CN201955503U - Light transceiver component - Google Patents

Light transceiver component Download PDF

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Publication number
CN201955503U
CN201955503U CN2011200353861U CN201120035386U CN201955503U CN 201955503 U CN201955503 U CN 201955503U CN 2011200353861 U CN2011200353861 U CN 2011200353861U CN 201120035386 U CN201120035386 U CN 201120035386U CN 201955503 U CN201955503 U CN 201955503U
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CN
China
Prior art keywords
light beam
optical transceiver
power detector
shell
emission light
Prior art date
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Expired - Fee Related
Application number
CN2011200353861U
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Chinese (zh)
Inventor
叶淑婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Positive Group Science And Technology Co Ltd
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Positive Group Science And Technology Co Ltd
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Priority to CN2011200353861U priority Critical patent/CN201955503U/en
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Publication of CN201955503U publication Critical patent/CN201955503U/en
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Abstract

The utility model provides a light transceiver component, which comprises a shell, a light detector, a light-emitting unit, a power detector and a light transmission unit. The shell is provided with a through hole. The light detector is arranged in the shell and is suitable for receiving a light beam entering through the through hole from outside the shell. The light-emitting unit is arranged in the shell and is suitable for emitting a transmission light beam, and part of the transmission light beam is suitable for being transmitted out of the shell through the through hole. The power detector is arranged in the shell and on a transmission path for the other part of the transmission light beam so as to monitor the light intensity of the transmission light beam. The light transmission unit is arranged on the power detector and covers one end of the other part of the transmission light beam emitted by the light-emitting unit. Due to the light transmission unit, the other part of the transmission light beam can be reflected to the power detector through a reflecting curved surface. Therefore, the direction and position of the power detector can be flexibly determined, the assembly process can be simplified and the volume can be reduced.

Description

Optical transceiver cell
Technical field
The utility model relates to a kind of optical element, relates in particular to a kind of optical transceiver cell.
Background technology
Along with the progress of the communication technology, communication mode at present has been not limited to use electric signal to realize, and Fibre Optical Communication Technology is tending towards ripe especially gradually in recent years.Because the transfer rate of light in optical fiber be far above the transfer rate of electronics in lead, so optical fiber communication can significantly promote the speed of data transmission, and then promoted the speed of downloading or uploading in the network.
In known bidirectional optical telecommunication system, system end and user end respectively has bi-directional light time module, and (bidirectional optical subassembly BOSA), and connects with optical fiber between two bi-directional light time modules.When the user held the tendency to develop delivery signal to system end, the optical transceiver cell in the bi-directional light time module of user's end can be a light signal with the electrical signal conversion of user's end, and this light signal is passed to the bi-directional light time module of system end via optical fiber.Optical transceiver cell in the bi-directional light of the system end time module can be converted to electric signal with this light signal after having received this light signal, and deals with for system end.Otherwise, when system end tendency to develop delivery signal when the user holds, the optical transceiver cell in the bi-directional light of the system end time module can be light signal with the electrical signal conversion of system end, and this light signal is passed to the bi-directional light time module of user's end via optical fiber.Optical transceiver cell in the bi-directional light time module of user's end can be converted to electric signal with this light signal, and deal with for user's end after having received this light signal.Thus, just can reach the bidirectional optical of system end and user end.
Because electronic installation at present develops towards miniaturization, so dwindling of the simplification of the inner structure of optical transceiver cell and volume just becomes the important topic that designs optical transceiver cell.
The utility model content
The utility model provides a kind of optical transceiver cell, can have structure and the smaller volume simplified, and helps to make the processing procedure facilitation and reduce cost of manufacture.
An embodiment of the present utility model proposes a kind of optical transceiver cell, comprises shell, photodetector, luminescence unit, power detector and light transfer unit.Shell has through hole.Photodetector is disposed in the shell, and is suitable for receiving the outer and receiving beam that enter via through hole from shell.Luminescence unit is disposed in the shell, and is suitable for sending the emission light beam, and a part of wherein launching light beam is suitable for being passed to outside the shell via through hole.Power detector is disposed in the shell, and is positioned on the bang path of another part of launching light beam, with the light intensity of monitoring emission light beam.The light transfer unit is disposed on the power detector, and cover an end of another part that sends the emission light beam of luminescence unit, and expose the end of this part that sends the emission light beam of luminescence unit, wherein come described another part of the emission light beam of selfluminous cell in the light transfer unit, to be passed to power detector.The light transfer unit has reflecting curved surface, and reflecting curved surface is suitable in the future, and described another part of the emission light beam of selfluminous cell reflexes to power detector.
In an embodiment of the present utility model, optical transceiver cell also comprises the wavelength separated multiplexer, be disposed on the bang path of described part of the emission light beam between luminescence unit and the through hole, and be disposed on the bang path of the receiving beam between photodetector and the through hole, the wavelength of wherein launching light beam is different from the wavelength of receiving beam, and the wavelength separated multiplexer according to the difference of wavelength and the bang path that will launch the described part of light beam separate with the bang path of receiving beam.
In an embodiment of the present utility model, the wavelength separated multiplexer of optical transceiver cell is a dichronic mirror, dichronic mirror is suitable for allowing the receiving beam from through hole penetrate and is passed to photodetector, and the described partial reflection that is suitable for the emission light beam of selfluminous cell in the future is to through hole.
In an embodiment of the present utility model, the photodetector of optical transceiver cell is a photodiode.
In an embodiment of the present utility model, optical transceiver cell also comprises the commentaries on classics impedance amplifier, is disposed in the shell, and is electrically connected to photodiode.Luminescence unit is a laser diode.
In an embodiment of the present utility model, optical transceiver cell also comprises plummer, is disposed in the shell, and has loading end, and wherein laser diode and power detector all are disposed on the loading end.Laser diode is a lateral emitting type laser diode, and the luminescent layer of laser diode is parallel in fact with the light-absorption layer of power detector.
In an embodiment of the present utility model, the power detector of optical transceiver cell is a photodiode.
In an embodiment of the present utility model, the material of the light transfer unit of optical transceiver cell is transparent colloid or glass.
In an embodiment of the present utility model, optical transceiver cell also comprises lens, is disposed in the through hole.In the optical transceiver cell of embodiment of the present utility model, owing to adopted the light transfer unit so that another part of emission light beam is reflected camber reflection to power detector, therefore the ornaments direction and the position of power detector can be more flexible, and are not limited to power detector is furnished in upright mode.Thus, just help to simplify the assembling processing procedure of power detector, also help to make the overall volume of optical transceiver cell to dwindle.
For above-mentioned feature and advantage of the present utility model can be become apparent, embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Fig. 1 is the diagrammatic cross-section of the optical transceiver cell of an embodiment of the present utility model.
The main element symbol description:
30: housing
40: fixator
50: optical fiber
52: receiving beam
100: optical transceiver cell
110: shell
111: through hole
112: pedestal
114: loam cake
120: photodetector
130: luminescence unit
132: the emission light beam
132a: first
132b: second portion
134: luminescent layer
136a: first end
136b: second end
140: power detector
142: light-absorption layer
150: the light transfer unit
152: reflecting curved surface
160: change impedance amplifier
170: plummer
172: loading end
180: the wavelength separated multiplexer
190: lens
210: lead foot
220: optical filter
230: support unit
Embodiment
Fig. 1 is the diagrammatic cross-section of the optical transceiver cell of an embodiment of the present utility model.Please refer to Fig. 1, the optical transceiver cell 100 of present embodiment comprises shell 110, photodetector 120, luminescence unit 130, power detector 140 and light transfer unit 150.Shell 110 has through hole 111.In the present embodiment, shell 110 comprises pedestal 112 and loam cake 114, wherein pedestal 112 for example be electric crystal profile head (transistor outline header, TO-header), and loam cake 114 for example be electric crystal external form jar (transistor outline can, TO-can).In the present embodiment, through hole 111 is positioned on the loam cake 114.
Photodetector 120 is disposed in the shell 110, and is suitable for receiving the outer and receiving beam 52 that enter via through hole 111 from shell 110.In the present embodiment, photodetector 120 is disposed on the pedestal 112, and photodetector 120 for example is a photodiode (photodiode).Particularly, photodetector 120 is suitable for receiving the receiving beam 52 from the optical fiber 50 of through hole 111 tops, and the light signal that behind the described receiving beam 52 of detection described receiving beam 52 is comprised converts electric signal to.In the present embodiment, optical transceiver cell 100 also comprises changes impedance amplifier 160, is disposed in the shell 110, and is electrically connected to photodetector 120.It is configurable on pedestal 112 to change impedance amplifier 160, and the electric signal that is suitable for photodetector 52 is transmitted amplifies, and is beneficial to interpretation.
Luminescence unit 130 is disposed in the shell 110, and is suitable for sending emission light beam 132, and the 132a of first that wherein launches light beam 132 is suitable for being passed to outside the shell 110 via through hole 111.Luminescence unit 130 for example be laser diode (laser diode, LD).
Power detector 140 is disposed in the shell 110, and is positioned on the bang path of the second portion 132b that launches light beam 132, with the light intensity of monitoring emission light beam 132.In the present embodiment, power detector 140 for example is a photodiode.Light transfer unit 150 is disposed on the power detector 140, and cover the first end 136a of the second portion 132b that sends emission light beam 132 of luminescence unit 130, and expose the second end 136b of the 132a of first that sends emission light beam 132 of luminescence unit 130.Come the second portion 132b of the emission light beam 132 of selfluminous cell 130 in light transfer unit 150, to be passed to power detector 140.Light transfer unit 150 has reflecting curved surface 152, and the second portion 132b that reflecting curved surface 152 is suitable for the emission light beam 132 of selfluminous cell 130 in future reflexes to power detector 140.In the present embodiment, reflecting curved surface 152 for example is crooked convex surface.
In the optical transceiver cell 100 of present embodiment, curved surface 152 reflexes to power detector 140 so that the second portion 132b of emission light beam 132 is reflected owing to adopted light transfer unit 150, therefore the ornaments direction and the position of power detector 140 can be more flexible, and are not limited to power detector 140 is furnished in upright mode.Thus, just help to simplify the assembling processing procedure of power detector 140, also help to make the overall volume of optical transceiver cell 100 to dwindle.
Luminescence unit 130 is disposed on the pedestal 112 with power detector 140.In the present embodiment, optical transceiver cell 100 also comprises plummer 170, is disposed in the shell 110, and has loading end 172, and wherein luminescence unit 130 all is disposed on the loading end 172 with power detector 140, and plummer 170 is disposed on the pedestal 112.In addition, in the present embodiment, luminescence unit 130 is a lateral emitting type laser diode, and the luminescent layer 134 of luminescence unit 130 is parallel in fact with the light-absorption layer 142 of power detector 140.In other words, because the reflecting curved surface 152 of light transfer unit 150 makes the effect of the second portion 132b reflection of emission light beam 132, power detector 140 can be flatly smooth on loading end 172 as luminescence unit 130, and must not make power detector 140 arranged perpendicular and light-absorption layer 142 is put perpendicular to luminescent layer 134.Thus, just can simplify the assembling processing procedure of optical transceiver cell 100, and then reduce journey originally.In addition, because power detector 140 is all smooth on plummer 170 with luminescence unit 130, therefore optical transceiver cell 100 can not must adopt another plummer vertically to attach power detector 140, so except can simplifying processing procedure, reducing cost, also can dwindle the volume of optical transceiver cell 100.
In the present embodiment, the material of light transfer unit 150 for example is a transparent colloid.Yet in other embodiments, the material of light transfer unit 150 can also be glass or other transparent materials.Because the refractive index of light transfer unit 150 is greater than air, the therefore second portion 132b of the emission light beam 132 that in light transfer unit 150, transmits curved surface 152 reflections that are easy to be reflected, or even total reflection takes place.Thus, just can there be the second portion 132b of the emission light beam 132 of more ratio to be reflected onto power detector 140
In the present embodiment, optical transceiver cell 100 also comprises wavelength separated multiplexer (wavelength division multiplexer, WDM) 180, be disposed on the bang path of the 132a of first of the emission light beam 132 between luminescence unit 130 and the through hole 111, and be disposed on the bang path of the receiving beam 52 between photodetector 120 and the through hole 111.The wavelength of emission light beam 132 is different from the wavelength of receiving beam 52, and wavelength separated multiplexer 180 will be launched the 132a of first of light beam 132 according to the difference of wavelength bang path separates with the bang path of receiving beam 52.
Particularly, wavelength separated multiplexer 180 for example is dichronic mirror (dichroic mirror), dichronic mirror is suitable for allowing the receiving beam 52 from through hole 111 penetrate and is passed to photodetector 120, and is suitable in the future that the 132a of first of the emission light beam 132 of selfluminous cell 130 reflexes to through hole 111.Yet in other embodiments, dichronic mirror can also be that receiving beam 52 is reflexed to photodetector 120, and allows the 132a of first of emission light beam 132 penetrate and be passed to through hole 111.In the present embodiment, wavelength separated multiplexer 180 can be disposed on the pedestal 112 by support unit 230.
In the present embodiment, optical transceiver cell 100 also comprises lens 190, is disposed in the through hole 111, converges in the optical fiber 50 with the 132a of first that will launch light beam 132, and receiving beam 52 is converged on the wavelength separated multiplexer 180.In addition, in the present embodiment, optical transceiver cell 100 also comprises a plurality of lead foots 210, and these lead foots 210 are electrically connected to luminescence unit 130, photodetector 120 and power detector 140 respectively.In addition, these lead foots 210 can be electrically connected to system end or user's end, and wherein system end or user end for example is the device in computer system, server, router (router) or other network systems.For example, system end and user's end can respectively have optical transceiver cell 100, and connect with optical fiber 50 between two optical transceiver cells 100.Photodetector 120 can be converted to electric signal with the light signal that receiving beam 52 is comprised after detecting receiving beam 52, and electric signal is passed to system end or the user's end that this optical transceiver cell 100 is connected via lead foot 210, and finishes the reception of signal.On the other hand, system end or user's end can send electric signal and be passed to its optical transceiver cell that connects 100, for example are to make electric signal be passed to luminescence unit 130 via lead foot 210.Luminescence unit 130 is the light signal that comprised of emission light beam 132 with electrical signal conversion, but power detector 140 power of immediately monitoring emission light beam 132 then, to guarantee the correctness of light signal.Thus, promptly finish the emission of signal.Therefore, the optical transceiver cell 100 of present embodiment can reach the effect of bidirectional optical signal transmitting-receiving.
In the present embodiment, optical transceiver cell 100 is configurable in housing 30, and an end of optical fiber 50 can be fixed on the housing 30 by fixator 40.
In the present embodiment, optical transceiver cell 100 also comprises optical filter 220, be disposed on the bang path of the receiving beam 52 between wavelength separated multiplexer 180 and the photodetector 120, and optical filter 220 is suitable for allowing the light with wavelength of receiving beam 52 pass through, and stops light with other wavelength.Thus, can guarantee that photodetector 120 detected light signals are not subjected to the interference of other parasitic lights (for example parasitic light in the environment).Yet, in other embodiments, also optical filter can be disposed on the bang path of the 132a of first of the bang path of the receiving beam 52 between optical fiber 50 and the wavelength separated multiplexer 180 and emission light beam 132, this moment, optical filter was suitable for making the light of wavelength with receiving beam 52 and the wavelength of launching light beam 132 to pass through, and stopped the light with other wavelength.
In sum, in the optical transceiver cell of embodiment of the present utility model, owing to adopted the light transfer unit so that the second portion of emission light beam is reflected camber reflection to power detector, therefore the ornaments direction and the position of power detector can be more flexible, and are not limited to power detector is furnished in upright mode.Thus, just help to simplify the assembling processing procedure of power detector, also help to make the overall volume of optical transceiver cell to dwindle.
Though the utility model discloses as above with embodiment, so it is not in order to limiting the utility model, and any person of an ordinary skill in the technical field when can doing a little change and retouching, and does not break away from spirit and scope of the present utility model.

Claims (11)

1. an optical transceiver cell is characterized in that, comprising:
Shell has through hole;
Photodetector is disposed in the described shell, and is suitable for receiving the outer and receiving beam that enter via described through hole from described shell;
Luminescence unit is disposed in the described shell, and is suitable for sending the emission light beam, and the part of wherein said emission light beam is suitable for being passed to outside the described shell via described through hole;
Power detector is disposed in the described shell, and is positioned on the bang path of another part of described emission light beam, to monitor the light intensity of described emission light beam; And
The light transfer unit, be disposed on the described power detector, and cover an end of described another part of the described emission light beam of sending of described luminescence unit, and expose an end of the described part of the described emission light beam of sending of described luminescence unit, wherein the described another part from the described emission light beam of described luminescence unit is passed to described power detector in described smooth transfer unit, described smooth transfer unit has reflecting curved surface, and described reflecting curved surface is suitable for the described another part from the described emission light beam of described luminescence unit is reflexed to described power detector.
2. optical transceiver cell according to claim 1, it is characterized in that, also comprise the wavelength separated multiplexer, be disposed on the bang path of described part of the described emission light beam between described luminescence unit and the described through hole, and be disposed on the bang path of the described receiving beam between described photodetector and the described through hole, the wavelength of wherein said emission light beam is different from the wavelength of described receiving beam, and described wavelength separated multiplexer is according to the difference of wavelength and the bang path of the described part of described emission light beam is separated with the bang path of described receiving beam.
3. optical transceiver cell according to claim 2, it is characterized in that, described wavelength separated multiplexer is a dichronic mirror, described dichronic mirror is suitable for allowing the described receiving beam from described through hole penetrate and is passed to described photodetector, and be suitable for from the described partial reflection of the described emission light beam of described luminescence unit to described through hole.
4. optical transceiver cell according to claim 1 is characterized in that, described photodetector is a photodiode.
5. optical transceiver cell according to claim 4 is characterized in that, also comprises the commentaries on classics impedance amplifier, is disposed in the described shell, and is electrically connected to described photodiode.
6. optical transceiver cell according to claim 1 is characterized in that, described luminescence unit is a laser diode.
7. optical transceiver cell according to claim 6 is characterized in that, also comprises plummer, is disposed in the described shell, and has loading end, and wherein said laser diode and described power detector all are disposed on the described loading end.
8. optical transceiver cell according to claim 7 is characterized in that, described laser diode is a lateral emitting type laser diode, and the luminescent layer of described laser diode is parallel in fact with the light-absorption layer of described power detector.
9. optical transceiver cell according to claim 1 is characterized in that described power detector is a photodiode.
10. optical transceiver cell according to claim 1, the material that it is characterized in that described smooth transfer unit is transparent colloid or glass.
11. optical transceiver cell according to claim 1 is characterized in that, also comprises lens, is disposed in the described through hole.
CN2011200353861U 2011-02-01 2011-02-01 Light transceiver component Expired - Fee Related CN201955503U (en)

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CN2011200353861U CN201955503U (en) 2011-02-01 2011-02-01 Light transceiver component

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107797195A (en) * 2016-08-29 2018-03-13 年益实业股份有限公司 Optical assembly positioning adjustment device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107797195A (en) * 2016-08-29 2018-03-13 年益实业股份有限公司 Optical assembly positioning adjustment device
CN107797195B (en) * 2016-08-29 2019-07-19 年益实业股份有限公司 Optical assembly positioning adjustment device

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110831

Termination date: 20170201

CF01 Termination of patent right due to non-payment of annual fee