CN203084238U - Integrated optical device - Google Patents
Integrated optical device Download PDFInfo
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- CN203084238U CN203084238U CN 201220654097 CN201220654097U CN203084238U CN 203084238 U CN203084238 U CN 203084238U CN 201220654097 CN201220654097 CN 201220654097 CN 201220654097 U CN201220654097 U CN 201220654097U CN 203084238 U CN203084238 U CN 203084238U
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- optical fiber
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- optical device
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Abstract
The utility model discloses an integrated optical device, comprising a double-core glass plug pin, a first collimating optical lens, an isolator core member, a gain flatness filter assembly, and a single-core collimator which are arranged inside an internally-sealed glass tube from left to right, and a metal externally-sealed tube which is arranged outside the internally-sealed glass tube. The first collimating optical lens is provided with a filter membrane which can transmit signal light and reflect pump light. The double-core glass plug pin comprises a first optical fiber, a second optical fiber, a double-core capillary tube, a first glass tube, a first metal tail tube, which are arranged sequentially form inside to outside. The single-core collimator comprises a third optical fiber, a second collimating optical lens, a single-core capillary tube, a second glass tube, a second metal tail tube, which are arranged sequentially form inside to outside. The first optical fiber, the second optical fiber, and the third optical fiber are optical fibers after being processing in a beam expanding mode. The integrated optical device simultaneously has functions of a wavelength division multiplexer, an isolator and a gain flatness filter; and the integrated optical device is simple in structure and small in size.
Description
Technical field
The utility model relates to a kind of optical device, particularly relates to a kind of integrated optical device, and this device possesses the effect of wavelength division multiplexer, isolator, gain flattening filter simultaneously, and the utility model belongs to communication field.
Background technology
Commercialization along with service layer 40G high-end router, the deployment of 40G wavelength-division system is also extremely urgent, 40Gbit/sWDM(Wavelength Division Multiplexing wavelength-division multiplex) light signal in the system is in long Distance Transmission, the light signal of each ITU-T channel all needs to amplify, thereby each ITU-T channel all needs a miniature fiber amplifier.Existing fiber amplifier section optical routing gain flattening filter, isolator, three separated light devices of wavelength division multiplexer are spliced, shown in the frame of broken lines among Fig. 1, exist the space of the defective 1 of following three aspects, three shared fiber amplifiers of separated light device bigger, and the fine space that need take fiber amplifier of dish is also big; 2, splicing is during light path, and three separated light device solder joints are more, and the solder joint loss ratio that adds up is bigger, thereby influences the noise figure of fiber amplifier; 3, in the light path splicing, adopt three separated light devices, production efficiency is not high.Therefore the fiber amplifier volume ratio of prior art is bigger, can not satisfy requirement of actual application.
Summary of the invention
In order to overcome the defective of prior art, the utility model provides a kind of integrated optical device that integrates wavelength-division multiplex, isolator, gain flattening filter function.
The technical scheme that the utility model adopted is:
A kind of integrated optical device, the metal external package pipe that includes twin-core glass contact pin, the first collimated light lens, isolator chipware, flat gain optical filter box, single core collimating apparatus of envelope glass tube inside in being set in turn in from left to right and be arranged on the interior envelope glass tube outside; The described first collimated light lens are provided with the filtering film of transmission signal light and reflected pump light; Described twin-core glass contact pin includes first optical fiber that sets gradually from inside to outside and second optical fiber, twin-core kapillary, first glass tube, the first metal tail pipe; Described single core collimating apparatus is set gradually from inside to outside and is formed by the 3rd optical fiber, the second collimated light lens, single core kapillary, second glass tube, the second metal tail pipe; Described first optical fiber, second optical fiber, the 3rd optical fiber are the optical fiber after handling through optical fiber beam expansion.
The fibre-optic mode field diameter of described first optical fiber, second optical fiber, the 3rd optical fiber is 9 microns-12 microns.
Described first optical fiber, second optical fiber, the 3rd fiber end face are provided with anti-reflection film.
Described first optical fiber, second optical fiber, the 3rd optical fiber employing numerical aperture are 0.16 980 optical fiber.
Described isolator chipware is by two birefringent wedge gusset plates, faraday's revolving fragment, and a PMD compensating plate, a magnet ring is formed.
Described flat gain optical filter box is made up of GFF optical filter and mirror holder, and its GFF optical filter is arranged on the mirror holder.
Light signal directivity between described first optical fiber (1-1) and the 3rd optical fiber (5-1) is greater than 60dB.
Integrated optical device of the present utility model has following advantage:
1. the package dimension of integrated optical device of the present utility model is little;
2. three kinds of functions of integrated optical device collection wavelength-division multiplex of the present utility model, isolator, gain flattening filter;
3. in the prior art, the fiber amplifier light path adopts by wavelength-division multiplex, isolator, three discrete device splicings of gain flattening filter, and adopt integrated optical device of the present utility model, can reduce by two solder joints in splicing, not only save the production time, and can reduce the fiber amplifier noise figure.
Description of drawings
Fig. 1 adopts the fiber amplifier light path synoptic diagram of prior art;
Fig. 2 is the fiber amplifier light path synoptic diagram that adopts the utility model integrated optical device technology;
Fig. 3 is the one-piece construction figure of the utility model integrated optical device;
Fig. 4 is the utility model twin-core glass pin junction composition;
Fig. 5 is the utility model list core collimator structure figure;
Fig. 6 is the utility model flat gain optical filter box structural drawing;
Wherein
1: twin-core glass contact pin; 2: the first collimated light lens;
3: the isolator chipware; 4: the flat gain optical filter box;
5: single core collimating apparatus; 6: interior envelope glass tube;
7: the metal external package pipe;
The 4-1:GFF optical filter; 4-2: mirror holder;
1-1: first optical fiber; 1-2: second optical fiber;
1-3: twin-core kapillary; 1-4: first glass tube;
1-5: the first metal tail pipe; 5-1: the 3rd optical fiber;
5-2: the second collimated light lens; 5-3: single core kapillary;
5-4: second glass tube; 5-5: the second metal tail pipe;
Embodiment
Provide specific embodiment below in conjunction with accompanying drawing, further specify integrated optical device of the present utility model and how to realize.
As shown in Figure 3, integrated optical device of the present utility model comprises twin-core glass contact pin 1, the first collimated light lens 2, isolator chipware 3, flat gain optical filter box 4, single core collimating apparatus 5, and is set gradually by left-to-right; And interior envelope glass tube 6, metal external package pipe 7 sets gradually from inside to outside.Described twin-core glass contact pin 1 comprises that the first optical fiber 1-1, the second optical fiber 1-2, twin-core kapillary 1-3, the first glass tube 1-4, the first metal tail pipe 1-5 form as shown in Figure 4.Described isolator chipware 3 is by two vanadic acid yttrium angle of wedge sheets, faraday's revolving fragment, and a PMD compensating plate, a magnet ring is formed, and it act as the isolator chipware and can make the light signal can only forward-propagating and the decay very big to the light signal generating of reverse transfer.Described single core collimating apparatus 5 comprises the 3rd optical fiber 5-1, the second collimated light lens 5-2 as shown in Figure 5, and single core kapillary 5-3, the second glass tube 5-4, the second metal tail pipe 5-5 set gradually composition from inside to outside.The described first collimated light lens 2 are provided with the filtering film of transmission signal light and reflected pump light, and the effect of this filter coating is the flashlight signal of a certain wave band of transmission, the pump light signals that reflects another wave band.The structure of flat gain optical filter box 4 as shown in Figure 6, flat gain optical filter box 4 is made up of GFF optical filter 4-1 and mirror holder 4-2, described GFF optical filter 4-1 is arranged on the mirror holder 4-2.The 3rd optical fiber 5-1 on the first optical fiber 1-1 on the twin-core glass contact pin 1, the second optical fiber 1-2 and the single core collimating apparatus 5 adopts 980 optical fiber, the numerical aperture of this 980 optical fiber is 0.16, and the first optical fiber 1-1, the second optical fiber 1-2, the 3rd optical fiber 5-1 need all to handle through the optical fiber beam expansion of optical fiber beam expansion machine, and the fibre-optic mode field diameter after optical fiber beam expansion is handled is 9 microns-12 microns.The first optical fiber 1-1, the second optical fiber 1-2, the 3rd optical fiber 5-1 end face are provided with anti-reflection film.
In conjunction with Fig. 3 the course of work of integrated optical device of the present utility model is specifically described: flashlight is imported from the first optical fiber 1-1, enter the first collimated light lens 2, behind the collimation and partial wave effect of flashlight through the first collimated light lens 2, enter isolator chipware 3 from the flashlight of a certain wave band of filtering film transmission, then enter second optical fiber 1-2 output from the pump light signals of another wave band of filter coating reflection.The flashlight of a certain wave band of transmission enters the flat gain optical filter box along isolator chipware 3 forward transmitted, the gain of flashlight through the flat gain optical filter box carry out filtering smooth after, enter single core collimating apparatus 5, behind the second collimated light lens 5-2 collimation through single core collimating apparatus 5, enter the 3rd optical fiber 5-1 output.
Integrated optical device of the present utility model is in the application of fiber amplifier, as shown in Figure 2.The fiber amplifier light path adopts by wavelength division multiplexer in the prior art, isolator, three discrete device splicings of gain flattening filter.Integrated optical device of the present utility model as shown in Figure 2, adopts integrated optical device of the present utility model in the application of fiber amplifier, can reduce by two solder joints in splicing, has not only saved the production time, and can reduce the fiber amplifier noise figure.
The manufacturing process of integrated optical device of the present utility model is specific as follows: the twin-core glass contact pin 1 and the first collimated light lens 2 reflect debugging, form reflection subassembly A.The debugging that is coupled of reflection subassembly A and single core collimating apparatus 5, then flat gain optical filter box 4 is enclosed within on the second collimated light lens 5-2 of single core collimating apparatus 5, rotate flat gain optical filter box 4, the error between test curve and aim curve meets the demands.Flat gain optical filter box 4 is bonded on single core collimating apparatus 5, forms assembly B.In being bonded between two parties, isolator chipware 3 in the envelope glass tube 6, forms assembly C.Reflection subassembly A and assembly B are carried out the transmission debugging, and handle component C is enclosed within the debugging that is coupled once more between reflection subassembly A and the assembly B again, forms the integrated optical device chipware.At last the integrated optical device chipware is encapsulated in and makes the related integrated optical device of the utility model in the metal external package pipe 7.
Though the utility model has at length illustrated and described relevant certain embodiments reference, those skilled in the art should be understood that, can make various changes in the form and details in not deviating from spirit and scope of the present utility model.These change all will fall into the desired protection domain of claim of the present utility model.
Claims (7)
1. an integrated optical device is characterized in that: include twin-core glass contact pin (1), the first collimated light lens (2), isolator chipware (3), flat gain optical filter box (4), single core collimating apparatus (5) of envelope glass tube (6) inside in being set in turn in from left to right and the metal external package pipe (7) that is arranged on interior envelope glass tube (6) outside; The described first collimated light lens (2) are provided with the filtering film of transmission signal light and reflected pump light; Described twin-core glass contact pin (1) includes first optical fiber (1-1) that sets gradually from inside to outside and second optical fiber (1-2), twin-core kapillary (1-3), first glass tube (1-4), the first metal tail pipe (1-5); Described single core collimating apparatus (5) is set gradually from inside to outside and is formed by the 3rd optical fiber (5-1), the second collimated light lens (5-2), single core kapillary (5-3), second glass tube (5-4), the second metal tail pipe (5-5); Described first optical fiber (1-1), second optical fiber (1-2), the 3rd optical fiber (5-1) are the optical fiber after handling through optical fiber beam expansion.
2. a kind of integrated optical device as claimed in claim 1 is characterized in that: the fibre-optic mode field diameter of described first optical fiber (1-1), second optical fiber (1-2), the 3rd optical fiber (5-1) is 9 microns-12 microns.
3. a kind of integrated optical device as claimed in claim 2 is characterized in that: described first optical fiber (1-1), second optical fiber (1-2), the 3rd optical fiber (5-1) end face are provided with anti-reflection film.
4. a kind of integrated optical device as claimed in claim 1 or 2 is characterized in that: described first optical fiber (1-1), second optical fiber (1-2), the 3rd optical fiber (5-1) employing numerical aperture are 0.16 980 optical fiber.
5. a kind of integrated optical device as claimed in claim 1 or 2 is characterized in that: described isolator chipware (3) is by two birefringent wedge gusset plates, faraday's revolving fragment, and a PMD compensating plate, a magnet ring is formed.
6. a kind of integrated optical device as claimed in claim 1 or 2 is characterized in that: described flat gain optical filter box (4) is made up of GFF optical filter (4-1) and mirror holder (4-2), and its GFF optical filter (4-1) is arranged on the mirror holder (4-2).
7. a kind of integrated optical device as claimed in claim 1 or 2 is characterized in that: the light signal directivity between described first optical fiber (1-1) and the 3rd optical fiber (5-1) is greater than 60dB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220654097 CN203084238U (en) | 2012-12-03 | 2012-12-03 | Integrated optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220654097 CN203084238U (en) | 2012-12-03 | 2012-12-03 | Integrated optical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203084238U true CN203084238U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220654097 Expired - Lifetime CN203084238U (en) | 2012-12-03 | 2012-12-03 | Integrated optical device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016201625A1 (en) * | 2015-06-16 | 2016-12-22 | 华为技术有限公司 | Collimating lens and optical module comprising same |
| CN106646753A (en) * | 2016-11-01 | 2017-05-10 | 广州奥鑫通讯设备有限公司 | Integrated gain flattening filter and debugging method |
| CN107918173A (en) * | 2017-12-13 | 2018-04-17 | 武汉电信器件有限公司 | A kind of temperature sensitivity compensating device |
| CN107991740A (en) * | 2017-12-14 | 2018-05-04 | 武汉电信器件有限公司 | A kind of integrated photodetector part |
| CN111628396A (en) * | 2020-05-08 | 2020-09-04 | 武汉光迅科技股份有限公司 | Optical amplifier |
-
2012
- 2012-12-03 CN CN 201220654097 patent/CN203084238U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016201625A1 (en) * | 2015-06-16 | 2016-12-22 | 华为技术有限公司 | Collimating lens and optical module comprising same |
| CN107209405A (en) * | 2015-06-16 | 2017-09-26 | 华为技术有限公司 | A kind of collimation lens and the optical module including it |
| US10613339B2 (en) | 2015-06-16 | 2020-04-07 | Huawei Technologies Co., Ltd. | Collimation lens and optical module |
| CN106646753A (en) * | 2016-11-01 | 2017-05-10 | 广州奥鑫通讯设备有限公司 | Integrated gain flattening filter and debugging method |
| CN107918173A (en) * | 2017-12-13 | 2018-04-17 | 武汉电信器件有限公司 | A kind of temperature sensitivity compensating device |
| CN107991740A (en) * | 2017-12-14 | 2018-05-04 | 武汉电信器件有限公司 | A kind of integrated photodetector part |
| CN111628396A (en) * | 2020-05-08 | 2020-09-04 | 武汉光迅科技股份有限公司 | Optical amplifier |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |
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| CX01 | Expiry of patent term |