CN108390245A - Microminiature fiber amplifier - Google Patents
Microminiature fiber amplifier Download PDFInfo
- Publication number
- CN108390245A CN108390245A CN201810401724.5A CN201810401724A CN108390245A CN 108390245 A CN108390245 A CN 108390245A CN 201810401724 A CN201810401724 A CN 201810401724A CN 108390245 A CN108390245 A CN 108390245A
- Authority
- CN
- China
- Prior art keywords
- isolator
- fiber
- diameter
- microminiature
- fiber amplifier
- 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.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 43
- 239000013307 optical fiber Substances 0.000 claims abstract description 28
- 230000003287 optical effect Effects 0.000 claims abstract description 16
- 230000004927 fusion Effects 0.000 claims description 7
- 238000005057 refrigeration Methods 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 4
- 230000005622 photoelectricity Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000571 coke Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06754—Fibre amplifiers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4207—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback
- G02B6/4208—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback using non-reciprocal elements or birefringent plates, i.e. quasi-isolators
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4215—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being wavelength selective optical elements, e.g. variable wavelength optical modules or wavelength lockers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention belongs to fiber optical amplifier technology fields, it is related to microminiature fiber amplifier, the input terminal that amplifier input optical signal passes through about 250 μm of the two-in-one device of intelligent acess, optical signal passes through the lens focus of two-in-one device inside successively, and the output end of the two-in-one device of intelligent acess by about 165 μm, it is connected again by about 165 μm of Er-doped fiber and the input terminal of isolator, optical signal passes through the lens focus inside isolator successively, and the output end of the intelligent acess isolator by about 250 μm, pass through the input terminal of about 250 μm of intelligent acess photodetector again, the output termination amplifier of photodetector exports optical signal；Pump laser is connect by about 165 μm of optical fiber with two-in-one device；Connection is all made of about 165 μm of optical fiber between two-in-one device, isolator and pump laser inside the fiber amplifier, saves space in this way, the appearance and size of fiber amplifier is made to become smaller.
Description
Technical field
The present invention relates to a kind of fiber amplifier, especially a kind of microminiature fiber amplifier belongs to fiber amplifier skill
Art field.
Background technology
The fast-developing requirement to Transmission system integrated level of modern communication is higher and higher, this is just to fiber amplifier shape
The requirement of volume is also just higher and higher, but the volume of fiber amplifier in the prior art cannot still meet in industry to transmission
The requirement of system high integration.
Invention content
The purpose of the present invention is being directed to problem of the prior art, a kind of microminiature fiber amplifier, the fiber amplifier are provided
Synthesizer inside device（I.e. two-in-one device）, to be all made of optical fiber be relatively thin straight to the connection between isolator and pump laser
Diameter is about 165 μm of optical fiber, and which offers a saving spaces so that the appearance and size of fiber amplifier becomes smaller.
To realize the above technical purpose, the technical scheme is that：Microminiature fiber amplifier, including light path devices and
Circuit devcie, the light path devices include two-in-one device, isolator and photodetector, and the circuit devcie includes printing electricity
Road plate and the pump laser above the printed circuit board, and light path devices are located at the top of printed circuit board, feature
It is, amplifier input optical signal passes through the input terminal of the two-in-one device of intelligent acess of 245 μm ~ 255 μm of diameter, the light letter
Number successively by the two-in-one device input lens focus of two-in-one device inside, two-in-one device output end lens are counter gathers
Coke, and the output end of the two-in-one device of intelligent acess by diameter less than 245 μm, the output end of the two-in-one device pass through
Diameter less than 245 μm Er-doped fiber and isolator input terminal connect, the optical signal successively pass through isolator inside every
From device input terminal lens focus, isolator output end lens are counter focuses, and are isolated by the intelligent acess of 245 μm ~ 255 μm of diameter
The output end of device, the output end of the isolator by the input terminal of the intelligent acess photodetector of 245 μm ~ 255 μm of diameter,
The output termination amplifier of the photodetector exports optical signal；The pump laser is less than 245 μm of light by diameter
It is fine to be connect with two-in-one device.
Further, pass through the junction of the sequentially connected two-in-one device of optical fiber, isolator and photodetector
It is light pricker fusion point, two optical fiber fusion welding points are placed in a twin-core heat-shrinkable T bush.
Further, the pump laser is using extra small pumping of 3 needles without refrigeration series, and is given by two-in-one device
Optical fiber provides light stimulus.
Further, the photodetector be band light splitting export photodetector, and diameter only have 1.75mm ~
1.85mm。
Further, the diameter of the two-in-one device and isolator is 2.1mm ~ 2.3mm.
Further, the appearance and size of the fiber amplifier is 45 mm × 15.5 mm × 7.5mm.
Further, isolator and WDM devices are integrated in the two-in-one device.
Compared with prior art, the present invention has the following advantages：
1）Synthesizer inside the fiber amplifier of the present invention（I.e. two-in-one device）, between isolator and pump laser
It is the optical fiber that thinner diameter is about 165 μm that connection, which is all made of optical fiber, and which offers a saving spaces so that the shape of fiber amplifier
Size becomes smaller；
2）The pump laser of the present invention is further saved space, optical fiber is made to put using extra small pumping of 3 needles without refrigeration series
The appearance and size smaller of big device；
3）The two-in-one device of photoelectric device and the diameter of isolator of the present invention is each about 2.2mm, the photoelectricity with light splitting output
Only there are about 1.8mm for diameter detector, and compared with existing amplifier, size is very small, make the appearance and size smaller of fiber amplifier；
4）Module interior space of the present invention closely, the appearance and size of fiber amplifier be only the mm of 45 mm × 15.5 ×
7.5mm。
Description of the drawings
Fig. 1 is fiber amplifier structural schematic diagram of the present invention.
Fig. 2 is the two-in-one device of the present invention or the structural schematic diagram of isolator interior len.
Reference sign：1-two-in-one device；11-two-in-one device input lens；12-two-in-one devices are defeated
Outlet lens；2-isolators；21-isolator input terminal lens；22-isolator output end lens；3-photodetectors；
4-pump lasers.
Specific implementation mode
With reference to specific drawings and examples, the invention will be further described.
Microminiature fiber amplifier, including light path devices and circuit devcie, the light path devices include two-in-one device 1,
Isolator 2 and photodetector 3, the circuit devcie include printed circuit board and are pumped above the printed circuit board sharp
Light device 4, and light path devices are located at the top of printed circuit board；
As depicted in figs. 1 and 2, the input that amplifier input optical signal passes through the two-in-one device of the intelligent acess of about 250 μm of diameter 1
End, the optical signal is focused by the two-in-one device input lens 11 inside two-in-one device 1 successively, two-in-one device is defeated
Outlet lens 12 instead focus, and the output end of the two-in-one device of intelligent acess 1 by about 165 μm of diameter, the two-in-one device
The output end of part 1 is connect by the Er-doped fiber of about 165 μm of diameter with the input terminal of isolator 2, and the optical signal passes through successively
Isolator input terminal lens 21 inside isolator 2 focus, isolator output end lens 22 instead focus, and by about 250 μ of diameter
The output end of the intelligent acess isolator 2 of m, the output end of the isolator 2 are visited by the intelligent acess photoelectricity of about 250 μm of diameter
The input terminal of device 3 is surveyed, the output termination amplifier of the photodetector 3 exports optical signal；The pump laser 4 is by straight
The optical fiber that about 165 μm of diameter is connect with two-in-one device 1, extra small pumping of 3 needles of use of the pump laser 4 without refrigeration series,
And light stimulus is provided to optical fiber by two-in-one device 1.
It is integrated with isolator and WDM devices in two-in-one device 1 of the present invention.
The appearance and size of fiber amplifier of the present invention be 45mm × 15.5 mm × 7.5mm, wherein two-in-one device 1 and every
Diameter from device 2 is each about 2.2mm, and photodetector 3 is the photodetector with light splitting output, and diameter only has about 1.8mm,
Internal synthesizer（That is two-in-one device 1）, to be all made of optical fiber be relatively thin to the connection between isolator 2 and pump laser 4
Diameter is about 165 μm of optical fiber, and which offers a saving spaces so that the pure smooth fiber amplifier of small size becomes possible to；Due to
About 250 μm of optical fiber that communication network outside fiber amplifier still uses mostly, if the input/output terminal of fiber amplifier is direct
Using about 165 μm of optical fiber, then it can cause excess loss because of mode field diameter difference, therefore, the present invention is by adjusting two-in-one device
Input terminal lens and output end lens focus length in part 1, it is about 250 μm of optical fiber to make the input of two-in-one device 1, and output is about
165 μm of optical fiber equally by adjusting input terminal lens in isolator 2 and output end lens focus length, make the defeated of isolator 2
Enter about 165 μm of optical fiber, output is about 250 μm of optical fiber, and such fusion point avoids light without 250 μm of optical fiber pair, 165 μm of optical fiber
Fine mode field diameter difference leads to how excess loss, lens focus length are adjusted to well-known to those skilled in the art, herein
It repeats no more；
In order to further realize the miniaturization of amplifier, invention also uses twin-core heat-shrinkable T bush, are sequentially connected by optical fiber
The two-in-one device 1, isolator 2 and photodetector 3 junction be light pricker fusion point, two optical fiber fusion welding points are set
In in a twin-core heat-shrinkable T bush, space can be saved to the greatest extent in this way.
Since the output power of amplifier of the present invention is not very big（Maximum supports 16dBm outputs）, and due to mould
The appearance and size of block only has 45 mm × 15.5 mm × 7.5mm, and 3 needles can only be selected subminiature and pumped without refrigeration series, due to
Fiber amplifier heating in normal work is smaller, and heat dissipation is convenient will not be problematic, can meet fiber amplifier reliability and want
It asks.
In printed circuit board（Pcb board）Design aspect, placed using the positive negative side's patch of device, as much as possible reduced
Pcb board size；Analog circuit, digital circuit are placed according to function Relatively centralized respectively in layout, avoid numerical portion to simulation
The interference effect of circuit especially avoids the detection on output signal light from influencing.
The extra small fiber amplifier interiors of products structure of the present invention uses Multi-layer design, places indirectly on a printed circuit
Light path devices, light path devices are glass-encapsulateds, without the structure of metal sleeve encapsulation, in this way with pcb board contact, will not be caused
Shorted devices on pcb board.
Structure of the invention is compact, and size is small, is suitable for the transmitting board of High Density Integration or receives board, disclosure satisfy that light
Fiber communication system backbone net, the demand for accessing net and cable television network.
The present invention and its embodiments have been described above, description is not limiting, shown in attached drawing also only
It is one of embodiments of the present invention, practical structures are not limited thereto.All in all if those skilled in the art
It is enlightened by it, without departing from the spirit of the invention, is not inventively designed similar with the technical solution
Frame mode and embodiment, are within the scope of protection of the invention.
Claims (7)
1. microminiature fiber amplifier, including light path devices and circuit devcie, the light path devices include two-in-one device（1）、
Isolator（2）And photodetector（3）, the circuit devcie includes printed circuit board and the pump above the printed circuit board
Pu laser（4）, and light path devices are located at the top of printed circuit board, which is characterized in that amplifier input optical signal passes through straight
The two-in-one device of intelligent acess of 245 μm ~ 255 μm of diameter（1）Input terminal, the optical signal successively pass through two-in-one device（1）
Internal two-in-one device input lens（11）It focuses, two-in-one device output end lens（12）It is anti-to focus, and pass through diameter
The two-in-one device of intelligent acess less than 245 μm（1）Output end, the two-in-one device（1）Output end it is small by diameter
In 245 μm of Er-doped fiber and isolator（2）Input terminal connection, the optical signal successively pass through isolator（2）It is internal every
From device input terminal lens（21）It focuses, isolator output end lens（22）It is anti-to focus, and by the optical fiber of 245 μm ~ 255 μm of diameter
Access isolator（2）Output end, the isolator（2）The output end intelligent acess photoelectricity that passes through 245 μm ~ 255 μm of diameter
Detector（3）Input terminal, the photodetector（3）Output termination amplifier export optical signal；The pump laser
（4）Pass through Er-doped fiber of the diameter less than 245 μm and two-in-one device（1）Connection.
2. microminiature fiber amplifier according to claim 1, it is characterised in that：Pass through optical fiber sequentially connected described two
Unify device（1）, isolator（2）And photodetector（3）Junction be light pricker fusion point, two optical fiber fusion welding points are placed in
In one twin-core heat-shrinkable T bush.
3. microminiature fiber amplifier according to claim 1, it is characterised in that：The pump laser（4）Using 3 needles
Extra small pumping without refrigeration series, and pass through two-in-one device（1）Light stimulus is provided to optical fiber.
4. microminiature fiber amplifier according to claim 1, it is characterised in that：The photodetector（3）For band point
The photodetector of light output, and diameter only has 1.75mm ~ 1.85mm.
5. microminiature fiber amplifier according to claim 1, it is characterised in that：The two-in-one device（1）And isolation
Device（2）Diameter be 2.1mm ~ 2.3mm.
6. microminiature fiber amplifier according to claim 1, it is characterised in that：The appearance and size of the fiber amplifier
For 45 mm × 15.5 mm × 7.5mm.
7. microminiature fiber amplifier according to claim 1, it is characterised in that：The two-in-one device（1）It is interior integrated
There are isolator and WDM devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810401724.5A CN108390245A (en) | 2018-04-28 | 2018-04-28 | Microminiature fiber amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810401724.5A CN108390245A (en) | 2018-04-28 | 2018-04-28 | Microminiature fiber amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108390245A true CN108390245A (en) | 2018-08-10 |
Family
ID=63065225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810401724.5A Pending CN108390245A (en) | 2018-04-28 | 2018-04-28 | Microminiature fiber amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108390245A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113759463A (en) * | 2020-06-04 | 2021-12-07 | 华为技术有限公司 | Optical device constituting optical fiber amplifier, and method of manufacturing the same |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0645679A (en) * | 1992-07-24 | 1994-02-18 | Oki Electric Ind Co Ltd | Optical fiber amplifier |
| KR19980057629A (en) * | 1996-12-30 | 1998-09-25 | 김광호 | Erbium-doped Fiber Amplifiers Using a Single Hybrid Passive |
| CA2273538A1 (en) * | 1998-06-04 | 1999-12-04 | Scientific-Atlanta, Inc. | Multi-functional optical isolator |
| US6088153A (en) * | 1997-06-26 | 2000-07-11 | Scientific-Atlanta, Inc. | Multi-functional optical isolator |
| CN2789786Y (en) * | 2005-06-10 | 2006-06-21 | 吴砺 | Optica fiber micro-lens type collimator |
| CN201780389U (en) * | 2010-05-21 | 2011-03-30 | 浙江合波光学科技有限公司 | Optical fiber device integrating filtering, isolation and mode filed matching functions |
| CN203037892U (en) * | 2012-12-25 | 2013-07-03 | 中国电子科技集团公司第二十三研究所 | High power optical fiber collimator |
| CN203324510U (en) * | 2013-07-10 | 2013-12-04 | 福州高意通讯有限公司 | Crystal type 1*2 polarization-maintaining coupler with isolation function |
| CN205157847U (en) * | 2015-11-12 | 2016-04-13 | 昂纳信息技术（深圳）有限公司 | Luminous power photoelectric detector that area keeps apart |
| CN205157830U (en) * | 2015-11-18 | 2016-04-13 | 昂纳信息技术（深圳）有限公司 | An optical separator |
| CN106329298A (en) * | 2016-10-25 | 2017-01-11 | 无锡市德科立光电子技术有限公司 | Array optical fiber amplifier |
| CN106981816A (en) * | 2017-05-31 | 2017-07-25 | 无锡市德科立光电子技术有限公司 | Small-sized pure smooth two-way amplifier |
| CN208284780U (en) * | 2018-04-28 | 2018-12-25 | 无锡市德科立光电子技术有限公司 | Microminiature fiber amplifier |
-
2018
- 2018-04-28 CN CN201810401724.5A patent/CN108390245A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0645679A (en) * | 1992-07-24 | 1994-02-18 | Oki Electric Ind Co Ltd | Optical fiber amplifier |
| KR19980057629A (en) * | 1996-12-30 | 1998-09-25 | 김광호 | Erbium-doped Fiber Amplifiers Using a Single Hybrid Passive |
| US6088153A (en) * | 1997-06-26 | 2000-07-11 | Scientific-Atlanta, Inc. | Multi-functional optical isolator |
| CA2273538A1 (en) * | 1998-06-04 | 1999-12-04 | Scientific-Atlanta, Inc. | Multi-functional optical isolator |
| CN2789786Y (en) * | 2005-06-10 | 2006-06-21 | 吴砺 | Optica fiber micro-lens type collimator |
| CN201780389U (en) * | 2010-05-21 | 2011-03-30 | 浙江合波光学科技有限公司 | Optical fiber device integrating filtering, isolation and mode filed matching functions |
| CN203037892U (en) * | 2012-12-25 | 2013-07-03 | 中国电子科技集团公司第二十三研究所 | High power optical fiber collimator |
| CN203324510U (en) * | 2013-07-10 | 2013-12-04 | 福州高意通讯有限公司 | Crystal type 1*2 polarization-maintaining coupler with isolation function |
| CN205157847U (en) * | 2015-11-12 | 2016-04-13 | 昂纳信息技术（深圳）有限公司 | Luminous power photoelectric detector that area keeps apart |
| CN205157830U (en) * | 2015-11-18 | 2016-04-13 | 昂纳信息技术（深圳）有限公司 | An optical separator |
| CN106329298A (en) * | 2016-10-25 | 2017-01-11 | 无锡市德科立光电子技术有限公司 | Array optical fiber amplifier |
| CN106981816A (en) * | 2017-05-31 | 2017-07-25 | 无锡市德科立光电子技术有限公司 | Small-sized pure smooth two-way amplifier |
| CN208284780U (en) * | 2018-04-28 | 2018-12-25 | 无锡市德科立光电子技术有限公司 | Microminiature fiber amplifier |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113759463A (en) * | 2020-06-04 | 2021-12-07 | 华为技术有限公司 | Optical device constituting optical fiber amplifier, and method of manufacturing the same |
| WO2021244298A1 (en) * | 2020-06-04 | 2021-12-09 | 华为技术有限公司 | Optical device constituting fiber amplifier, fiber amplifier, and manufacturing method |
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Application publication date: 20180810 |