CN203301489U - Light emitting device possessing multipath wavelength channels, light receiving element possessing multipath wavelength channels and optical module - Google Patents

Light emitting device possessing multipath wavelength channels, light receiving element possessing multipath wavelength channels and optical module Download PDF

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Publication number
CN203301489U
CN203301489U CN2013203976191U CN201320397619U CN203301489U CN 203301489 U CN203301489 U CN 203301489U CN 2013203976191 U CN2013203976191 U CN 2013203976191U CN 201320397619 U CN201320397619 U CN 201320397619U CN 203301489 U CN203301489 U CN 203301489U
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light
film filtering
filtering slice
lens
laser
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CN2013203976191U
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Chinese (zh)
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陈思乡
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青岛海信宽带多媒体技术有限公司
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Abstract

The utility model discloses a light emitting device possessing multipath wavelength channels, a light receiving element possessing multipath wavelength channels and an optical module. The light emitting device possessing the multipath wavelength channels is equipped with a laser assembly, a laser collimating lens assembly, an integrated film filter plate module and a focusing coupling lens, and the light receiving element possessing the multipath wavelength channels is equipped with a collimating lens, an integrated film filter plate module, a focusing coupling lens assembly and a photoelectric detector assembly. According to the utility model, an integrated WDM module is used to substitute a conventional split WDM diaphragm to gather the N light beams of different wavelengths emitted by N lasers or separate the light signals containing various wavelengths and accessed in a fiber, so that the multichannel transmission requirement of signals can be satisfied, the change of the relative positions among diaphragms is limited and reduced, the light path is stabilized, and the insertion loss caused by the change of the light path along with environments can be reduced effectively. In addition, the light beam displacement prisms are introduced in the devices, so that the input/output light paths can be located in the centers of the devices, and accordingly, the light path offset problem is solved, and the package of the devices becomes simpler and more convenient.

Description

Light emitting devices, light receiving element and optical module with multichannel wavelength channel

Technical field

The utility model belongs to the optical communication system technical field, specifically, relates to a kind of light receiving element for reception or utilizing emitted light signal and light emitting devices and light and receives/send out integrated module.

Background technology

In the high-speed data communication field, for emission rate require more than 40Gbps, receiving velocity requires the Networks of Fiber Communications more than 100Gbps, can grow the distance High-speed transmission in order to ensure data, its solution that generally adopts is that the light signal multiplex/demultiplex of 4 road different wave lengths is transmitted in monomode fiber.Like this, the signal rate of each wavelength channel only need reach 10/25Gbps(be emission rate more than 10Gbps, receiving velocity is more than 25Gbps), can meet the signal transmission rate of 40/100Gbps.Light signal at a 40/100Gbps receives/send out module, both included light emitting devices (or claiming assembly) TOSA of such 4 road wavelength, and also include light receiving element (or claiming assembly) ROSA of such 4 road wavelength simultaneously.

At present, the light receipts/hair device part (TOSA/ROSA) that has four road wavelength channels mainly adopts two kinds of designs:

A kind of design that is based on Planar Lightwave Circuit Technology (PLC), namely adopt the lightwave signal of four wavelength of array waveguide grating (AWG) multiplex/demultiplex of PLC type, forms TOSA/ROSA; Perhaps adopt the lightwave signal of multiplexing four wavelength of fiber optic combiner Combiner of PLC type, form TOSA.The shortcoming of this design is: array waveguide grating AWG has larger loss and poor temperature stability, and passband width is narrower; Fiber optic combiner Combiner has larger physics loss, thereby easily causes the power output of light signal to reduce.

Another kind is based on the design of film filtering slice technology (WDM), usually adopts structural design scheme as shown in Figure 1 and Figure 2.Wherein, Fig. 1 is the structural design scheme of light emitting devices TOSA, mainly comprise substrate 170, focus on coupled lens 110, speculum 120, WDM assembly 130(comprise 4 wavelength diaphragms 1301,1302,1303,1304 at described WDM assembly 130, is respectively used to the lightwave signal of 4 kinds of wavelength of transmission), the parts such as collimating lens assembly 140 and laser assembly 150.Wherein, be provided with 4 lasers 1501,1502,1503,1504 in laser assembly 150, be respectively used to launch the laser beam of four kinds of different wave lengths.The laser beam that is sent by laser assembly 150 enters WDM assembly 130 via lens 140 collimations, and by speculum 120 reflections, pools a light beam, after scioptics 110 focus on, is coupled into optical fiber.

for light receiving element ROSA, shown in Figure 2, input beam from optical fiber enters WDM assembly 130 by collimating lens 180, and by after speculum 120 Multi reflections, inject respectively 4 wavelength diaphragms 1301 of WDM assembly 130, 1302, 1303, in 1304, and then via 4 wavelength diaphragms 1301, 1302, 1303, 1304 are separated into the light beam of 4 road different wave lengths, focus on respectively four PD photoelectric detectors 1601 in PD assembly 160 by focus lens assembly 190, 1602, 1603, on 1604, by PD photoelectric detector 1601, 1602, 1603, 1604 convert four road light signals to the four road signals of telecommunication, realize the reception of data.Above-mentioned all parts is fixed on the substrate 170 of light receiving element ROSA.

Based on the design of WDM technology, its shortcoming is: the center of input and output BEAM SQUINT light receipts/hair device part, thus make troubles for the assembling of device.In addition, because WDM assembly 130 adopts discrete WDM diaphragms, design, the relative position of itself and speculum 120 easily changes with the change of temperature and environmental condition, and then makes the performance of light receipts/hair device part become unreliable.

Summary of the invention

The utility model, in order to improve the performance of optical device, has at first proposed a kind of light emitting devices with multichannel wavelength channel that adopts integrated WDM modular design, so that the transmission path of light beam is more stable, reliable.

For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:

A kind of light emitting devices with multichannel wavelength channel, comprise laser assembly, laser alignment lens subassembly, integrated film filtering slice module and focus on coupled lens; Be provided with N laser in described laser assembly, be provided with N laser alignment lens in described laser alignment lens subassembly, be provided with a vitreum in described film filtering slice module, be provided with N the logical film filtering slice of band and a reflection diaphragm on described vitreum, described N the logical film filtering slice laying adjacent with the laser alignment lens of band, described reflection diaphragm and the adjacent laying of focusing coupled lens; The laser beam of the N road different wave length by the emission of N laser is injected described N via N laser alignment lens correspondence respectively and is with and leads to film filtering slice, and by reflection diaphragm, reflect and pool a branch of light beam, after focusing on coupled lens focusing, be coupled in optical fiber.

Further, described N logical film filtering slice of band has the incident ray transmission of specific wavelength and to the characteristic of the incident ray reflection of its commplementary wave length, and the light beam of the logical film filtering slice transmission different wave length of each band, the interval of N wavelength meets the regulation of the ITU of International Telecommunications Union to Coarse Wavelength Division Multiplexing and dense wave division multipurpose.

For the encapsulation operation that makes light emitting devices becomes more simple and convenient, also be provided with the pattern displacement prism between described focusing coupled lens and optical fiber, inject the pattern displacement prism by the light beam that focuses on coupled lens output, change the position of the transmission path of light beam to the light emitting devices installing optical fibres by the pattern displacement prism, light beam is impinged perpendicularly in optical fiber.

Preferably, described pattern displacement prism is a glass prism, is coated with antireflective coating on the plane of incidence of described glass prism and exit facet, and relative two side end faces of glass prism form total internal reflection surface.

Copy above-mentioned design philosophy, the utility model has also proposed a kind of light receiving element with multichannel wavelength channel that adopts integrated WDM modular design, comprises the photoelectric detector assembly, focuses on coupled lens assembly, integrated film filtering slice module and collimating lens; Be provided with N photoelectric detector in described photoelectric detector assembly, be provided with N and focus on coupled lens in described focusing coupled lens assembly, be provided with a vitreum in described film filtering slice module, be provided with N the logical film filtering slice of band and a reflection diaphragm on described vitreum, described N band leads to film filtering slice and focuses on the adjacent laying of coupled lens, the adjacent laying of described reflection diaphragm and collimating lens; Inject the film filtering slice module by the light signal that optical fiber is inputted via collimating lens, the light signal that is divided into N road different wave length by the film filtering slice module, inciding correspondingly N focuses in coupled lens, be coupled into respectively N photoelectric detector by focusing on coupled lens, and conversion generates the signal of telecommunication.

Further, described N logical film filtering slice of band has the incident ray transmission of specific wavelength and to the characteristic of the incident ray reflection of its commplementary wave length, and the light beam of the logical film filtering slice transmission different wave length of each band, the interval of N wavelength meets the regulation of ITU to Coarse Wavelength Division Multiplexing and dense wave division multipurpose.

In order further to simplify the encapsulation operation of light receiving element, also be provided with the pattern displacement prism between described optical fiber and collimating lens, the light signal of inputting by optical fiber changes the installation site of the transmission path of light signal to collimating lens via the pattern displacement prism, makes light signal vertical incidence collimating lens.

Preferably, described pattern displacement prism is a glass prism, is coated with antireflective coating on the plane of incidence of described glass prism and exit facet, and relative two side end faces of glass prism form total internal reflection surface.

Based on above-mentioned light emitting devices and light receiving element, the utility model has also proposed a kind of optical module, and namely integrated module is received/sent out to light, comprises light emitting devices and light receiving element; Wherein,

Be provided with laser assembly, laser alignment lens subassembly, integrated film filtering slice module and focus on coupled lens in described light emitting devices; Be provided with N laser in described laser assembly, be provided with N laser alignment lens in described laser alignment lens subassembly, be provided with a vitreum in described film filtering slice module, be provided with N the logical film filtering slice of band and a reflection diaphragm on described vitreum, described N the logical film filtering slice laying adjacent with the laser alignment lens of band, described reflection diaphragm and the adjacent laying of focusing coupled lens; The laser beam of the N road different wave length by the emission of N laser is injected described N via N laser alignment lens correspondence respectively and is with and leads to film filtering slice, and by reflection diaphragm, reflect and pool a branch of light beam, after focusing on coupled lens focusing, be coupled in optical fiber;

Be provided with the photoelectric detector assembly in described light receiving element, focus on coupled lens assembly, integrated film filtering slice module and collimating lens; Be provided with N photoelectric detector in described photoelectric detector assembly, be provided with N and focus on coupled lens in described focusing coupled lens assembly, be provided with a vitreum in described film filtering slice module, be provided with N the logical film filtering slice of band and a reflection diaphragm on described vitreum, described N band leads to film filtering slice and focuses on the adjacent laying of coupled lens, the adjacent laying of described reflection diaphragm and collimating lens; Inject the film filtering slice module by the light signal that optical fiber is inputted via collimating lens, the light signal that is divided into N road different wave length by the film filtering slice module, inciding correspondingly N focuses in coupled lens, be coupled into respectively N photoelectric detector by focusing on coupled lens, and conversion generates the signal of telecommunication.

Preferably, described N equals 4, namely forms the light with 4 road wavelength channels and receives/send out integrated module.

Compared with prior art, advantage of the present utility model and good effect are:

1, the utility model adopts integrated WDM module to replace the discrete WDM diaphragm design light receipts/hair device part of tradition, not only limit and reduced the change of relative position between diaphragm, stablize light path, and can effectively reduce the insertion loss that causes with environmental change due to light path;

2, the introducing of pattern displacement prism, make the I/O light path can be positioned at the center of light receipts/hair device part, so not only effectively utilized space, make the encapsulation volume of device diminish, and solved the offset problem of light path, make device package become more simple and convenient;

3, compare with traditional PLC technical scheme,, because the loss ratio PLC of WDM diaphragm is much smaller, therefore adopt integrated WDM module can reduce optical path loss, improve the optical output power of light receipts/hair device part.

Description of drawings

, in order to be illustrated more clearly in the technical scheme in the utility model embodiment, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described.Apparently, the accompanying drawing in the following describes is only embodiment more of the present utility model,, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the existing light channel structure schematic diagram that adopts the light emitting devices of WDM technology design;

Fig. 2 is the existing light channel structure schematic diagram that adopts the light receiving element of WDM technology design;

Fig. 3 is the light channel structure schematic diagram of the first embodiment of the light emitting devices that proposes of the utility model;

Fig. 4 is the light channel structure schematic diagram of the first embodiment of the light receiving element that proposes of the utility model;

Fig. 5 is the light channel structure schematic diagram of the second embodiment of the light emitting devices that proposes of the utility model;

Fig. 6 is the light channel structure schematic diagram of the second embodiment of the light receiving element that proposes of the utility model;

Fig. 7 is the light channel structure schematic diagram of the third embodiment of the light emitting devices that proposes of the utility model;

Fig. 8 is the light channel structure schematic diagram of the third embodiment of the light receiving element that proposes of the utility model;

Fig. 9 is the light channel structure schematic diagram of the 4th kind of embodiment of the light emitting devices that proposes of the utility model;

Figure 10 is the light channel structure schematic diagram of the 4th kind of embodiment of the light receiving element that proposes of the utility model.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, described embodiment is only a part of embodiment in the utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making all other embodiment that obtain under the creative work prerequisite, all belong to the scope of the utility model protection.

, for the advantage that makes technical solutions of the utility model is clearer, below in conjunction with drawings and Examples, the utility model is explained.

The present embodiment is in order to solve traditional light receipts/hair device part owing to adopting discrete WDM diaphragm to design, and the relative position between WDM diaphragm and speculum easily changes with the change of temperature and environmental condition, and then cause the insecure problem of performance of light receipts/hair device part, a kind of light emitting devices and light receiving element that adopts integrated WDM modular design proposed, to improve stability and the reliability in beam Propagation path.

Respectively the concrete assembling structure of described light emitting devices and light receiving element is at length set forth below by a specific embodiment.

At first, introduce the concrete assembling structure of light emitting devices, shown in Figure 3, mainly comprise the parts such as laser assembly 350, laser alignment lens subassembly 340, integrated film filtering slice module (being the WDM module) 330 and focusing coupled lens 320.Wherein, be provided with N laser in described laser assembly 350, the present embodiment describes as an example of N=4 example, namely be provided with 4 road wavelength channels in described light emitting devices, send the laser beam of 4 road different wave lengths by 4 lasers 3501,3502,3503,3504, inject in laser alignment lens subassembly 340.For the laser beam that each laser 3501,3502,3503,3504 the is sent processing that collimates, the present embodiment is provided with the laser alignment lens with the laser same number in described laser alignment lens subassembly 340, be also namely N, still as an example of N=4 example, describe.The laser beam correspondence that various lasers is sent is injected different laser alignment lens, after by 4 laser alignment lens, the laser beam of 4 road different wave lengths being collimated and processes, injects film filtering slice module 330.

The film filtering slice module 330 of the present embodiment is the integral type structure, comprises a vitreum 3301, the logical 3302 and reflection diaphragms 3303 of film filtering slice (TFF diaphragm) of a N band, and is shown in Figure 3.The number of described TFF diaphragm 3302 is identical with the number of laser, still as an example of N=4 example, describes.In the present embodiment, described 4 TFF diaphragms 3302 all have the incident ray transmission of specific wavelength and to the characteristic of the incident ray of its commplementary wave length reflection, the light beam of each TFF diaphragm 3302 transmission different wave length, for example distinguish the light beam of transmission 1271nn, 1291nm, 1311nm, four kinds of wavelength of 1331nm, and the interval between each wavelength should meet the regulation of International Telecommunication Union to Coarse Wavelength Division Multiplexing and dense wave division multipurpose.

Be coated with respectively antireflective coating on the plane of incidence of vitreum 3301 and exit facet, described TFF diaphragm 3302 is laid in position adjacent with laser alignment lens subassembly 340 on vitreum 3301, shown in Figure 3, reflection diaphragm 3303 is laid in position adjacent with focusing coupled lens 320 on vitreum 3301.Described reflection diaphragm 3303 is a kind of speculums that are coated with highly reflecting films in appointed area.

Laser beam by 4 lasers 3501,3502,3503, the 3504 4 road different wave lengths of launching, incide in 4 TFF diaphragms 3302 via 4 laser alignment collimated respectively, 3302 pairs, each TFF diaphragm wherein a kind of light beam of wavelength carries out transmission, and the light beam of its commplementary wave length is reflected.Be transmitted to the light beam of 4 road different wave lengths in vitreum 3301 by 4 TFF diaphragms 3302, after reflection diaphragm 3303 reflections, pool a branch of light beam, directive focuses on coupled lens 320, after focusing on coupled lens 320 focusing, be coupled in optical fiber, complete the TOSA function.

Installation site due to optical fiber on light emitting devices is generally the centre position that is positioned at device, for the light beam that sends by 320 focusing of focusing coupled lens is impinged perpendicularly in optical fiber, the present embodiment also is provided with pattern displacement prism 310 in light emitting devices, shown in Figure 3, be used for changing the transmission path of light beam, make vertical coupled the entering in optical fiber of light beam of by focusing on coupled lens 320, sending, to improve the light through-put power of device.

In the present embodiment, described pattern displacement prism 310 is preferred adopts a glass prism to make, be coated with respectively antireflective coating on the plane of incidence of described glass prism and exit facet, relative two side end faces of glass prism (for example two side end faces, up and down) are carried out polishing,, to form total internal reflection surface, realize the change to the incident beam transmission path.

In order to facilitate the fixing of each parts, also be provided with substrate 170 in described light emitting devices, as shown in Figure 3, above-mentioned laser assembly 350, laser alignment lens subassembly 340, film filtering slice module 330, focusing coupled lens 320 and pattern displacement prism 310 all are installed on described substrate 170.

Next, introduce the concrete assembling structure of light receiving element, shown in Figure 4, mainly comprise photoelectric detector assembly 360, focus on the parts such as coupled lens assembly 345, integrated film filtering slice module 330 and collimating lens 325.In order to improve receiving velocity, the present embodiment is provided with N photoelectric detector in described photoelectric detector assembly 360, the present embodiment still describes as an example of N=4 example, namely be provided with 4 road wavelength channels in described light receiving element, receive respectively the light signal of 4 road different wave lengths by 4 photoelectric detectors 3601,3602,3603,3604, and then convert the 4 road signals of telecommunication to, realize the high speed of data is received.

Being provided with the focusing coupled lens with the photoelectric detector same number in described focusing coupled lens assembly 345, is also namely N, still as an example of N=4 example, describes.Film filtering slice module 330 is arranged on and focuses between coupled lens assembly 345 and collimating lens 325, described film filtering slice module 330 is identical with the film filtering slice modular structure in Fig. 3, and N the logical film filtering slice 3302 of band is laid in position adjacent with focusing coupled lens assembly 345 on vitreum 3301, reflection diaphragm 3303 is laid in position adjacent with collimating lens 325 on vitreum 3301, and is shown in Figure 4.

The light signal (light signal that contains 4 wavelength) of inputting by optical fiber via collimating lens 325 collimations after, inject in film filtering slice module 330.Described light signal is first TFF diaphragm of directive at first, the light beam consistent with the transmission peak wavelength of first TFF diaphragm for the light signal medium wavelength transmits by first TFF diaphragm, directive focuses on first focusing coupled lens in coupled lens assembly 345, the beam reflection of its commplementary wave length to the reflecting surface of reflection diaphragm 3303, and then reflexes on second TFF diaphragm by reflection diaphragm 3303.Described second TFF diaphragm carries out transmission to the light signal medium wavelength light beam consistent with the transmission peak wavelength of second TFF diaphragm, directive focuses on second focusing coupled lens in coupled lens assembly 345, the beam reflection of its commplementary wave length to reflection diaphragm 3303, and then reflexes on the 3rd TFF diaphragm by reflection diaphragm 3303.By that analogy, include the light signal of 4 wavelength under the transmission and reflex of four TFF diaphragms 3302 and reflection diaphragm 3303, be separated into the light beam of 4 road different wave lengths, by four TFF diaphragms 3302 respectively transmission export four to and focus on coupled lens, and then after focusing on coupled lens focusing via 4, correspondence is coupled into 4 photoelectric detectors 3601 ~ 3604, to convert the 4 road signals of telecommunication to, transfer to the circuit board of rear class, just completed thus the ROSA function.

Same,, in order to dwindle the volume of light receiving element, solve the offset problem of light path, make device package become more simple and convenient, the present embodiment also is provided with pattern displacement prism 310 in described light receiving element, as shown in Figure 4.The structure of the pattern displacement prism in the structure of described pattern displacement prism 310 and Fig. 3 is identical, be laid between optical fiber and collimating lens 325, the light signal of inputting by optical fiber transmits along the center of light receiving element, after via pattern displacement prism 310, its transmission path being changed, the installation site of directive collimating lens 325, and then light signal can be impinged perpendicularly in collimating lens 325, to improve the through-put power of light signal.

Be provided with equally substrate 170 in described light receiving element, as shown in Figure 4, be used for fixing above-mentioned photoelectric detector assembly 360, focusing coupled lens assembly 345, integrated film filtering slice module 330, collimating lens 325 and pattern displacement prism 310.

Fig. 5, Fig. 7 and Fig. 9 illustrate respectively other three kinds of light emitting devicess based on integrated film filtering slice modular design, light channel structure and above-mentioned light emitting devices shown in Figure 3 are identical, difference only is on the relative position of reflection diaphragm and TFF diaphragm in the film filtering slice module, that is: the reflection diaphragm in Fig. 5 4303 all is arranged on vitreum 4301 by position in the middle, the close together between diaphragm with TFF diaphragm 4302; Reflection diaphragm 5303 in Fig. 7 is arranged on vitreum 5301 by position in the middle, and TFF diaphragm 5302 is arranged on vitreum 5301 position of end face on the right side; Reflection diaphragm 6303 in Fig. 9 is arranged on the keep left position of side end face of vitreum 6301, and TFF diaphragm 6302 is arranged on vitreum 6301 by position in the middle.

In like manner, Fig. 6, Fig. 8 and Figure 10 illustrate respectively other three kinds of light receiving elements based on integrated film filtering slice modular design, light channel structure and above-mentioned light receiving element shown in Figure 4 are identical, difference only is on the relative position of reflection diaphragm and TFF diaphragm in the film filtering slice module, that is: the reflection diaphragm in Fig. 6 4303 all is arranged on vitreum 4301 by position in the middle, the close together between diaphragm with TFF diaphragm 4302; Reflection diaphragm 5303 in Fig. 8 is arranged on vitreum 5301 by position in the middle, and TFF diaphragm 5302 is arranged on vitreum 5301 position of end face on the right side; Reflection diaphragm 6303 in Figure 10 is arranged on the keep left position of side end face of vitreum 6301, and TFF diaphragm 6302 is arranged on vitreum 6301 by position in the middle.

The present embodiment can be with reference to the associated description of the present embodiment to Fig. 3, Fig. 4 to light path assembling structure and the operation principle of the light receiving element of other three kinds of embodiment and light emitting devices, and the present embodiment no longer launches explanation at this.

The light receiving element that the present embodiment proposes is in the same place with the light emitting devices Integrated design, can form a light and receive/send out integrated module,, for the transmission of light signal provides 4 tunnels (can be also other any amount) wavelength channel, meet the Access Network designing requirement of 40/100Gbps high data rate communication.

Certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and those skilled in the art make in essential scope of the present utility model variation, remodeling, interpolation or replacement, also should belong to protection range of the present utility model.

Claims (10)

1. the light emitting devices with multichannel wavelength channel, is characterized in that: be provided with laser assembly, laser alignment lens subassembly, integrated film filtering slice module and focus on coupled lens; Be provided with N laser in described laser assembly, be provided with N laser alignment lens in described laser alignment lens subassembly, be provided with a vitreum in described film filtering slice module, be provided with N the logical film filtering slice of band and a reflection diaphragm on described vitreum, described N the logical film filtering slice laying adjacent with the laser alignment lens of band, described reflection diaphragm and the adjacent laying of focusing coupled lens; The laser beam of the N road different wave length by the emission of N laser is injected described N via N laser alignment lens correspondence respectively and is with and leads to film filtering slice, and by reflection diaphragm, reflect and pool a branch of light beam, after focusing on coupled lens focusing, be coupled in optical fiber.
2. the light emitting devices with multichannel wavelength channel according to claim 1, it is characterized in that: described N logical film filtering slice of band has the incident ray transmission of specific wavelength and to the characteristic of the incident ray reflection of its commplementary wave length, and the light beam of the logical film filtering slice transmission different wave length of each band, the interval of N wavelength meets the regulation of ITU to Coarse Wavelength Division Multiplexing and dense wave division multipurpose.
3. the light emitting devices with multichannel wavelength channel according to claim 1 and 2, it is characterized in that: also be provided with the pattern displacement prism between described focusing coupled lens and optical fiber, inject the pattern displacement prism by the light beam that focuses on coupled lens output, change the position of the transmission path of light beam to the light emitting devices installing optical fibres by the pattern displacement prism, light beam is impinged perpendicularly in optical fiber.
4. the light emitting devices with multichannel wavelength channel according to claim 3, it is characterized in that: described pattern displacement prism is a glass prism, be coated with antireflective coating on the plane of incidence of described glass prism and exit facet, relative two side end faces of glass prism form total internal reflection surface.
5. the light receiving element with multichannel wavelength channel, is characterized in that: be provided with the photoelectric detector assembly, focus on coupled lens assembly, integrated film filtering slice module and collimating lens; Be provided with N photoelectric detector in described photoelectric detector assembly, be provided with N and focus on coupled lens in described focusing coupled lens assembly, be provided with a vitreum in described film filtering slice module, be provided with N the logical film filtering slice of band and a reflection diaphragm on described vitreum, described N band leads to film filtering slice and focuses on the adjacent laying of coupled lens, the adjacent laying of described reflection diaphragm and collimating lens; Inject the film filtering slice module by the light signal that optical fiber is inputted via collimating lens, the light signal that is divided into N road different wave length by the film filtering slice module, inciding correspondingly N focuses in coupled lens, be coupled into respectively N photoelectric detector by focusing on coupled lens, and conversion generates the signal of telecommunication.
6. the light receiving element with multichannel wavelength channel according to claim 5, it is characterized in that: described N logical film filtering slice of band has the incident ray transmission of specific wavelength and to the characteristic of the incident ray reflection of its commplementary wave length, and the light beam of the logical film filtering slice transmission different wave length of each band, the interval of N wavelength meets the regulation of ITU to Coarse Wavelength Division Multiplexing and dense wave division multipurpose.
7. according to claim 5 or 6 described light receiving elements with multichannel wavelength channel, it is characterized in that: also be provided with the pattern displacement prism between described optical fiber and collimating lens, the light signal of inputting by optical fiber changes the installation site of the transmission path of light signal to collimating lens via the pattern displacement prism, makes light signal vertical incidence collimating lens.
8. the light receiving element with multichannel wavelength channel according to claim 7, it is characterized in that: described pattern displacement prism is a glass prism, be coated with antireflective coating on the plane of incidence of described glass prism and exit facet, relative two side end faces of glass prism form total internal reflection surface.
9. an optical module, is characterized in that: be provided with light emitting devices and the light receiving element with multichannel wavelength channel as described in any one claim in claim 5 to 8 with multichannel wavelength channel as described in any one claim in claim 1 to 4.
10. optical module according to claim 9, it is characterized in that: described N equals 4.
CN2013203976191U 2013-07-05 2013-07-05 Light emitting device possessing multipath wavelength channels, light receiving element possessing multipath wavelength channels and optical module CN203301489U (en)

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CN104865654A (en) * 2015-05-18 2015-08-26 无锡清辉光电科技有限公司 Substrate, laser array, light detector array, module, and transmitting and receiving module
CN105739023A (en) * 2016-03-18 2016-07-06 苏州伽蓝致远电子科技股份有限公司 Low-loss compact multichannel light wavelength division multiplexer with one light emergent end
CN105739024A (en) * 2016-03-18 2016-07-06 苏州伽蓝致远电子科技股份有限公司 Compact multichannel light wavelength division multiplexer with one light emergent end
CN105739022A (en) * 2016-03-18 2016-07-06 苏州伽蓝致远电子科技股份有限公司 Compact multichannel optical wavelength division multiplexer of high production efficiency
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US10203455B2 (en) 2016-12-13 2019-02-12 Source Photonics (Chengdu) Co., Ltd. Multi-channel optical transmitter and methods of making and using the same
WO2018107367A1 (en) * 2016-12-13 2018-06-21 Source Photonics (Chengdu) Company Limited Multi-channel optical transmitter and methods of making and using the same
CN107065083A (en) * 2017-03-31 2017-08-18 武汉博昇光电股份有限公司 A kind of multichannel integrated module of optical transceiver
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WO2018223265A1 (en) * 2017-06-05 2018-12-13 北极光电(深圳)有限公司 Miniature optical wavelength-division multiplexing integrated device, and manufacturing method thereof
CN107121738A (en) * 2017-06-12 2017-09-01 青岛海信宽带多媒体技术有限公司 Optical module
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CN108254837A (en) * 2017-12-06 2018-07-06 青岛海信宽带多媒体技术有限公司 A kind of multiplexing light receiving element
CN108008487B (en) * 2018-01-05 2020-04-21 北极光电(深圳)有限公司 Wavelength division multiplexer
CN108008487A (en) * 2018-01-05 2018-05-08 北极光电(深圳)有限公司 A kind of wavelength division multiplexer
CN108710216A (en) * 2018-05-22 2018-10-26 大连藏龙光电子科技有限公司 A kind of multi-channel laser transmitter optical component
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