CN202374269U - Integrated array photoelectric detector and multiplexer module employing detector - Google Patents
Integrated array photoelectric detector and multiplexer module employing detector Download PDFInfo
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- CN202374269U CN202374269U CN2011203972346U CN201120397234U CN202374269U CN 202374269 U CN202374269 U CN 202374269U CN 2011203972346 U CN2011203972346 U CN 2011203972346U CN 201120397234 U CN201120397234 U CN 201120397234U CN 202374269 U CN202374269 U CN 202374269U
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- array photodetectors
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Abstract
The utility model provides an attenuation adjustable multiplexer module employing an integrated array photoelectric detector. The multiplexer module comprises an integrated planar light-wave circuit (PLC) variable optical attenuator (VOA) module, a PLC signal splitter, an array photoelectric detector and a PLC multiplexer, wherein the signal splitter is made of a chip based on a PLC technology; an input end of the signal splitter is directly coupled to an output end of the VOA module; each path of the signal splitter comprises an input channel and two output channels; an optical signal output by each output channel of the VOA module is divided into two parts; and one output channel is directly coupled to an input end of the multiplexer for multiplexing and optical signals are output from the output end of the multiplexer, and the other output channel is directly coupled to the array photoelectric detector so as to realize a function of monitoring optical power of each channel. The multiplexer module has the advantages of small volume, high reliability, low cost and the like.
Description
Technical field
The utility model relates to a kind of multiplexer with monitoring function, particularly a kind of integrated form array photodetectors and adopt this integrated form array photodetectors to carry out the multiplexer module of monitoring function.
Background technology
Variable optical attenuator (VOA; Variable Optical Attenuator) be power management devices important in the Networks of Fiber Communications; Realize in good time control through decay to light signal to transmitting optical power, balanced to reach luminous power balance, flat gain, dynamic gain balance and transmitting optical power.In the less system of fiber channel, generally to using coupler to tell a certain proportion of light signal in the light signal of every road, the light signal of being told with corresponding detector reception again is to monitor.In system,, need light-dividing device be set to each light path such as in having the multiplexer of more optical channel with more fiber channel (like 40 passages); Thereby use more coupler and detector; It is very huge that this will cause that the volume of systems such as multiplexer becomes, and sense channel is many, is difficult to the integrated of the system that realizes; Reliability reduces, and system cost is also than higher.
The utility model content
Bigger to the detection system volume to multiplexer output light signal in the prior art, be difficult to the integrated of the system that realizes, reliability reduces; Defectives such as cost height; The utility model provides a kind of integrated form array photodetectors, comprise that a plurality of photodiodes are used to detect multipath light signal, is characterized in that; Said array photodetectors also comprises ceramic base, sheet glass, flexible PCB and pin contact pin; Said photodiode is encapsulated in the ceramic base, and sheet glass covers and on ceramic base, covers photodiode, offers a plurality of apertures that are complementary with photodiode positions on the sheet glass and is used for input optical signal; One face down bonding of flexible PCB is received negative electrode and the anode of ceramic base below to draw photodiode, and the opposite side of said flexible PCB connects the pin contact pin.
In an embodiment of the utility model, the surface of aperture is coated with anti-reflection film to increase the receiving sensitivity of photodetector on the said sheet glass, and all the other places of sheet glass are coated with high-reflecting film to reduce crosstalking between adjacent photodetectors.
In an embodiment of the utility model, said pin contact pin connects external circuit and is used to obtain supply of electrical energy to array photodetectors.
The utility model also proposes a kind of multiplexer module that adopts above-mentioned integrated form array photodetectors; Comprise integrated planar optical waveguide type variable optical attenuator module, planar type optical waveguide signal shunt, integrated form array photodetectors and planar type optical waveguide multiplexer; Said signal shunt is by adopting the chip based on the integrated planar optical waveguide technology to process; The be of coupled connections output of variable optical attenuator module of its input; Each passage of said signal shunt includes one tunnel input channel and two-way output channel; The light signal that every road output channel of variable optical attenuator module is exported is divided into two parts; The input that one tunnel output channel is directly coupled to multiplexer carries out multiplexing back from multiplexer output terminal output, and another road output channel is directly coupled in the array photodetectors to reach the function that each passage luminous power is monitored.
In an embodiment of the utility model; Said array photodetectors comprises a plurality of photodiodes, ceramic base, sheet glass, flexible PCB and pin contact pin; Said photodiode is encapsulated in the ceramic base; Sheet glass covers and on ceramic base, covers photodiode, offers a plurality of apertures that are complementary with photodiode positions on the sheet glass; One face down bonding of flexible PCB is received negative electrode and the anode of ceramic base below to draw photodiode, and the opposite side of said flexible PCB connects the pin contact pin.
In an embodiment of the utility model, the surface of aperture is coated with anti-reflection film to increase the receiving sensitivity of photodetector on the said sheet glass, and all the other places of sheet glass are coated with high-reflecting film to reduce crosstalking between adjacent photodetectors PD.
In an embodiment of the utility model, said pin contact pin connects external circuit and is used to obtain supply of electrical energy to array photodetectors.
In an embodiment of the utility model; The said photo-signal channel that is directly coupled to the multiplexer input is in signal shunt centre position longitudinally; The photo-signal channel that is directly coupled to array photodetectors is divided into two groups, is positioned at the both sides of the photo-signal channel of the input that is directly coupled to multiplexer.
The multiplexer module of the employing integrated form array photodetectors that the utility model disclosed, it is little to have a volume, and reliability is high, low cost and other advantages.
Description of drawings
Fig. 1 is the structural representation of the multiplexer module 100 of the employing integrated form array photodetectors that discloses of the utility model.
Fig. 2 is the index path of the planar type optical waveguide type signal shunt 102 that discloses of the utility model.
Fig. 3 is the stereogram of the integrated form array photodetectors 103 that discloses of the utility model.
Embodiment
Describe the utility model most preferred embodiment in detail below in conjunction with accompanying drawing.
As shown in Figure 1, be the structural representation of the multiplexer module 100 of the employing integrated form array photodetectors that discloses of the utility model.Multiplexer module 100 comprises integrated planar optical waveguide type (PLC) variable optical attenuator (voa) module 101, PLC signal shunt 102, array photodetectors 103 and PLC multiplexer 104.Wherein, Directly the be of coupled connections output of VOA module 101 of the input of signal shunt 102; Each road of signal shunt 102 includes one tunnel input channel and two-way output channel; The light signal that every road output channel of VOA module 101 is exported is divided into two groups; Wherein one group of photo-signal channel input of being directly coupled to multiplexer 104 carries out multiplexing back from multiplexer output terminal output, and another group photo-signal channel is directly coupled to array photodetectors 103 to reach the function that each passage luminous power is monitored.As shown in the figure; When multiplexer module 100 has more optical-fibre channel; Arrange rationally clear in order to make whole multiplexer module 100 internal components; For signal shunt 102, the photo-signal channel that is directly coupled to multiplexer 104 inputs is arranged in signal shunt 102 centre position longitudinally, the photo-signal channel that is directly coupled to array photodetectors 103 is divided into two groups and lay respectively at the both sides of the photo-signal channel of the input that is directly coupled to multiplexer 104.
As shown in Figure 2, be the index path of the PLC signal shunt 102 that discloses of the utility model.Signal shunt 102 is based on the chip of integrated planar optical waveguide technology.In this execution mode, 1021 in the signal shunt 102 is 40 tunnel input channels, and 1022 and 1023 are respectively two 40 tunnel output channels.Can find out in conjunction with Fig. 1 and Fig. 2; Directly the be of coupled connections output of VOA module 101 of input channel 1021; Output channel 1022 is directly coupled to the input of multiplexer 104 and is in signal shunt 102 centre position longitudinally, and another road output channel 1023 is directly coupled to array photodetectors 103.As explaining among Fig. 1, for the reasonable position of the internal components of distribution multiplexer module 100,, be symmetry axis with output channel 1022 also with output channel 1023 for rationally the arranging of fibre circuit, stretch out from the both sides of output channel 1022.VOA module 101 with 40 passage light signals can be carried out modulated attenuation to input light according to customer requirement; After signal shunt 102 beam split; The luminous power of each passage 5% gets into the function of array photodetectors 103 to realize each passage luminous power is monitored in the 40 passage light signals of output; All the other luminous powers of 95% are transferred in the multiplexer 104, and the light of 104 pairs of 40 passages 95% of multiplexer carries out passing to client after multiplexing.
As shown in Figure 3, be the stereogram of the integrated form array photodetectors 103 that discloses of the utility model.As shown in the figure; Integrated form array photodetectors 103 comprises a plurality of photodiode 1031, ceramic base 1032, sheet glass 1033, flexible PCB 1034 and pin contact pin 1035, and wherein the quantity of photodiode 1031 can be according to the quantity setting of photo-signal channel.Be encapsulated in ceramic base 1032 centres to photodiode 1031; Sheet glass 1033 covers on ceramic base 1032 and covers photodiode 1031; Offer the apertures 1036 that a plurality of and photodiode 1031 positions are complementary on the sheet glass 1033, the light signal that is directly coupled to array photodetectors 103 by output channel 1023 receives from aperture 1036 inputs and by the photodiode 1031 of aperture 1036 belows.The surface of each aperture 1036 is coated with anti-reflection film to increase the receiving sensitivity of photodiode 1031, and sheet glass 1033 all the other places are coated with high-reflecting film crosstalking with light signal between the reduction adjacent photodiode 1031.One face down bonding of flexible PCB 1034 is received negative electrode and the anode of ceramic base 1032 belows to draw a plurality of photodiodes 1031, and the opposite side of said flexible PCB 1034 connects pin contact pin 1035.Pin contact pin 1035 connects external circuit and is used to obtain supply of electrical energy to array photodetectors 103.
In this execution mode; Integrated form array photodetectors 103 is divided into two certain applications in the multiplexer module with 40 road photo-signal channels 100; In other embodiments; The photodiode quantity of integrated form array photodetectors 103 is not limited to 40, also can be used in the device with 48,80 road photo-signal channels.According to the quantity of photo-signal channel, can array photodetectors be divided into the multicomponent opening and put.The size and Orientation of flexible PCB 1034 can be according to the size setting of multiplexer module.The scope that the utility model is protected not merely is confined to the embodiment that top execution mode is showed, simply change irregularly resulting structures change all falls into the protection range of the utility model according to the utility model.
Claims (8)
1. integrated form array photodetectors; Comprise that a plurality of photodiodes are used to detect multipath light signal; It is characterized in that said array photodetectors also comprises ceramic base, sheet glass, flexible PCB and pin contact pin, said photodiode is encapsulated in the ceramic base; Sheet glass covers and on ceramic base, covers photodiode, offers a plurality of apertures that are complementary with photodiode positions on the sheet glass and is used for input optical signal; One face down bonding of flexible PCB is received negative electrode and the anode of ceramic base below to draw photodiode, and the opposite side of said flexible PCB connects the pin contact pin.
2. integrated form array photodetectors as claimed in claim 1; It is characterized in that; The surface of aperture is coated with anti-reflection film to increase the receiving sensitivity of photodetector on the said sheet glass, and all the other places of sheet glass are coated with high-reflecting film to reduce crosstalking between adjacent photodetectors.
3. integrated form array photodetectors as claimed in claim 1 is characterized in that, said pin contact pin connects external circuit and is used to obtain supply of electrical energy to array photodetectors.
4. multiplexer module that adopts the said integrated form array photodetectors of claim 1; Comprise integrated planar optical waveguide type variable optical attenuator module, planar type optical waveguide signal shunt, integrated form array photodetectors and planar type optical waveguide multiplexer; It is characterized in that; Said signal shunt is by adopting the chip based on the integrated planar optical waveguide technology to process; The be of coupled connections output of variable optical attenuator module of its input; Each passage of said signal shunt includes one tunnel input channel and two-way output channel; The light signal that every road output channel of variable optical attenuator module is exported is divided into two parts, and the input that one tunnel output channel is directly coupled to multiplexer carries out multiplexing back from multiplexer output terminal output, and another road output channel is directly coupled in the array photodetectors to reach the function that each passage luminous power is monitored.
5. the multiplexer module of employing integrated form array photodetectors as claimed in claim 4; It is characterized in that; Said array photodetectors comprises a plurality of photodiodes, ceramic base, sheet glass, flexible PCB and pin contact pin; Said photodiode is encapsulated in the ceramic base, and sheet glass covers and on ceramic base, covers photodiode, offers a plurality of apertures that are complementary with photodiode positions on the sheet glass; One face down bonding of flexible PCB is received negative electrode and the anode of ceramic base below to draw photodiode, and the opposite side of said flexible PCB connects the pin contact pin.
6. the multiplexer module of employing integrated form array photodetectors as claimed in claim 4; It is characterized in that; The surface of aperture is coated with anti-reflection film to increase the receiving sensitivity of photodetector on the said sheet glass, and all the other places of sheet glass are coated with high-reflecting film to reduce crosstalking between adjacent photodetectors.
7. the multiplexer module of employing integrated form array photodetectors as claimed in claim 4 is characterized in that, said pin contact pin connects external circuit and is used to obtain supply of electrical energy to array photodetectors.
8. the multiplexer module of employing integrated form array photodetectors as claimed in claim 4; It is characterized in that; The said photo-signal channel that is directly coupled to the multiplexer input is in signal shunt centre position longitudinally; The photo-signal channel that is directly coupled to array photodetectors is divided into two groups, is positioned at the both sides of the photo-signal channel of the input that is directly coupled to multiplexer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203972346U CN202374269U (en) | 2011-10-18 | 2011-10-18 | Integrated array photoelectric detector and multiplexer module employing detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203972346U CN202374269U (en) | 2011-10-18 | 2011-10-18 | Integrated array photoelectric detector and multiplexer module employing detector |
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| CN202374269U true CN202374269U (en) | 2012-08-08 |
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| CN2011203972346U Expired - Lifetime CN202374269U (en) | 2011-10-18 | 2011-10-18 | Integrated array photoelectric detector and multiplexer module employing detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170065208A1 (en) * | 2014-03-07 | 2017-03-09 | Ngk Spark Plug Co., Ltd. | Respiratory Monitor |
| CN108107514A (en) * | 2017-12-14 | 2018-06-01 | 武汉电信器件有限公司 | A kind of shell structure for box packaging optical devices |
-
2011
- 2011-10-18 CN CN2011203972346U patent/CN202374269U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170065208A1 (en) * | 2014-03-07 | 2017-03-09 | Ngk Spark Plug Co., Ltd. | Respiratory Monitor |
| CN108107514A (en) * | 2017-12-14 | 2018-06-01 | 武汉电信器件有限公司 | A kind of shell structure for box packaging optical devices |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |