CN204855860U - But adjustable optical attenuator of plug and control - Google Patents
But adjustable optical attenuator of plug and control Download PDFInfo
- Publication number
- CN204855860U CN204855860U CN201520457247.6U CN201520457247U CN204855860U CN 204855860 U CN204855860 U CN 204855860U CN 201520457247 U CN201520457247 U CN 201520457247U CN 204855860 U CN204855860 U CN 204855860U
- Authority
- CN
- China
- Prior art keywords
- optical
- light
- diaphragm
- attenuator
- input
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model provides a but adjustable optical attenuator of plug and control, input optical collimator, output optical collimator and total reflection diaphragm difference fixed mounting are in optics base one side, optical attenuator and beam split diaphragm and light detector difference fixed mounting are at optics base opposite side, the input fiber connection is on input optical collimator, the output optical fibre is connected on output optical collimator, in optical attenuator can be jeted into through the optics base to the light of input optical collimator input, light that optical attenuator jetted out can be through in kicking into the beam split diaphragm after the reflection of total reflection diaphragm, light detector and beam split diaphragm correspond the installation, the light that makes the beam split diaphragm tell is kicked into in the light detector, the light of beam split diaphragm reflection is kicked into to the output optical collimator in, light detector is connected with circuit board electricity, optical attenuator is connected with circuit board electricity. The utility model discloses utilize the optics base as the transmission carrier of light signal and a plurality of optical element's bonding fixation carrier, be favorable to the volume of product to reduce, also reduced the comprehensive cost of product.
Description
Technical field
The optics of adjustable optical attenuator that the utility model discloses a kind of pluggable adjustable optical attenuator monitored, particularly a kind of Small Form-Factor Pluggable, that can monitor and structural design, belong to optical communication field.
Background technology
In optical communication system, adjustable optical attenuator (VOA) is the dynamic device of a kind of important optical fiber, is mainly used in the power-balance of channel in dense wave division multipurpose (DWDM) system, realizes flat gain, dynamic gain equalization and through-put power balanced, at present, this product finds broad application.In utilization process, single conventional adjustable optical attenuator product is the monitoring cannot accomplishing Signal Regulation, also None-identified attenuator whether function reduction or inefficacy.So, utilization needs to increase light-splitting device in systems in which, the sub-fraction of signal is separated, and receives with an optical power detector, photo-detector converts this small-signal to electric signal again, and final system is judged by electric signal and controls the light output energy of adjustable optical attenuator.Please refer to that accompanying drawing 1, Fig. 1 is before the modulation of traditional photosystem, light signal monitoring schematic diagram after modulation.Connect welded together between photo-detector A1 and optical attenuator A2 by optical fiber, be also connect welded together by optical fiber between optical attenuator A2 and photo-detector A3, the optical fiber between device is fixing in systems in which by the coiling of certain radian, therefore needs the space strengthened.The light signal that need modulate is introduced into photo-detector A1, and a small amount of light signal is downloaded and converts electric signal to for monitoring, and most of signal reflex out and enter optical attenuator A2.After light signal is attenuated modulation, again reflects and enter photo-detector A3, a small amount of light signal is downloaded and converts electric signal to for monitoring, and most of signal reflex has out been got back in photosystem.For realizing monitoring the light signal energy of adjustable attenuator input and output, adopting the photo-detector of cascade band tail optical fiber, needing optical fiber to connect weldering, cause device systems complex structure between device and device, volume is comparatively large, too increases system cost.
Please refer to application number is 2010205068169, and name is called: pluggable attenuator at first Chinese patent, between adjustable attenuator with photodiode, adopt bend insensitive fiber to be connected, this bend insensitive fiber is at least wound around a circle.Avoid the impact of mould noise by increasing the length of bend insensitive fiber thus realize the stable effect of damping capacity.Bend insensitive fiber needs dish is fine and fixing, and two devices belong to conjuncted structure, and production cost is also higher.
Please refer to application number is 201120377192X, name is called: pluggable attenuator, the output terminal of adjustable optical attenuator have employed microbend fiber, and at this optical fiber connector, a tap detector has been installed, connect the microbend fiber of optical attenuator and detector, two individual devices connected together, manufacture difficulty superposition, cost is higher.
Summary of the invention
For the above-mentioned optical attenuator complex structure of the prior art mentioned, the shortcoming that cost is high, the utility model provides a multi-functional integrated optic component with low cost.
The technical scheme that the utility model solves the employing of its technical matters is: a kind of pluggable adjustable optical attenuator with monitoring, adjustable optical attenuator comprises circuit board, optical attenuator, optical substrate, input optical collimator, input optical fibre, output optical fibre, export optical collimator, total reflection diaphragm, light splitting diaphragm and photo-detector, input optical collimator, export optical collimator and be totally reflected diaphragm and be fixedly mounted on optical substrate side respectively, optical attenuator and light splitting diaphragm and photo-detector are fixedly mounted on optical substrate opposite side respectively, input optical fibre is connected on input optical collimator, output optical fibre is connected to and exports on optical collimator, the light of input optical collimator input can by optical substrate incident light attenuator, the light of optical attenuator injection can by injecting in light splitting diaphragm after the reflection of total reflection diaphragm, photo-detector and light splitting diaphragm correspondence are installed, in the light incident light detector that light splitting diaphragm is separated, the light of light splitting diaphragm reflection is incident upon and exports in optical collimator, photo-detector is electrically connected with circuit board, optical attenuator is electrically connected with circuit board.
The technical scheme that the utility model solves the employing of its technical matters further comprises:
Two logical light faces of described optical substrate can be coated with anti-reflection film, to reduce the loss that light signal passes through; Also spectro-film, total reflection film can be locally coated with, for replacing light splitting diaphragm, total reflection diaphragm; The shape that optical substrate is overlooked can be rectangle, or parallelogram, or other polygon;
Described input optical fibre is connected with light input adapter.
Described output optical fibre is connected with light output joint.
Described circuit board is provided with connection-peg.
The beneficial effects of the utility model are: the optical fiber that interiors of products of the present utility model does not exist between multiple device connects weldering, but utilize optical substrate as the transport vehicle of light signal, also be utilize optical substrate as the carrier that is adhesively fixed of multiple optical element, be conducive to the volume-diminished of product, also reduce the integrated cost of product.Also miniaturization in design, can adopt general SFP box body encapsulation.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 is the light signal monitoring schematic diagram before the modulation of traditional photosystem, after modulation.
Fig. 2 be the utility model structural representation,
In figure, 1-circuit board, 2-optical attenuator, 3-optical substrate, 4-inputs optical collimator, 5-input optical fibre, 6-light input adapter, 7-light output joint, 8-output optical fibre, and 9-exports optical collimator, and 10-is totally reflected diaphragm, 11-light splitting diaphragm, 12-photo-detector.
Embodiment
The present embodiment is the utility model preferred implementation, and other its principles all are identical with the present embodiment or approximate with basic structure, all within the utility model protection domain.
Please refer to accompanying drawing 2, the utility model mainly comprises circuit board 1, optical attenuator 2, optical substrate 3, input optical collimator 4, input optical fibre 5, output optical fibre 8, exports optical collimator 9, total reflection diaphragm 10, light splitting diaphragm 11 and photo-detector 12, in the present embodiment, optical substrate 3 is immobilization carrier of the present utility model, in the present embodiment, two logical light faces of optical substrate 3 can be coated with anti-reflection film, to reduce the loss that light signal passes through, the shape that optical substrate is overlooked can be rectangle, or parallelogram, or other polygon, input optical collimator 4, export optical collimator 9 and be totally reflected diaphragm 10 and be fixedly mounted on optical substrate 3 side respectively, optical attenuator 2 and light splitting diaphragm 11 and photo-detector 12 are fixedly mounted on optical substrate 3 opposite side respectively, input optical fibre 5 is connected on input optical collimator 4, output optical fibre 8 is connected to and exports on optical collimator 9, the light that input optical collimator 4 inputs can in incident light attenuator 2, the light that optical attenuator 2 penetrates is injected in light splitting diaphragm 11 after reflecting by total reflection diaphragm 10, photo-detector 12 is corresponding with light splitting diaphragm 11 to be installed, in the light incident light detector 12 that light splitting diaphragm 11 is separated, the light that light splitting diaphragm 11 reflects is incident upon and exports in optical collimator 9, photo-detector 12 is electrically connected with circuit board 1, the light signal detected be changed into electric signal transmission to circuit board 1, optical attenuator 2 is electrically connected with circuit board 1, control optical attenuator 2 by circuit board 1 to work.In the present embodiment, input optical fibre 5 is connected with light input adapter 6, output optical fibre 8 is connected with light output joint 7.Circuit board 1 is provided with connection-peg, the utility model can be accessed other system.
Be specifically described for independent light splitting diaphragm 11 and total reflection diaphragm 10 in above-described embodiment, when specifically implementing, also can be coated with spectro-film, total reflection film in optical substrate local, for replacing light splitting diaphragm, total reflection diaphragm.
In use, the light signal in system enters the utility model by light input adapter 6 to the utility model, and transmit through optical fiber 5, after the condenser lens by optical collimator 4, light signal is collimated, then is irradiated in optical substrate 3.Light signal is after once the transmitting of optical substrate 3, light signal receive by optical attenuator 2 and modulate, light signal is after ovennodulation, be reflected back optical substrate 3 again, light signal can be totally reflected diaphragm 10 and reflect, then projects optical substrate 3, diaphragm 11 transmission that is split of fraction light is had to go out in light signal, receive by photo-detector 12 and after signal is changed into electric current, after being detected by circuit board 1, feed back to system, thus realize intensity detection and the judgement of output signal.Beat most of light signal on light splitting diaphragm 11 and be reflected back toward optical substrate 3, eventually pass through optical substrate 3 receive by optical collimator 9, and then light signal gives light output joint 7 by optical fiber 8 transmission and gets back in system.
The optical fiber that interiors of products of the present utility model does not exist between multiple device connects weldering, but utilize optical substrate as the transport vehicle of light signal, also be utilize optical substrate as the carrier that is adhesively fixed of multiple optical element, be conducive to the volume-diminished of product, also reduce the integrated cost of product.Also miniaturization in design, can adopt general SFP box body encapsulation.
Claims (8)
1. a pluggable adjustable optical attenuator with monitoring, it is characterized in that: described adjustable optical attenuator comprises circuit board, optical attenuator, optical substrate, input optical collimator, input optical fibre, output optical fibre, export optical collimator, total reflection diaphragm, light splitting diaphragm and photo-detector, input optical collimator, export optical collimator and be totally reflected diaphragm and be fixedly mounted on optical substrate side respectively, optical attenuator and light splitting diaphragm and photo-detector are fixedly mounted on optical substrate opposite side respectively, input optical fibre is connected on input optical collimator, output optical fibre is connected to and exports on optical collimator, the light of input optical collimator input can by optical substrate incident light attenuator, the light of optical attenuator injection can by injecting in light splitting diaphragm after the reflection of total reflection diaphragm, photo-detector and light splitting diaphragm correspondence are installed, in the light incident light detector that light splitting diaphragm is separated, the light of light splitting diaphragm reflection is incident upon and exports in optical collimator, photo-detector is electrically connected with circuit board, optical attenuator is electrically connected with circuit board.
2. the pluggable adjustable optical attenuator with monitoring according to claim 1, is characterized in that: two logical light faces of described optical substrate have been coated with anti-reflection film.
3. the pluggable adjustable optical attenuator with monitoring according to claim 1, is characterized in that: described optical substrate plan view shape is parallelogram.
4. the pluggable adjustable optical attenuator with monitoring according to claim 1, is characterized in that: described input optical fibre is connected with light input adapter.
5. the pluggable adjustable optical attenuator with monitoring according to claim 1, is characterized in that: described output optical fibre is connected with light output joint.
6. the pluggable adjustable optical attenuator with monitoring as claimed in any of claims 1 to 5, is characterized in that: described circuit board is provided with connection-peg.
7. the pluggable adjustable optical attenuator with monitoring as claimed in any of claims 1 to 5, is characterized in that: described optical substrate is coated with spectro-film and replaces light splitting diaphragm.
8. the pluggable adjustable optical attenuator with monitoring as claimed in any of claims 1 to 5, is characterized in that: described optical substrate is coated with total reflection film and replaces total reflection diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520457247.6U CN204855860U (en) | 2015-06-30 | 2015-06-30 | But adjustable optical attenuator of plug and control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520457247.6U CN204855860U (en) | 2015-06-30 | 2015-06-30 | But adjustable optical attenuator of plug and control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204855860U true CN204855860U (en) | 2015-12-09 |
Family
ID=54746396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520457247.6U Withdrawn - After Issue CN204855860U (en) | 2015-06-30 | 2015-06-30 | But adjustable optical attenuator of plug and control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204855860U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104914505A (en) * | 2015-06-30 | 2015-09-16 | 北极光电(深圳)有限公司 | Pluggable and monitorable variable optical attenuator |
| CN106094113A (en) * | 2016-08-18 | 2016-11-09 | 桂林创研科技有限公司 | Adjustable optical attenuator |
| CN112737683A (en) * | 2019-10-14 | 2021-04-30 | 华为技术有限公司 | Power equalizer and adjusting method thereof |
-
2015
- 2015-06-30 CN CN201520457247.6U patent/CN204855860U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104914505A (en) * | 2015-06-30 | 2015-09-16 | 北极光电(深圳)有限公司 | Pluggable and monitorable variable optical attenuator |
| CN104914505B (en) * | 2015-06-30 | 2018-02-13 | 北极光电(深圳)有限公司 | A kind of pluggable and monitoring adjustable optical attenuator |
| CN106094113A (en) * | 2016-08-18 | 2016-11-09 | 桂林创研科技有限公司 | Adjustable optical attenuator |
| CN112737683A (en) * | 2019-10-14 | 2021-04-30 | 华为技术有限公司 | Power equalizer and adjusting method thereof |
| CN112737683B (en) * | 2019-10-14 | 2023-05-16 | 华为技术有限公司 | Power equalizer and adjusting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7654750B2 (en) | Bidirectional optical fiber link systems component couplers | |
| CN102597832B (en) | Expanded beam interface device and method for fabricating same | |
| CN102356573B (en) | Optical sending and receiving component and optical sending and receiving module | |
| CN103513351B (en) | Optical module | |
| CN204855860U (en) | But adjustable optical attenuator of plug and control | |
| CN105866904A (en) | Multichannel parallel optical receiving device | |
| CN102621641A (en) | Optical fiber connector | |
| EP3109681A1 (en) | Optical assembly and optical module | |
| TW201327892A (en) | Photoelectric converter | |
| WO2015021634A1 (en) | Optical assembly, built-in optical time domain reflectometer and optical network device | |
| CN106443907B (en) | A kind of ipsilateral optical device of transmitting-receiving | |
| CN209280994U (en) | A kind of the variable optical attenuation device and system of integrated light splitting detecting function | |
| CN103487899B (en) | Single-fiber bi-directional light receiving and emitting device | |
| CN105676377B (en) | A kind of multidirectional optical assembly and the method for obtaining multidirectional light | |
| CN211123390U (en) | Silicon optical wavelength division multiplexing optical engine | |
| US20140178017A1 (en) | Photoelectric conversion device and optical fiber coupling connector | |
| CN204009151U (en) | A kind of miniature passive optical-fiber network single-fiber bidirectional optical device that adopts the encapsulation of tank type | |
| CN203166943U (en) | Wavelength division multiplexing photoelectric device | |
| CN204758878U (en) | But adjustable optical attenuator that plug can be monitored | |
| CN104914505A (en) | Pluggable and monitorable variable optical attenuator | |
| CN208506305U (en) | A kind of multi-wavelength multiplex optical module | |
| CN207611173U (en) | A kind of high-speed light receiving unit of light path optimization design | |
| CN103185931A (en) | Photoelectric converter | |
| CN103281150B (en) | parallel wavelength division multiplexing optical time domain detector assembly | |
| CN212905556U (en) | Reflection-type integrated micro-optical device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151209 Effective date of abandoning: 20180213 |
|
| AV01 | Patent right actively abandoned |