CN202649536U - Photoelectric emission module - Google Patents
Photoelectric emission module Download PDFInfo
- Publication number
- CN202649536U CN202649536U CN 201220203529 CN201220203529U CN202649536U CN 202649536 U CN202649536 U CN 202649536U CN 201220203529 CN201220203529 CN 201220203529 CN 201220203529 U CN201220203529 U CN 201220203529U CN 202649536 U CN202649536 U CN 202649536U
- Authority
- CN
- China
- Prior art keywords
- wavelength
- beam splitter
- splitter prism
- laser
- polarization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a photoelectric emission module which comprises a polarization beam splitting prism and laser emitters, wherein laser beams with different wavelengths and emitted by a plurality of laser emitters are coupled to a same optical fiber and then are emitted through the polarization beam splitting prism; a sandwich optical component is arranged between at least one laser beam and the polarization beam splitting prism and consists of a filter and two quarter-wave plates; the quarter-wave plates are arranged on the two sides of the filter to form a sandwich structure; the laser beam of which the wavelength is equal to the transmission wavelength of the filter is transmitted through the sandwich optical component, so that the polarization direction is rotated by 90 degrees; and other laser beams with other wavelengths and emitted to the sandwich optical component are transmitted through the quarter-wave plate again after being reflected by the quarter-wave plate and the filter, so that the polarization directions are rotated by 90 degrees. The photoelectric emission module can emit multi-wavelength laser beams in a concentrative way in a relatively small space, so that the manufacturing cost is reduced.
Description
Technical field
The utility model relates to optical field, specially refers to a kind of wavelength-division multiplex photoelectricity transmitter module for the laser beam of a plurality of wavelength being merged transmission.
Background technology
Structure and the principle of work of present division multiplex fibre-optic communication wave system are as follows: transmitting terminal, at first utilize the photoemission module to change into the different wave length signal two or more electric signal, by two or multifiber output; Then utilizing optical multiplexer that the different wave length signal is merged in the same optical fiber transmits; At receiving end, the recycling demodulation multiplexer is separated to two or multifiber with the light signal of various wavelength; Utilize at last photoreceiver that each road signal is changed into respectively electric signal.
In the prior art, the tradition free space optical learns a skill and has the shortcoming of " Z " font light path, namely for effectively transmitting, light path do not blocked, light beam is tiltedly got on each tablet filter with a larger incident angle, size thereby change are large on the one hand, another utility model, and larger incident angle has brought polarization effect, requirement to optical filter is also high, realizes that cost is larger.
The utility model content
The purpose of this utility model is to overcome the deficiency that above-mentioned prior art exists, and a kind of new wavelength-division multiplex photoelectricity transmitter module is provided.Wavelength-division multiplex photoelectricity transmitter module of the present utility model wants to realize the concentrated emission of multiwavelength laser light beam in less space, and the requirement of filter plate is reduced cost.
In order to reach the foregoing invention purpose, the technical scheme that the utility model patent provides is as follows:
A kind of photoemission module, it is characterized in that, this module includes polarization beam splitter prism and generating laser, the outgoing in described polarization beam splitter prism is coupled to same optical fiber of the laser beam of the different wave length that a plurality of generating lasers send, between at least one laser beam and polarization beam splitter prism, be provided with sandwich optical module, described sandwich optical module is comprised of a filter plate and two quarter-wave plates, and described quarter-wave plate is positioned at the both sides of filter plate to form the Layer cake structure; Cross described sandwich optical module with the laser beam transmission of described filter plate transmission peak wavelength and make the polarization direction 90-degree rotation, other wave length laser beams to the outgoing of described sandwich optical module reflect through quarter-wave plate transmission and described filter plate, again make the polarization direction 90-degree rotation through described quarter-wave plate.
Implementation as a kind of 3 passages of the utility model wavelength-division multiplex photoelectricity transmitter module, this module includes a polarization beam splitter prism and three generating lasers, the laser beam wavelength that three described generating lasers send is respectively λ 1, λ 2 and λ 3, wherein wavelength X 1 generating laser is positioned at vertical side of polarization beam splitter prism, the polarization state of wavelength X 1 laser beam is the P attitude, wavelength X 2 generating lasers and wavelength X 3 generating lasers are respectively in the both lateral sides of polarization beam splitter prism relatively to send laser beam, the polarization state of wavelength X 2 laser beams is the P attitude, the polarization state of wavelength X 3 laser beams is the P attitude, in wavelength X 1, be respectively equipped with λ 1 filter plate of corresponding wavelength on the light path of λ 2 and λ 3 laser beams, λ 2 filter plates and λ 3 filter plates, respectively be provided with a quarter-wave plate in the both sides of wavelength X 3 filter plates forming described sandwich optical module, by wavelength X 1 laser beam of polarization beam splitter prism transmission and by the wavelength X 2 of the 90 degree reflections of reflection of polarization face in the polarization beam splitter prism and λ 3 laser beam line focus Lens Coupling to same optical fiber.
Implementation as another kind 3 passages of the utility model wavelength-division multiplex photoelectricity transmitter module, this module includes a polarization beam splitter prism and three generating lasers, the laser beam wavelength that three described generating lasers send is respectively λ 1, λ 2 and λ 3, wherein wavelength X 1 generating laser is positioned at vertical side of polarization beam splitter prism, the polarization state of wavelength X 1 laser beam is P or S attitude, wavelength X 2 generating lasers and wavelength X 3 generating lasers are respectively in the both lateral sides of polarization beam splitter prism relatively to send laser beam, the polarization state of wavelength X 2 laser beams is the S attitude, the polarization state of wavelength X 3 laser beams is the P attitude, in wavelength X 1, be respectively equipped with λ 1 filter plate of corresponding wavelength on the light path of λ 2 and λ 3 laser beams, λ 2 filter plates and λ 3 filter plates, respectively be provided with a quarter-wave plate in the both sides of wavelength X 2 filter plates to form described sandwich optical module, respectively be provided with a quarter-wave plate in the both sides of wavelength X 3 filter plates to form described sandwich optical module, by the wavelength X 1 of polarization beam splitter prism outgoing, λ 2 and λ 3 laser beam line focus Lens Coupling are to same optical fiber.
In the utility model wavelength-division multiplex photoelectricity transmitter module, as a kind of alternative structure, except the horizontal side at described polarization beam splitter prism is provided with sandwich optical module and laser beam, also be provided with the combination of a quarter-wave plate and completely reflecting mirror at the relative horizontal opposite side of polarization beam splitter prism, through quarter-wave plate transmission and the reflection of described completely reflecting mirror, again make the polarization direction 90-degree rotation through described quarter-wave plate to completely reflecting mirror emitting laser light beam.
Implementation as the third 3 passage of the utility model wavelength-division multiplex photoelectricity transmitter module, this module includes two polarization beam splitter prisms and three generating lasers, the laser beam wavelength that three described generating lasers send is respectively λ 1, λ 2 and λ 3, wavelength X 1 generating laser, the first polarization beam splitter prism and the second polarization beam splitter prism are arranged in order along straight line, the polarization state of wavelength X 1 laser beam is P or S attitude, wavelength X 2 generating lasers and wavelength X 3 generating lasers lay respectively at horizontal the same side of the first polarization beam splitter prism and the second polarization beam splitter prism, horizontal opposite side at the first polarization beam splitter prism and the second polarization beam splitter prism respectively is placed with a quarter-wave plate and completely reflecting mirror combination, the polarization state of wavelength X 2 laser beams and wavelength X 3 laser beams is the S attitude, in wavelength X 1, be respectively equipped with λ 1 filter plate of corresponding wavelength on the light path of λ 2 and λ 3 laser beams, λ 2 filter plates and λ 3 filter plates, respectively be provided with a quarter-wave plate in the both sides of wavelength X 2 filter plates to form described sandwich optical module, respectively be provided with a quarter-wave plate in the both sides of wavelength X 3 filter plates to form described sandwich optical module, by the wavelength X 1 of the second polarization beam splitter prism outgoing, λ 2 and λ 3 laser beam line focus Lens Coupling are to same optical fiber.
A kind of multichannel implementation as the utility model wavelength-division multiplex photoelectricity transmitter module, between described polarization beam splitter prism and condenser lens, also be provided with at least one new polarization beam splitter prism, both lateral sides at new polarization beam splitter prism respectively is provided with the new generating laser that sends different wave length laser beams, one of the polarization state of new laser beam that generating laser is sent out is the P attitude, one is the S attitude, two quarter-wave plates that are equipped with the filter plate of respective wavelength and are distributed in the filter plate both sides of respective wavelength between each new generating laser and polarization beam splitter prism, new polarization beam splitter prism emitting laser light beam is coupled in the same optical fiber by condenser lens.
Another kind of multichannel implementation as the utility model wavelength-division multiplex photoelectricity transmitter module, between described the second polarization beam splitter prism and condenser lens, also be provided with at least one new polarization beam splitter prism, a horizontal side of new polarization beam splitter prism is provided with the new generating laser of an emission different wave length laser beams, relative horizontal opposite side is provided with full emission prism, one of the polarization state of new laser beam that generating laser is sent out is the S attitude, two quarter-wave plates that are equipped with the filter plate of respective wavelength and are distributed in the filter plate both sides of respective wavelength between new generating laser and new polarization beam splitter prism are provided with quarter-wave plate between completely reflecting mirror and new polarization beam splitter prism.
Based on technique scheme, wavelength-division multiplex photoelectricity transmitter module of the present utility model compared with prior art has following technological merit:
The utility model learns a skill with free space optical and has realized that in the space of a compactness light with a plurality of generating lasers exports from same optical fiber, and owing to having utilized innovatively the combination of quarter-wave plate and catoptron or optical filter, realize the former road round-trip transmission of light path, thereby can zero degree incident use optical filter.It is large and realize the high shortcoming of cost that this utility model has overcome the learn a skill size of " Z " font light path of traditional free space optical.
Description of drawings
Fig. 1 is the structural representation of embodiment 1 in the utility model photoemission module.
Fig. 2 is the structural representation of embodiment 3 in the utility model photoemission module.
Fig. 3 is the structural representation of embodiment 4 in the utility model photoemission module.
Fig. 4 is the structural representation of embodiment 5 in the utility model photoemission module.
Embodiment
Below we come wavelength-division multiplex photoelectricity transmitter module of the present utility model done further with specific embodiment by reference to the accompanying drawings and elaborate; in the hope of its architectural feature and workflow are described more cheer and brightly, but can not limit protection domain of the present utility model with this.
Photoemission module of the present utility model structurally includes polarization beam splitter prism and generating laser, and overall thought is laser beam outgoing in polarization beam splitter prism is coupled to same optical fiber of different wave length that a plurality of generating lasers are sent.In order to achieve the above object, between at least one laser beam and polarization beam splitter prism, be provided with sandwich optical module, described sandwich optical module is comprised of a filter plate and two quarter-wave plates, and described quarter-wave plate is positioned at the both sides of filter plate to form the Layer cake structure.This Layer cake structure has following features: cross described sandwich optical module with the laser beam transmission of described filter plate transmission peak wavelength and make the polarization direction 90-degree rotation, both the polarization direction 90-degree rotation of the laser beam of P polarization state can have been formed the laser beam of S polarization state, the polarization direction 90-degree rotation of the laser beam of S polarization state can have been formed again the laser beam of P polarization state.And reflect through quarter-wave plate transmission and described filter plate to other wave length laser beams of described sandwich optical module outgoing, again make the polarization direction 90-degree rotation through described quarter-wave plate, equally also can realize P polarization state and S the conversion of polarized state.
As a kind of alternative structure, except the horizontal side at described polarization beam splitter prism is provided with sandwich optical module and laser beam, also be provided with the combination of a quarter-wave plate and completely reflecting mirror at the relative horizontal opposite side of polarization beam splitter prism, through quarter-wave plate transmission and the reflection of described completely reflecting mirror, again make the polarization direction 90-degree rotation through described quarter-wave plate to completely reflecting mirror emitting laser light beam.The combination of completely reflecting mirror and quarter-wave plate can be finished the conversion of polarization state between P and S of any wave length laser beams.
As a characteristic of polarization beam splitter prism, the whole transmissions of its laser beam to the P polarization state, and the laser beam of S polarization state is all reflected, be to penetrate after making the laser beam direction of propagation of the S polarization state of incident rotate 90 degree by its reflection of polarization face.
The utility model is exactly the different settings that utilize the combination of polarization beam splitter prism, sandwich optical module and quarter-wave plate and completely reflecting mirror, realize the laser beam of a plurality of different wave lengths is coupled to in the root optical fiber, to reach manufacturing and designing of new structure type wavelength-division multiplex photoelectricity transmitter module.
Please see Figure 1, as seen from the figure, the present embodiment is 5 passage wavelength division multiplexed lights electricity transmitter module, comprising five generating laser LD, send accordingly respectively the laser beam of five kinds of different wave lengths, λ 1, λ 2, λ 3, λ 4 and λ 5, the polarization state of laser beam is respectively: the laser beam polarization state of wavelength X 1 is the P attitude, the laser beam polarization state of wavelength X 2 is the S attitude, the laser beam polarization state of wavelength X 3 is the P attitude, the laser beam polarization state of wavelength X 4 is the S attitude, and the laser beam polarization state of wavelength X 5 is the P attitude.The polarization state of laser beam is to represent with strigula among the P attitude figure, and the polarization state of laser beam is to represent with black circle among the S attitude figure.In addition, wavelength-division multiplex photoelectricity transmitter module also includes two polarization beam splitter prisms and five filter plates that are directed to respectively wavelength X 1, λ 2, λ 3, λ 4 and λ 5, wherein, be directed in four filter plates of wavelength X 2, λ 3, λ 4 and λ 5, the both sides of each filter plate respectively are provided with a quarter-wave plate, represent with λ/4 among this quarter-wave plate figure.Send the generating laser LD(λ 1 of wavelength X 1), the first polarization beam splitter prism and the second polarization beam splitter prism place successively along straight line.Wherein, send the generating laser LD(λ 2 of wavelength X 2) and send the generating laser LD(λ 3 of wavelength X 3) placing respectively the both lateral sides of the first polarization beam splitter prism, the laser beam that sends relatively is incident in the first polarization beam splitter prism; Send the generating laser LD(λ 4 of wavelength X 4) and send the generating laser LD(λ 5 of wavelength X 5) placing respectively the both lateral sides of the second polarization beam splitter prism, the laser beam that sends relatively is incident in the second polarization beam splitter prism.At last, including wavelength X 1, λ 2, λ 3, λ 4 and λ 5 synthetic laser light beams is coupled in the same optical fiber by condenser lens 6 and exports.
Because polarization beam splitter prism is for the light beam total transmissivity of P polarization state, for the light beam total reflection of S polarization state, the utility model utilizes this principle exactly, and the laser beam of the different wave length that different generating lasers are sent is coupled in the same optical fiber to be exported.In order to access the light beam of single wavelength, we respectively are provided with a filter plate on the light path of each generating laser, its objective is that the light of other wavelength then is reflected back so that the light of respective wavelength can pass through.
In the present embodiment, the laser beam polarization state of wavelength X 1 is the P attitude, and it directly passes wavelength X 1 filter plate, the first polarization beam splitter prism and the second polarization beam splitter prism; And the laser beam polarization state of wavelength X 2 is the S attitude, it at first passes a quarter-wave plate, so that laser beam is converted to circularly polarized light from the S polarized light, and then pass wavelength X 2 filter plates and another quarter-wave plate, become the P polarized light from circularly polarized light and be incident to the first polarization beam splitter prism.The laser beam polarization state of wavelength X 3 is the P attitude, it at first passes a quarter-wave plate, laser beam is converted to circularly polarized light from the P polarized light, and then pass wavelength X 2 filter plates and another quarter-wave plate, its polarization state is converted into the S attitude from circularly polarized light again and is incident to the first polarization beam splitter prism.Because the characteristic of polarization beam splitter prism, be directed to wavelength X 2 and wavelength X 3 laser beams of relative position incident, wavelength X 2 laser beams of P polarization state are from the first polarization beam splitter prism transmission, then make laser beam be converted to circularly polarized light from linearly polarized light through quarter-wave plate, then running into wavelength X 3 filter plates reflects, again make circularly polarized light become linearly polarized light through quarter-wave plate, its polarization state 90-degree rotation become the S attitude, when wavelength X 2 laser beams reach the first polarization beam splitter prism again like this, the same with the polarization state of wavelength X 3 laser beams all is the S attitude, thereby longitudinally exports the second polarization beam splitter prism to behind reflection of polarization face reflection 90 degree by the first polarization beam splitter prism.
The polarization state that is positioned at wavelength X 4 that the generating laser of the second polarization beam splitter prism both lateral sides sends and the wavelength X 5 laser beams respectively polarization state with the wavelength X 2 of the first polarization beam splitter prism both sides and wavelength X 3 laser beams is the same.In its light path the setting of quarter-wave plate and filter plate too, so its can cause equally wavelength X 4 and wavelength X 5 laser beams with the S polarization state from the second polarization beam splitter prism longitudinal output.Since from the wavelength X 2 of the S attitude of the first polarization beam splitter prism outgoing and wavelength X 3 laser beams can through the reflection of wavelength X 4 filter plates with twice through four minutes wave plates so that the polarization state 90-degree rotation becomes the P attitude, again by wavelength X 5 filter plates reflections and twice through four minutes wave plates so that the polarization state 90-degree rotation becomes the S attitude, thereby longitudinally export behind reflection of polarization face reflection 90 degree through the second polarization beam splitter prism.
From the above, having comprised polarization state from the vertical emitting laser light beam of the second polarization beam splitter prism is that wavelength X 1 laser beam of P attitude and the synthetic light beam of λ 2, λ 3, λ 4 and λ 5 laser beams that polarization state is the S attitude are coupled to the same optical fiber by condenser lens and export.
Structure in the present embodiment and light path and embodiment 1 are roughly the same, and difference is, the laser beam polarization state of wavelength X 1 is the S attitude, but not the P attitude.Like this, wavelength X 1 laser beam of S attitude can be longitudinally through the reflection of polarization face reflection of the first polarization beam splitter prism, at first pass a quarter-wave plate, so that linearly polarized light is converted into circularly polarized light, then through after the reflection of wavelength X 2 filter plates through same quarter-wave plate, be converted to linearly polarized light from circularly polarized light again, its polarization state 90-degree rotation becomes the P polarized light and laterally is incident in the first polarization beam splitter prism.Laterally outgoing of edge after the transmission from the first polarization beam splitter prism, at first pass a quarter-wave plate, make linearly polarized light be converted into circularly polarized light, then through after the reflection of wavelength X 3 filter plates through same quarter-wave plate, be converted to linearly polarized light from circularly polarized light again, its polarization state 90-degree rotation becomes the S polarized light and laterally is incident in the first polarization beam splitter prism, and the 90 degree reflections of the reflection of polarization face of the first polarization beam splitter prism are along vertical outgoing of the first polarization beam splitter prism.Same light path walking manner ground through the second polarization beam splitter prism after with the vertical outgoing of S attitude.Like this, in the present embodiment, wavelength X 1, λ 2, λ 3, λ 4 and 5 five laser beams of λ all are coupled in the same optical fiber by condenser lens with the synthetic light beam of S polarization state and export.
As shown in Figure 2, the present embodiment and embodiment 1 are roughly the same, difference is that the laser beam polarization state of wavelength X 2 is the P attitude, this laser beam can see through behind wavelength X 2 filter plates directly into being incident upon in the first polarization beam splitter prism and transmission like this, make polarization converted become the S attitude through quarter-wave plate and the combination of wavelength X 3 filter plates again, be incident to again in the first polarization beam splitter prism through the 90 degree reflections of reflection of polarization face.The reason of doing like this is, because the laser beam polarization state of wavelength X 1 is the P attitude, it directly passes wavelength X 1 filter plate, the first polarization beam splitter prism and the second polarization beam splitter prism.It does not need just can be from the first polarization beam splitter prism transmission through polarization converted, and the laser beam polarization state of wavelength X 3 is to become the S attitude behind P attitude conversion 90 degree, directly by in the first polarization beam splitter prism through the 90 degree reflections of reflection of polarization face.Arrange upward from structure, between the generating laser that sends wavelength X 2 laser beams and the first polarization beam splitter prism, only need to place wavelength X 2 filter plates, and do not need to place quarter-wave plate.
As shown in Figure 3, the present embodiment is a triple channel photoemission module, and it includes a polarization beam splitter prism, three generating lasers, and three generating lasers send respectively the laser beam of three kinds of different wave lengths: λ 1, λ 2 and λ 3 accordingly.Wherein, the laser beam polarization state of wavelength X 1 is P or for the S attitude, the laser beam polarization state of wavelength X 2 is the S attitude, and the laser beam polarization state of wavelength X 3 is the P attitude.Wavelength be two laser beams of λ 2 and λ 3 along the relative incident of the both lateral sides of polarization beam splitter prism, the laser beam of wavelength X 1 is along vertical side incident of polarization beam splitter prism.
Based on same principle of work, if the laser beam polarization state of wavelength X 1 is the P attitude, has comprised polarization state and be wavelength X 1 laser beam of P attitude and λ 2 that polarization state is the S attitude and the synthetic light beam scioptics of λ 3 laser beams and be coupled in the same optical fiber and export.
If the laser beam polarization state of wavelength X 1 is the S attitude, wavelength X 1, λ 2 and λ 3 laser beams all are coupled in the same optical fiber by condenser lens with the synthetic light beam of S polarization state and export.
As shown in Figure 4, the present embodiment is the structure alienation of triple channel photoemission module, includes three generating lasers and two polarization beam splitter prisms on its structure, and the filter plate of three respective wavelength.Three generating lasers send respectively the laser beam of three kinds of different wave lengths: λ 1, λ 2 and λ 3 accordingly.Wherein, the laser beam polarization state of wavelength X 1 is P or for the S attitude, the laser beam polarization state of wavelength X 2 is the S attitude, and the laser beam polarization state of wavelength X 3 is the S attitude.
In the present embodiment, the laser beam polarization state of wavelength X 1 is the P attitude, and it directly passes wavelength X 1 filter plate 1, the first polarization beam splitter prism 4 and the second polarization beam splitter prism 5 successively.Be provided with the generating laser LD(λ 2 of the laser beam of emission wavelength lambda 2 in a horizontal side of the first polarization beam splitter prism 4), its relative horizontal opposite side is provided with a completely reflecting mirror 7.Generating laser LD(λ 2 at the laser beam of emission wavelength lambda 2) and between the first polarization beam splitter prism 4 be provided with a λ 2 filter plates 2, two quarter-wave plate λ/4, between completely reflecting mirror 7 and the first polarization beam splitter prism 4, be provided with quarter-wave plate λ/4.
The laser beam of wavelength X 2 makes the polarization state 90-degree rotation become the P attitude along laterally being incident to the first polarization beam splitter prism 4 through quarter-wave plate, wavelength X 2 filter plates 2, quarter-wave plate successively, by the laser beam of the wavelength X 2 of the first polarization beam splitter prism 4 horizontal opposite side outgoing first through a quarter-wave plate, and then through again passing through quarter-wave plate after completely reflecting mirror 7 reflections, so that becoming the S attitude, its polarization state 90-degree rotation laterally is incident to the first polarization beam splitter prism 4, through being incident to the second polarization beam splitter prism 5 after the 90 degree reflections of reflection of polarization face.
Wavelength is that the laser beam of λ 3 also is to become the P attitude through two quarter-wave plate rear polarizer attitudes, and the laser beam S polarization state of wavelength X 2 is incident to the second polarization spectroscope 5 and reflexes to horizontal outgoing by reflection of polarization face 90 degree, through 3 reflections of wavelength X 3 filter plates, twice process quarter-wave plate is so that the polarization state 90-degree rotation is the P attitude, it is along laterally being incident to the second polarization beam splitter prism 5, by the laser beam of the wavelength X 3 of the second polarization beam splitter prism 5 horizontal opposite side outgoing first through a quarter-wave plate, and then through again passing through quarter-wave plate after completely reflecting mirror 8 reflections, so that becoming the S attitude, its polarization state 90-degree rotation laterally is incident to the second polarization beam splitter prism, through outgoing after the reflection of reflection of polarization face 90 degree, synthesize a branch of laser beam and be coupled in the same optical fiber by condenser lens 6 and export.
Based on same principle of work, if the laser beam polarization state of wavelength X 1 is the S attitude, wavelength X 1, λ 2 and λ 3 laser beams all are coupled in the same optical fiber by condenser lens with the synthetic light beam of S polarization state and export.
Except 5 passages and 3 passages, under the design philosophy of the present utility model, can also increase more polarization beam splitter prism and realize more multichannel laser coupled output.
The utility model is that the different wave length of realizing a plurality of generating lasers in the free space of a compactness is exported from same optical fiber.Its core is to utilize the combination of two quarter-wave plates and filter plate, and perhaps the combination of quarter-wave plate and completely reflecting mirror realizes the round-trip transmission of light path, thereby can zero degree incident use filter plate.
Claims (8)
1. photoemission module, it is characterized in that, this module includes polarization beam splitter prism and generating laser, the outgoing in described polarization beam splitter prism is coupled to same optical fiber of the laser beam of the different wave length that a plurality of generating lasers send, between at least one laser beam and polarization beam splitter prism, be provided with sandwich optical module, described sandwich optical module is comprised of a filter plate and two quarter-wave plates, and described quarter-wave plate is positioned at the both sides of filter plate to form the Layer cake structure.
2. a kind of photoemission module according to claim 1, it is characterized in that, at least one side of the both lateral sides of described polarization beam splitter prism is provided with a sandwich optical module, cross described sandwich optical module with the laser beam transmission of described filter plate transmission peak wavelength and make the polarization direction 90-degree rotation, other wave length laser beams to the outgoing of described sandwich optical module reflect through quarter-wave plate transmission and described filter plate, again make the polarization direction 90-degree rotation through described quarter-wave plate.
3. a kind of photoemission module according to claim 2, it is characterized in that, this module includes a polarization beam splitter prism and three generating lasers, the laser beam wavelength that three described generating lasers send is respectively λ 1, λ 2 and λ 3, wherein wavelength X 1 generating laser is positioned at vertical side of polarization beam splitter prism, the polarization state of wavelength X 1 laser beam is the P attitude, wavelength X 2 generating lasers and wavelength X 3 generating lasers are respectively in the both lateral sides of polarization beam splitter prism relatively to send laser beam, the polarization state of wavelength X 2 laser beams is the P attitude, the polarization state of wavelength X 3 laser beams is the P attitude, in wavelength X 1, be respectively equipped with λ 1 filter plate of corresponding wavelength on the light path of λ 2 and λ 3 laser beams, λ 2 filter plates and λ 3 filter plates, respectively be provided with a quarter-wave plate in the both sides of wavelength X 3 filter plates forming described sandwich optical module, by wavelength X 1 laser beam of polarization beam splitter prism transmission and by the wavelength X 2 of the 90 degree reflections of reflection of polarization face in the polarization beam splitter prism and λ 3 laser beam line focus Lens Coupling to same optical fiber.
4. a kind of photoemission module according to claim 2, it is characterized in that, this module includes a polarization beam splitter prism and three generating lasers, the laser beam wavelength that three described generating lasers send is respectively λ 1, λ 2 and λ 3, wherein wavelength X 1 generating laser is positioned at vertical side of polarization beam splitter prism, the polarization state of wavelength X 1 laser beam is P or S attitude, wavelength X 2 generating lasers and wavelength X 3 generating lasers are respectively in the both lateral sides of polarization beam splitter prism relatively to send laser beam, the polarization state of wavelength X 2 laser beams is the S attitude, the polarization state of wavelength X 3 laser beams is the P attitude, in wavelength X 1, be respectively equipped with λ 1 filter plate of corresponding wavelength on the light path of λ 2 and λ 3 laser beams, λ 2 filter plates and λ 3 filter plates, respectively be provided with a quarter-wave plate in the both sides of wavelength X 2 filter plates to form described sandwich optical module, respectively be provided with a quarter-wave plate in the both sides of wavelength X 3 filter plates to form described sandwich optical module, by the wavelength X 1 of polarization beam splitter prism outgoing, λ 2 and λ 3 laser beam line focus Lens Coupling are to same optical fiber.
5. according to claim 3 or 4 described a kind of photoemission modules, it is characterized in that, between described polarization beam splitter prism and condenser lens, also be provided with at least one new polarization beam splitter prism, both lateral sides at new polarization beam splitter prism respectively is provided with the new generating laser that sends different wave length laser beams, one of the polarization state of new laser beam that generating laser is sent out is the P attitude, one is the S attitude, be equipped with the filter plate of respective wavelength and two quarter-wave plate to form described sandwich optical module between each new generating laser and polarization beam splitter prism, new polarization beam splitter prism emitting laser light beam is coupled in the same optical fiber by condenser lens.
6. a kind of photoemission module according to claim 1, it is characterized in that, horizontal side at described polarization beam splitter prism is provided with sandwich optical module, relative horizontal opposite side is provided with the combination of quarter-wave plate and completely reflecting mirror, cross described sandwich optical module with the laser beam transmission of described filter plate transmission peak wavelength and make the polarization direction 90-degree rotation, through quarter-wave plate transmission and the reflection of described completely reflecting mirror, again make the polarization direction 90-degree rotation through described quarter-wave plate to completely reflecting mirror emitting laser light beam.
7. a kind of photoemission module according to claim 6, it is characterized in that, this module includes two polarization beam splitter prisms and three generating lasers, the laser beam wavelength that three described generating lasers send is respectively λ 1, λ 2 and λ 3, wavelength X 1 generating laser, the first polarization beam splitter prism and the second polarization beam splitter prism are arranged in order along straight line, the polarization state of wavelength X 1 laser beam is P or S attitude, wavelength X 2 generating lasers and wavelength X 3 generating lasers lay respectively at horizontal the same side of the first polarization beam splitter prism and the second polarization beam splitter prism, horizontal opposite side at the first polarization beam splitter prism and the second polarization beam splitter prism respectively is placed with a quarter-wave plate and completely reflecting mirror combination, the polarization state of wavelength X 2 laser beams and wavelength X 3 laser beams is the S attitude, in wavelength X 1, be respectively equipped with λ 1 filter plate of corresponding wavelength on the light path of λ 2 and λ 3 laser beams, λ 2 filter plates and λ 3 filter plates, respectively be provided with a quarter-wave plate in the both sides of wavelength X 2 filter plates to form described sandwich optical module, respectively be provided with a quarter-wave plate in the both sides of wavelength X 3 filter plates to form described sandwich optical module, by the wavelength X 1 of the second polarization beam splitter prism outgoing, λ 2 and λ 3 laser beam line focus Lens Coupling are to same optical fiber.
8. a kind of photoemission module according to claim 7, it is characterized in that, between described the second polarization beam splitter prism and condenser lens, also be provided with at least one new polarization beam splitter prism, a horizontal side of new polarization beam splitter prism is provided with the new generating laser of an emission different wave length laser beams, relative horizontal opposite side is provided with full emission prism, the polarization state of new laser beam that generating laser is sent out is the S attitude, between new generating laser and new polarization beam splitter prism, be equipped with the filter plate of respective wavelength and two quarter-wave plates forming described sandwich optical module, between completely reflecting mirror and new polarization beam splitter prism, be provided with quarter-wave plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220203529 CN202649536U (en) | 2012-05-09 | 2012-05-09 | Photoelectric emission module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220203529 CN202649536U (en) | 2012-05-09 | 2012-05-09 | Photoelectric emission module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202649536U true CN202649536U (en) | 2013-01-02 |
Family
ID=47418624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220203529 Expired - Lifetime CN202649536U (en) | 2012-05-09 | 2012-05-09 | Photoelectric emission module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202649536U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662215A (en) * | 2012-05-09 | 2012-09-12 | 上海波汇通信科技有限公司 | Wavelength division multiplexing photoelectric emission module |
| WO2022100278A1 (en) * | 2020-11-11 | 2022-05-19 | 青岛海信宽带多媒体技术有限公司 | Optical module |
-
2012
- 2012-05-09 CN CN 201220203529 patent/CN202649536U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662215A (en) * | 2012-05-09 | 2012-09-12 | 上海波汇通信科技有限公司 | Wavelength division multiplexing photoelectric emission module |
| CN102662215B (en) * | 2012-05-09 | 2016-05-04 | 上海波汇科技股份有限公司 | A kind of wavelength-division multiplex photoelectricity transmitter module |
| WO2022100278A1 (en) * | 2020-11-11 | 2022-05-19 | 青岛海信宽带多媒体技术有限公司 | Optical module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102662215B (en) | A kind of wavelength-division multiplex photoelectricity transmitter module | |
| JP7169708B2 (en) | Single core bi-directional optical transceiver assembly | |
| CN105717589B (en) | A kind of monochromatic light mouth multidiameter delay light emission component | |
| CN205280985U (en) | Parallel emission of light subassembly of multichannel wavelength | |
| CN104734800A (en) | Optical multiplexer and emitting light device | |
| CN102082610B (en) | Self-injection locking light source and light source self-injection locking method and system | |
| CN103502859A (en) | Multi-channel light-emitting device and methods of manufacture and use thereof | |
| CN104656286A (en) | Miniature identical-wavelength single-core two-way optical transceiver module | |
| CN104570218A (en) | Optical module outputting polarization combined optical beam | |
| CN203422497U (en) | Compact-type wavelength division multiplexing optical structure and light emitting module | |
| CN102012567A (en) | Laser beam coupling output device for high-power semiconductor | |
| CN106646757B (en) | Multiplexer and light combination method thereof | |
| CN208421302U (en) | A kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly | |
| EP2981010B1 (en) | Optical module and optical network system | |
| CN104133273A (en) | Single-fiber bidirectional optical transceiving assembly | |
| CN202649536U (en) | Photoelectric emission module | |
| CN111355533B (en) | VCSEL-based free-space active optical transceiver module | |
| CN108551372B (en) | Multi-wavelength space dislocation divides and closes ripples module | |
| CN102681111A (en) | Wavelength division demultiplexing photoelectric receiving module | |
| CN104460009B (en) | A kind of wave multiplexer | |
| CN204331200U (en) | Miniature co-wavelength uni-core bidirectional optical transceiver module | |
| CN201608423U (en) | Laser and optical transmitter and receiver | |
| CN103117506A (en) | Filtering type wavelength tunable external cavity laser | |
| CN110531469B (en) | Single-fiber bidirectional optical module | |
| CN208506305U (en) | A kind of multi-wavelength multiplex optical module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171025 Address after: 200120 Shanghai city Pudong New Area Branch Road No. 88 west five building room 503 Patentee after: Shanghai Bandweaver Technology Co., Ltd. Address before: 201203, Zhangjiang hi tech park, Shanghai, No. 177 blue wave road, B District, 2 floor Patentee before: Wuxi Bohui Photoelectric Science & Technology Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 103, Building 299, Zhongchen Road, Songjiang District, Shanghai, 20113 Patentee after: Shanghai Bohui Technology Co., Ltd. Address before: Room 503, 5th floor, West Tower, 88 Shangke Road, Pudong New Area, Shanghai, 200120 Patentee before: Shanghai Bandweaver Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |