiber 290.

In one embodiment, the unitary optical module 200 can be composed of a polymer. In other words, the single optical module 200 can be an all-polymer monolithic optical module.

Fig. 5 is a cross-sectional view showing an optical device 30 according to still another embodiment of the present invention.

The optical device 30 includes a single optical module 300 including a first total internal reflection surface 310, a second total internal reflection surface 320 adjacent to the first total internal reflection surface 310, and adjacent or successive The third total internal reflection surface 330 of the second total internal reflection surface 320. The second total internal reflection surface 320 is disposed between the first total internal reflection surface 310 and the third total internal reflection surface 330. The interface between the second total internal reflection surface 320 of the first total internal reflection surface 310 forms a first inner beam divergence interface 325. As shown in FIG. 5, the outer surface of the first total internal reflection surface 310 and the outer surface of the second total internal reflection surface 320 form a substantially V-shaped recess on the single optical module 300.

The single optical module 300 further includes a first aperture 356, a second aperture 358, and a third aperture 354.

The first aperture 356 is aligned with the first inner beam divergence interface 325. The first light beam 380 enters the single optical module 300 through the first aperture 356 and is incident on the first inner beam divergence interface 325. The partial light beam is reflected by the first total internal reflection surface 310 as the second light beam 382. A direction travels while a portion of the beam is reflected through the second total internal reflection surface 320 as a third beam 384 traveling in a second direction. The second direction is substantially opposite the first direction.

The second aperture 358 is aligned with the first total internal reflection surface 310, whereby the second beam 382 exits the single optical module 300 through the second aperture 358.

The third aperture 354 is aligned with the third total internal reflection surface 330. The third beam 384 can be at least partially reflected through the third total internal reflection surface 330 to travel as a fourth beam 386 in a third direction. The fourth beam 386 can exit the single optical module 300 through the third stop 354.

As shown in FIG. 5, the single optical module 300 may include a fourth total internal reflection surface 340 and a fourth aperture 352 aligned with the fourth total internal reflection surface 340. Portions of the third beam 384 travel in a second direction and are not reflected by the third total internal reflection surface 330, while maintaining a second direction as the fifth beam 388. The fifth beam 388 is reflective through the fourth total internal reflection surface 340 and travels as a sixth beam 389 in a fourth direction. The sixth beam 389 can exit the single optical module 300 through the fourth aperture 352.

In one embodiment, the optical device 30 can include a light source 376 that is aligned with the first aperture 356. Light source 376 can emit a first light beam 380, and first light beam 380 passes through the first light The crucible 356 enters the unitary optical module 300. Light source 376 can be, for example, a VCSEL, a light emitting diode, a laser diode, or the like.

In another embodiment, the optical device 30 can include an optical fiber 390 coupled to the second aperture 358, whereby the second beam 382 exits the single optical module 300 through the second aperture 358 and can be coupled to the optical fiber. 390.

In yet another embodiment, the optical device 30 can include a first photodetector 374 that is aligned with the third aperture 354. When the fourth beam 386 exits the single optical module 300 through the third aperture 354, the first detector 374 can detect the fourth beam 386.

In still another embodiment, the optical device 30 can include a second photodetector 372 that is aligned with the fourth aperture 352. When the sixth light beam 389 exits the single optical module 300 through the fourth aperture 352, the second light detector 372 can detect the sixth light beam 389.

The beam divergence rate of the monolithic optical module 300 can be preset according to at least one physical property, such as the first total internal reflection surface 310, the second total internal reflection surface 320, and the third total internal reflection surface 330. The shape and/or orientation of at least one of them.

In one embodiment, the unitary optical module 300 can be composed of a polymer. In other words, the single optical module 300 can be an all-polymer monolithic optical module.

In one embodiment, the optical device 30 can include a first collimating lens 366 coupled to the first aperture 356 for collimating through the first aperture 356 into or out of the single optical module 300. a second collimating lens 368 coupled to the second aperture 358 for collimating through the second aperture 358 into or out of the beam of the unitary optical module 300; a third collimating lens 364 coupled to the Three light 354, through the collimation The third aperture 354 enters or leaves the light beam of the single optical module 300; the fourth collimating lens 362 is coupled to the fourth aperture 352 to collimate through the fourth aperture 352 into or out of the single optical module. 300 beam.

In the embodiment illustrated in FIG. 5, light source 376 emits a first beam 380. After collimating through the first collimating lens 366, the first beam 380 enters the single optical module 300 through the first aperture 356 and is incident on the first inner beam diverging interface 325. Next, the first beam 380 diverges into a second beam 382 traveling in a first direction and a third beam 384 traveling in a second direction, the second direction being substantially opposite the first direction. The first portion of the third beam 384 is incident on the third total internal reflection surface 330, whereby the third beam 384 is turned at an angle and then travels as a fourth beam 386 in a third direction, and then exits the single lens through the third aperture 354. The module 300 is collimated from the fourth beam 386 of the single optical module 300 by the third collimating lens 364 and detected by the first photodetector 374. The second portion of the third beam 384 is not reflected through the third total internal reflection surface 330, and continues to travel in the second direction as the fifth beam 388 until it is incident on the fourth total internal reflection surface 340. Through the reflection of the fourth total internal reflection surface 340, the reflected fifth beam 388 travels as the sixth beam 389 in the fourth direction, and then exits the single optical module 300 through the fourth aperture 352, and utilizes the fourth standard. The straight lens 362 is collimated away from the sixth beam 389 of the single optical module 300 and detected by the second photodetector 372. The second beam 382 exits the single optical module 300 through the second aperture 358 and is then collimated away from the second beam 382 of the single optical module 300 by the second collimating lens 368 and coupled to the optical fiber 190.

Figure 6 shows a perspective view of an optical device 10 in accordance with one embodiment of the present invention. First 7 is a perspective view showing an optical device 15 according to another embodiment of the present invention, and the optical device 15 of FIG. 7 may be a modified embodiment of the optical device 10 of FIG. 6, which may have a total internal reflection surface of a different shape. The outer surface and the beam divergence interface between the two adjacent total internal reflection surfaces including a plurality of beam paths replace the linear path shown in FIG. Figures 6 and 7 show two typical structures for forming a three-dimensional structure of a single optical module, and the adjustment of the light divergence rate can be realized in the two-light divergence architecture.

As previously described in conjunction with Figures 3 through 5, the beam is reflected through one or more total internal reflection surfaces in the unitary optical module and eventually diverges to the fiber and one or more of the detectors. The square divergence between the fiber and the one or more detectors can be designed based on physical characteristics, such as the shape and/or orientation of the total internal reflection surface. Since the light reflectance at the total internal reflection surface is 100%, the light divergence ratio between the total internal reflection surfaces is completely insensitive to light polarization. With this design, the light emitted from the light source can be diverged to one or more of the detectors. In Figure 5, the light from the source diverges into the two detectors. If the band filter is added between a collimating lens and a corresponding photodetector, the wavelength shift can be monitored.

A single optical module having multiple optical channels and providing more than one optical signal transmission can be assembled in accordance with the architecture shown in Figures 3 through 5. For example, Figure 8 shows a perspective view of a multi-channel optical module in accordance with one embodiment of the present invention. The multi-channel optical module is based on the optical divergence architecture of the single-channel optical module 100 shown in FIG. The multi-channel optical module includes the advantages described below to simply place a plurality of single-channel optical modules together. First, by reducing the type and number of optical modules Can significantly reduce manufacturing costs. Second, packaging costs can be reduced by a simplified packaging process. In multi-channel optical modules, there is no need to calibrate, add-resin, UV-curing or thermally cure each component. Finally, multi-channel optical modules can be packaged in smaller sizes.

FIG. 9 is a perspective view of a single optical module according to an embodiment of the present invention, which can transmit optical signals to a first optical fiber having an optical power monitoring function, and simultaneously receive optical signals through a second optical fiber. The optical divergence architecture shown in Figures 3 through 5 can be used to transmit optical signals to the first optical fiber. For example, in FIG. 9, the optical module 100 shown in FIG. 7 can be used to transmit optical signals to the first optical fiber. As shown in Figure 9, a light source such as a VCSEL, a Fabry-Perot (FP) laser, or an LED emits light to the bottom lens of the optical module, and part of the light is reflected through the first total internal reflection surface. Re-coupling to the first fiber, the other portion of the light is reflected by the second total internal reflection surface and travels to the third total internal reflection surface, and then reflected through the third total internal reflection surface to the low speed detector located below the optical module. To receive the optical signal, the input optical signal from the second optical fiber is coupled to the optical module, and the optical signal is then reflected through the first total internal reflection surface to the high speed optical detector located below the optical module. High-speed photodetectors convert optical signals into high-speed electrical signals to receive messages. With the optical module shown in FIG. 9, only one optical module is needed to receive the optical signal and simultaneously transmit another optical signal having the optical power detecting function. The package of the optical module is simpler and easier to manufacture and is smaller than the two-phase single-channel optical module. According to this, the cost can be greatly reduced.

The optical coupling architecture shown in Figure 9 can be extended to a single optical module to provide more than one optical signal and simultaneously receive more than one optical signal. Figure 10 A stereoscopic view for displaying the single optical module.

Although some of the embodiments are disclosed above, they are not intended to limit the scope of the invention. Modifications and variations of the above-described embodiments can be made without departing from the spirit and scope of the invention. Therefore, the scope of protection of this creation should be as listed in the scope of the patent application described later.

10‧‧‧Optical device

15‧‧‧Optical device

100‧‧‧Single optical module

110‧‧‧First total internal reflection surface

120‧‧‧Second total internal reflection surface

125‧‧‧First inner beam divergence interface

130‧‧‧ Third total internal reflection surface

140‧‧‧First light

145‧‧‧First collimating lens

150‧‧‧Second light

155‧‧‧Second collimating lens

160‧‧‧third light

165‧‧‧3rd collimating lens

170‧‧‧First Detector

180‧‧‧Light source

182‧‧‧First beam

184‧‧‧second beam

186‧‧‧ Third beam

188‧‧‧fourth beam

190‧‧‧ fiber

20‧‧‧Optical module

200‧‧‧Single optical module

210‧‧‧First total internal reflection surface

220‧‧‧Second total internal reflection surface

225‧‧‧First inner beam divergence interface

230‧‧‧ surface

240‧‧‧First light

245‧‧‧First collimating lens

250‧‧‧Second light

255‧‧‧Second collimating lens

260‧‧‧third light

265‧‧‧ third collimating lens

270‧‧‧Light source

272‧‧‧First beam

274‧‧‧second beam

276‧‧‧ Third beam

278‧‧‧fourth beam

280‧‧ ‧ Detector

290‧‧‧ fiber optic

30‧‧‧Optical device

300‧‧‧Single optical module

310‧‧‧First total internal reflection surface

320‧‧‧Second total internal reflection surface

325‧‧‧First inner beam divergence interface

330‧‧‧ Third total internal reflection surface

340‧‧‧fourth total internal reflection surface

352‧‧‧Fourth light

354‧‧‧third light

356‧‧‧First light

358‧‧‧Second light

362‧‧‧4th collimating lens

364‧‧‧3rd collimating lens

366‧‧‧First collimating lens

368‧‧‧Second collimating lens

372‧‧‧Second Detector

374‧‧‧First Detector

376‧‧‧Light source

380‧‧‧First beam

382‧‧‧second beam

384‧‧‧ Third beam

386‧‧‧fourth beam

388‧‧‧ fifth beam

390‧‧‧ fiber optic

The drawings, which are incorporated in the specification, are intended to provide a The drawings are intended to illustrate embodiments of the invention and to explain the principles of the invention.

1 is a cross-sectional view showing a conventional VCSEL assembly; FIG. 2 is a cross-sectional view showing another conventional VCSEL assembly; FIG. 3 is a cross-sectional view showing an optical device according to an embodiment of the present invention; FIG. 5 is a cross-sectional view showing an optical device according to still another embodiment of the present invention; FIG. 6 is a perspective view showing an optical device according to an embodiment of the present invention; A perspective view of an optical device according to another embodiment of the present invention; FIG. 8 is a perspective view showing a multi-channel optical device according to an embodiment of the present invention; and FIG. 9 is a view showing a two-channel optical device according to another embodiment of the present invention. A perspective view; and a tenth view showing a perspective view of a multi-channel optical device in accordance with another embodiment of the present invention.

10‧‧‧Optical device

100‧‧‧Single optical module

110‧‧‧First total internal reflection surface

120‧‧‧Second total internal reflection surface

125‧‧‧First inner beam divergence interface

130‧‧‧ Third total internal reflection surface

140‧‧‧First light

145‧‧‧First collimating lens

150‧‧‧Second light

155‧‧‧Second collimating lens

160‧‧‧third light

165‧‧‧3rd collimating lens

170‧‧‧First Detector

180‧‧‧Light source

182‧‧‧First beam

184‧‧‧second beam

186‧‧‧ Third beam

188‧‧‧fourth beam

190‧‧‧ fiber

Claims (20)

An optical device comprising: a single optical module comprising: a first major surface; a second major surface; a first total internal reflection surface; and a second total internal reflection surface adjacent to the first total internal reflection surface The outer surface of the first total internal reflection surface and the outer surface of the second total internal reflection surface form a substantially V-shaped recess on the single optical module, wherein the first total internal reflection surface and the a second total internal reflection surface, and the first major surface and the second major surface group are configured to pass through the first major surface when one or more first input beams pass from a position aligned with the V-shaped recess In the single optical module, the first portion of the one or more first input beams is reflected by the first total internal reflection surface, and the first light beam travels in the first direction as one or more first beams. Or more first output beams exit the single optical module through the second main surface, and the second portion of the one or more first input beams are reflected through the second total internal reflection surface as a Or more of the second beam travels in the second direction. The optical device of claim 1, wherein the beam divergence rate of the single optical module is based on at least one physical of at least one of the first total internal reflection surface and the second total internal reflection surface. Features are preset. The optical device of claim 2, wherein the at least one physical property comprises an outer shape and a direction of the first total internal reflection surface or the second total internal reflection surface. The optical device of claim 1, wherein the single optical module is composed of a polymer. The optical device of claim 1, further comprising: aligning one or more light sources of the V-shaped recess, each of the light sources emitting each of the first input beams and passing through the first major surface Entering the single optical module; one or more first optical fibers, each of the first optical fiber groups, when the one or more first output beams exit the single optical mode through the second main surface And a plurality of first collimating lenses, each of the first collimating lens groups, when the one or more first input beams enter the single optical module Aligning each of the first input beams; and a plurality of second collimating lenses, each of the second collimating lens groups, when the one or more first output beams exit the single optical module Straight to each of the first output beams. The optical device of claim 1, further comprising: a third total internal reflection surface adjacent to the second total internal reflection surface, the second total internal reflection surface being interposed between the first total internal reflection surface and Between the third total internal reflection surfaces, the third total internal reflection surface group is formed to reflect the one or more a second beam that travels in a third direction as one or more second output beams, exiting the single optical module through the first major surface; one or more first optical detectors, each of the a first detector group configured to detect each of the second output beams when the one or more second output beams exit the single optical module through the first major surface; and a plurality of third collimating lenses Each of the third collimating lens groups is configured to collimate each of the second output beams when the one or more second output beams exit the single optical module. The optical device of claim 6, comprising: a fourth total internal reflection surface between the second total internal reflection surface and the third total internal reflection surface, the fourth total internal reflection surface Composed to reflect a first portion of the one or more second beams, whereby the first portion of the one or more second beams travels in a fourth direction as one or more third output beams, Leaving the single optical module through the first major surface; one or more second optical detectors, each of the second optical detector groups, when the one or more third output beams pass the first Detecting each of the third output beams when a main surface leaves the single optical module; and a plurality of fourth collimating lenses, each of the fourth collimating lens groups, when the one or more third outputs Each of the third output beams is collimated as the beam exits the single optical module. The optical device of claim 1, further comprising: one or more second optical fibers coupled to the single optical module for Inputting one or more second input beams to the single optical module, wherein the one or more second input beams enter the single optical module through the second major surface and pass through the first a total internal reflection surface reflection as one or more fourth output beams traveling in a fifth direction; one or more photodetectors, each of the photodetector groups, when the one or more Detecting each of the fourth output beams when the four output beams exit the single optical module through the first major surface; and forming a plurality of fifth collimating lenses, each of the fifth collimating lens groups, when the one or more When the second input beam enters the single optical module, collimating each of the second input beams; and a plurality of sixth collimating lenses, each of the sixth collimating lens groups, when the one or more When the fourth output beam leaves the single optical module, the fourth output beam is collimated. An optical device comprising: a single optical module comprising: a first major surface; a second major surface; a first total internal reflection surface; and a second total internal reflection surface adjacent to the first total internal reflection surface, The outer surface of the first total internal reflection surface and the outer surface of the second total internal reflection surface form a substantially V-shaped recess on the single optical module; a third total internal reflection surface adjacent to the second total internal reflection surface, whereby the second total internal reflection surface is interposed between the first total internal reflection surface and the third total internal reflection surface, wherein The first total internal reflection surface, the second total internal reflection surface, the third total internal reflection surface, and the first main surface and the second main surface group, when one or more first input beams When entering the single optical module through the first main surface from a position aligned with the concave portion of the V-shaped portion, the first portion of the one or more first input light beams is reflected through the first total internal reflection surface as One or more first beams travel in a first direction and serve as one or more first output beams, exiting the single optical module through the second major surface, the one or more first inputs A second portion of the beam is reflected by the second total internal reflection surface, traveling as one or more second beams in a second direction, and wherein the one or more second beams traveling in the second direction are transmitted The third total internal reflection surface reflects and travels in the third direction, and One or more second output beams exit the unitary optical module through the first major surface. The optical device of claim 9, wherein the beam divergence rate of the single optical module is based on at least one physical property of at least one of the first total internal reflection surface and the second total internal reflection surface. It is set that the at least one physical characteristic comprises an outer shape and a direction of the first total internal reflection surface or the second total internal reflection surface. The optical device of claim 9, wherein the unitary optical module is composed of a polymer. The optical device of claim 9, comprising: aligning one or more light sources of the V-shaped recess, each of the light sources emitting each of the first input beams and entering the first main surface through the first main surface a single optical module; one or more first optical fibers, each of the first optical fiber groups, when the one or more first output beams exit the single optical module through the second major surface Optically coupled to each of the first output beams; one or more first optical detectors, each of the first optical detector groups configured to pass the one or more second output beams through the first major surface Detecting each of the second output beams when leaving the single optical module; a plurality of first collimating lenses, each of the first collimating lens groups, when the one or more first input beams enter the single a body optical module that collimates each of the first input beams; a plurality of second collimating lenses, each of the second collimating lens groups, when the one or more first output beams exit the single optical mode Grouping, collimating each of the first output beams; and a plurality of third collimating lenses Each of the third collimating lens group consisting of, when the one or more monomers second output beam exits the optical module, each of the second collimated output beam. The optical device of claim 9, comprising: a fourth total internal reflection surface between the second total internal reflection surface and the third total internal reflection surface, the fourth total internal reflection surface group Reflection Or a first portion of the second light beam, whereby the first portion of the one or more second light beams travels in a fourth direction as one or more third output beams, through the first major surface Leaving the single optical module; one or more second optical detectors, each of the second optical detector groups, when the one or more third output beams exit the single through the first major surface The body optical module detects each of the third output beams; and a plurality of fourth collimating lenses, each of the fourth collimating lens groups, when the one or more third output beams exit the single optics In the module, the third output beam is collimated. An optical device according to claim 9 further comprising: one or more second optical fibers coupled to the single optical module for inputting one or more second input beams to the single An optical module, according to which the one or more second input beams enter the single optical module through the second main surface and are reflected by the first total internal reflection surface as one or more The four output beams travel in a fifth direction; one or more detectors, each of the detector groups being configured to exit the single optical mode as the one or more fourth output beams pass the first major surface Grouping, detecting each of the fourth output beams; a plurality of fifth collimating lenses, each of the fifth collimating lens groups, when the one or more second input beams enter the single optical module Compensating each of the second input beams; and a plurality of sixth collimating lenses, each of the sixth collimating lens groups, The fourth output beam is collimated when the one or more fourth output beams exit the single optical module. An optical device comprising: a single optical module comprising: a first major surface; a second major surface; a first total internal reflection surface; and a second total internal reflection surface, wherein the first total internal reflection surface a second total internal reflection surface, and the first major surface and the second major surface group, when one or more first input beams pass through the first major surface from a position aligned with the first total internal reflection surface When entering the single optical module, the one or more first input beams are reflected by the first total internal reflection surface, and the first light beam travels in a first direction as one or more first light beams, wherein the one or a first portion of the first first beam is reflected by the second total internal reflection surface and travels in a second direction and acts as one or more first output beams through which the single optical exits a module, and wherein the second portion of the one or more first beams is not reflected by the second total internal reflection surface and remains in a first direction and serves as one or more second output beams Leaving the monomer through the second major surface Learning modules. An optical device according to claim 15 wherein the single optical mode The set beam divergence rate is predetermined based on at least one physical property of the second total internal reflection surface. The optical device of claim 15, wherein the at least one physical property comprises an outer shape and a direction of the second total internal reflection surface. The optical device of claim 15, wherein the unitary optical module is composed of a polymer. The optical device of claim 15 further comprising: aligning one or more light sources of the first total internal reflection surface, each of the light sources emitting each of the first input beams and passing through the first major surface Entering the single optical module; one or more first optical detectors, each of the first optical detector groups, when the one or more first output beams exit the single through the first major surface The body optical module detects each of the first output beams; one or more first fibers, each of the first fiber groups, when the one or more second output beams pass through the second major surface When leaving the single optical module, light is coupled to each of the second output beams; a plurality of first collimating lenses, each of the first collimating lens groups, when the one or more first input beams enter The single optical module collimates each of the first input beams; a plurality of second collimating lenses, each of the second collimating lens groups, when the one or more first output beams exit the cell An optical module that collimates each of the first output beams; A plurality of third collimating lenses, each of the third collimating lens groups, collimating the second output beams when the one or more second output beams exit the single optical module. An optical device according to claim 15 further comprising: a third total internal reflection surface adjacent to the second total internal reflection surface; and one or more second optical fibers coupled to the single optical mode a group for inputting one or more second input beams to the single optical module, whereby the one or more second input beams enter the single optical module through the second major surface, And reflecting through the third total internal reflection surface as one or more third output beams traveling in a third direction; one or more photodetectors, each of the photodetector groups, when the one or Detecting each of the third output beams when a plurality of third output beams exit the single optical module through the first main surface; and forming a plurality of fourth collimating lenses, each of the fourth collimating lens groups When the one or more second input beams enter the single optical module, collimate each of the second input beams; and a plurality of fifth collimating lenses, each of the fifth collimating lens groups, when Collimation when one or more third output beams exit the single optical module The third output beam.