CN203561804U - Optical path mixer - Google Patents
Optical path mixer Download PDFInfo
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- CN203561804U CN203561804U CN201320541421.6U CN201320541421U CN203561804U CN 203561804 U CN203561804 U CN 203561804U CN 201320541421 U CN201320541421 U CN 201320541421U CN 203561804 U CN203561804 U CN 203561804U
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- optical fiber
- light path
- path mixer
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- single optical
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Abstract
The utility model discloses an optical path mixer which belongs to the field of optical fiber communication equipment. The optical path mixer comprises the components of: an outer packaging housing, a first single-optical-fiber collimator assembly, an insulator assembly, a photoelectric detector, an optical splitter and a second single-optical-fiber collimator assembly; wherein the first single-optical-fiber collimator assembly, the insulator assembly, the photoelectric detector, the optical splitter and the second single-optical-fiber collimator assembly are successively arranged in the outer packaging housing. According to the optical path mixer provided by the utility model, because the insulator assembly, the photoelectric detector and the optical splitter are integrated in the outer packaging housing, the optical path mixer has the advantages of: compact structure, high insulation degree and small packaging dimension. The optical path mixer can be widely used in optical amplifier.
Description
Technical field
The utility model relates to the optical device field of optical fiber communication, particularly relates to a kind of light path mixer as light path integrated device.
Background technology
Along with the explosive increase of the data service take IP as representative, and Internet developing rapidly in the world, the demand of the network bandwidth constantly increases.In order to improve the transmission range of communication system, need to use a large amount of fiber amplifiers, as Erbium-Doped Fiber Amplifier (EDFA) (EDFA).In Erbium-Doped Fiber Amplifier (EDFA), need again to use optoisolator (ISO), light splitting coupler (TAP), photodetector (PD), optoisolator can prevent the impact of reflected light on laser instrument, photo-coupler and photodetector can take out a part and monitor from the light signal amplification, the signal light power after amplifying for gain control or demonstration.Erbium-Doped Fiber Amplifier (EDFA) can adopt forward direction according to practical application, backward or two directional pump, the isolator that traditional fiber amplifier backward pump is used, light splitting coupler and photodetector be by device cascade independently, formed respectively (as shown in Figure 1, in figure, a is isolator, b is light splitting coupler, and c is photodetector).The amplifier architecture complexity forming like this, volume is larger.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of light path mixer, multiple component integrations can have been reduced to device volume, thereby solves existing fiber amplifier complex structure and the large problem of volume.
For solving the problems of the technologies described above, the utility model provides a kind of light path mixer, comprising:
Outer package housing, is arranged in order the first single optical fiber calibrator assembly, isolator assemblies, photodetector, light splitting piece and the second single optical fiber calibrator assembly that are arranged in described outer package housing.
The beneficial effects of the utility model are: by outer package housing, optoisolator, light splitting piece and photodetector three are integrated and form an overall device, assembling is simple and package dimension is little.Prior art fiber amplifier complex structure and bulky problem have been solved.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The isolator of the cascade that Fig. 1 provides for prior art, light splitting coupler and photodetector schematic diagram;
The schematic diagram of the light path mixer that Fig. 2 provides for the utility model embodiment.
Embodiment
Below the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on embodiment of the present utility model, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to protection domain of the present utility model.
The utility model embodiment provides a kind of light path mixer, and as shown in Figure 1, this light path mixer comprises:
In above-mentioned light path mixer, the first single optical fiber calibrator assembly 1 comprises: encapsulation sleeve pipe 103, be arranged in order the single fiber head 101 and the collimation lens 102 that are arranged in described encapsulation sleeve pipe 103, and described single fiber head 101 is input end.
In above-mentioned light path mixer, the second single optical fiber calibrator assembly 5 comprises: encapsulating housing 503, be arranged in order the single fiber head 501 and the collimation lens 502 that are arranged in described encapsulating housing 503, and described single fiber head 501 is output terminal.
Further, the optical fiber head of single fiber head 101,501 in first and second single optical fiber calibrator assembly 1,5 and the end face of collimation lens 102,502 are all coated with anti-reflection film.Wherein, single fiber head 101,501 can consist of optical fiber and the ferrule that is sleeved on the outer fixed fiber of optical fiber.
In above-mentioned light path mixer, isolator assemblies 2 comprises: two birefringece crystals 202,203, are arranged on the faraday rotator 201 between described two birefringece crystals; And be sleeved on the magnet ring 204 outside described two birefringece crystals and faraday rotator.
Further the optical axis between the angle of wedge sheet of two birefringece crystals 202,203 in isolator assemblies 2 in angle of 45 degrees; Faraday rotator 201 is 45 degree to the rotation angle of polarized light plane of polarization; The face of sharing the same light of described each birefringece crystal 202,203, faraday rotator 201 all plates anti-reflection film.
In above-mentioned light path mixer, the upper end of light splitting piece 4 tilts to the first single optical fiber calibrator assembly 1 direction, lower end is near the second single optical fiber calibrator assembly 5, the angle between the lamellar body of light splitting piece 4 and the first single optical fiber calibrator assembly 1 and and the second single optical fiber calibrator assembly 5 between angle be 45 degree.
Above-mentioned light path mixer also comprises: second isolator assemblies (in section not shown) identical with described isolator assemblies structure, be arranged between described isolator assemblies 2 and described photodetector, and connect and be arranged in light path with described isolator assemblies.
Above-mentioned light path mixer, compact conformation, optoisolator, light splitting piece and photodetector three can be integrated form an overall device, there is volume little, advantage easy to assembly.
Below in conjunction with the drawings and specific embodiments, light path mixer of the present utility model is described further.
As shown in Figure 2, the light path mixer that the present embodiment provides comprises: the first single optical fiber calibrator assembly 1, isolator assemblies 2, photodetector 3, light splitting piece 4, the second single optical fiber calibrator assembly 5 and outer package housing 6; Wherein, the first single optical fiber calibrator assembly 1, isolator assemblies 2, photodetector 3, light splitting piece 4, the second single optical fiber calibrator assembly 5 are arranged in order and are arranged in outer package housing 6; The first single optical fiber calibrator assembly is by single fiber head 101, and the encapsulation sleeve pipe 103 of collimation lens 102 and encapsulation single fiber head 101 and collimation lens 102 forms; Isolator assemblies comprises two birefringece crystals 202,203, the faraday rotator 201 between two birefringece crystals and be sleeved on the magnet ring 204 outside two birefringece crystals and faraday rotator; In angle of 45 degrees, faraday rotator 201 is 45 degree to the rotation angle of polarized light plane of polarization to the optical axis of two birefringece crystal angle of wedge sheets 202 and 203 in isolator, two birefringece crystals 202,203, and the logical light face of faraday rotator 201 all plates anti-reflection film; The second single optical fiber calibrator assembly 5 is by single fiber head 501, and the encapsulating housing 503 of collimation lens 502 and encapsulation single fiber head 501 and collimation lens 502 forms; It is first, second single optical fiber calibrator assembly 1,5 that isolator assemblies 2, photodetector 3, light splitting piece 4 are sequentially arranged in two single optical fiber calibrator assemblies 1,5() between, light splitting piece 4 and collimating apparatus are in angle of 45 degrees.502 end face of the collimation lens 102 of the single fiber head 101 of the first single optical fiber calibrator assembly 1,501, the first single optical fiber calibrator assemblies 1 of the second single optical fiber calibrator assembly 5 and the second single optical fiber calibrator assembly 5 is all coated with anti-reflection film.
The light path mixer of the present embodiment can be placed in the rear end of Erbium-Doped Fiber Amplifier (EDFA) while using, its principle of work is: from the Er-doped fiber light through amplifying out, from the optical fiber of the single fiber head 101 of the first single optical fiber calibrator assembly 1, input, after collimation lens 102 collimations of the first single optical fiber calibrator assembly 1, incide isolator assemblies 2, the optical axis of two birefringece crystal angle of wedge sheets 202 and 203 of isolator assemblies 2 in angle of 45 degrees, faraday rotator 201 is 45 degree to the rotation angle of polarized light plane of polarization, the isolator assemblies 2 of this structure makes the light after collimation to arrive light splitting piece 4 by isolator assemblies, light splitting piece 4 makes small part light reflex to photodetector 3 to be used for monitoring the size of luminous power, most of luminous energy arrives the collimation lens 502 of the second single optical fiber calibrator assembly 5 through light splitting piece 4, be coupled in the optical fiber of single fiber head 501 of the second single optical fiber calibrator assembly 5 after collimation lens 502.Simultaneously, the light reflecting in light path enters into mixer through the optical fiber of the single fiber head 501 of the second single optical fiber calibrator assembly 5, after collimation lens 502 collimations of the second single optical fiber calibrator assembly 5, incide on the end face of light splitting piece 4, on the end face of light splitting piece 4, be coated with anti-reflection film, light can be seen through and arrive isolator assemblies 2, isolator assemblies 2 makes the light oppositely entering be divided into o light and e light, and o light and e light are orthogonal, make light cannot pass through isolator assemblies, thereby play, intercept reflected light arrival laser instrument, damage laser instrument.In order to increase the effect of obstruct, the second isolator assemblies can also be further set, the second isolator assemblies is arranged between isolator assemblies and light splitting piece, two isolator assemblies series connection are placed in light path, thereby reach the catoptrical effect of better obstruct.
The light path mixer structure compactness of this utility model embodiment, isolation is high, easily assembling, package dimension is little, can be widely used in image intensifer, is used in the space that can greatly save Erbium-Doped Fiber Amplifier (EDFA) in Erbium-Doped Fiber Amplifier (EDFA), reduces the size of amplifier.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (8)
1. a light path mixer, is characterized in that, comprising:
Outer package housing, is arranged in order the first single optical fiber calibrator assembly, isolator assemblies, photodetector, light splitting piece and the second single optical fiber calibrator assembly that are arranged in described outer package housing.
2. light path mixer as claimed in claim 1, is characterized in that, described the first single optical fiber calibrator assembly comprises:
Encapsulation sleeve pipe, is arranged in order the single fiber head and the collimation lens that are arranged in described encapsulation sleeve pipe, and described single fiber head is input end.
3. light path mixer as claimed in claim 1, is characterized in that, described the second single optical fiber calibrator assembly comprises:
Encapsulating housing, is arranged in order the single fiber head and the collimation lens that are arranged in described encapsulating housing, and described single fiber head is output terminal.
4. light path mixer as claimed in claim 2 or claim 3, is characterized in that, the optical fiber head of described single fiber head and the end face of collimation lens are all coated with anti-reflection film.
5. light path mixer as claimed in claim 1, is characterized in that, described isolator assemblies comprises:
Two birefringece crystals, are arranged on the faraday rotator between described two birefringece crystals;
And be sleeved on the magnet ring outside described two birefringece crystals and faraday rotator.
6. light path mixer as claimed in claim 5, is characterized in that, the optical axis between the angle of wedge sheet of described two birefringece crystals in angle of 45 degrees; Described faraday rotator is 45 degree to the rotation angle of polarized light plane of polarization; Described each birefringece crystal, the face of sharing the same light of faraday rotator all plates anti-reflection film.
7. the light path mixer as described in claims 1 to 3,5,6 any one, is characterized in that, the angle between the lamellar body of described light splitting piece and the first single optical fiber calibrator assembly and and the second single optical fiber calibrator assembly between angle be 45 degree.
8. the light path mixer as described in claims 1 to 3,5,6 any one, it is characterized in that, also comprise: second isolator assemblies identical with described isolator assemblies structure, be arranged between described isolator assemblies and described photodetector, connect and be arranged in light path with described isolator assemblies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320541421.6U CN203561804U (en) | 2013-09-02 | 2013-09-02 | Optical path mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320541421.6U CN203561804U (en) | 2013-09-02 | 2013-09-02 | Optical path mixer |
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| Publication Number | Publication Date |
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| CN203561804U true CN203561804U (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320541421.6U Expired - Lifetime CN203561804U (en) | 2013-09-02 | 2013-09-02 | Optical path mixer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105549164A (en) * | 2016-03-16 | 2016-05-04 | 珠海光库科技股份有限公司 | Integrated optical device |
| CN108089352A (en) * | 2018-01-11 | 2018-05-29 | 秦皇岛本征晶体科技有限公司 | Opto-electronic device |
| CN108873159A (en) * | 2018-06-19 | 2018-11-23 | 武汉电信器件有限公司 | A kind of integrated device for EDFA Erbium-Doped Fiber Amplifier |
| CN111077615A (en) * | 2019-12-31 | 2020-04-28 | 珠海市杰威光电科技有限公司 | Hybrid optoelectronic device |
| WO2020098300A1 (en) * | 2018-11-13 | 2020-05-22 | 英诺激光科技股份有限公司 | Mixed type photo-isolator |
| WO2020155997A1 (en) * | 2019-01-29 | 2020-08-06 | 深圳市杰普特光电股份有限公司 | Fiber laser |
| CN113009631A (en) * | 2021-03-02 | 2021-06-22 | 杭州奥创光子技术有限公司 | Multifunctional optical isolator, amplifier, laser and debugging method |
-
2013
- 2013-09-02 CN CN201320541421.6U patent/CN203561804U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105549164A (en) * | 2016-03-16 | 2016-05-04 | 珠海光库科技股份有限公司 | Integrated optical device |
| CN105549164B (en) * | 2016-03-16 | 2017-07-04 | 珠海光库科技股份有限公司 | Integrated optical device |
| CN108089352A (en) * | 2018-01-11 | 2018-05-29 | 秦皇岛本征晶体科技有限公司 | Opto-electronic device |
| CN108873159A (en) * | 2018-06-19 | 2018-11-23 | 武汉电信器件有限公司 | A kind of integrated device for EDFA Erbium-Doped Fiber Amplifier |
| CN108873159B (en) * | 2018-06-19 | 2021-01-01 | 武汉电信器件有限公司 | Integrated device for erbium-doped fiber amplifier |
| WO2020098300A1 (en) * | 2018-11-13 | 2020-05-22 | 英诺激光科技股份有限公司 | Mixed type photo-isolator |
| WO2020155997A1 (en) * | 2019-01-29 | 2020-08-06 | 深圳市杰普特光电股份有限公司 | Fiber laser |
| CN111077615A (en) * | 2019-12-31 | 2020-04-28 | 珠海市杰威光电科技有限公司 | Hybrid optoelectronic device |
| CN113009631A (en) * | 2021-03-02 | 2021-06-22 | 杭州奥创光子技术有限公司 | Multifunctional optical isolator, amplifier, laser and debugging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
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| CX01 | Expiry of patent term |