CN113991402B - Ultra-high bandwidth quasi-all-fiber amplifier - Google Patents
Ultra-high bandwidth quasi-all-fiber amplifier Download PDFInfo
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- CN113991402B CN113991402B CN202111270361.4A CN202111270361A CN113991402B CN 113991402 B CN113991402 B CN 113991402B CN 202111270361 A CN202111270361 A CN 202111270361A CN 113991402 B CN113991402 B CN 113991402B
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- 239000000835 fiber Substances 0.000 title claims abstract description 41
- 239000013307 optical fiber Substances 0.000 claims abstract description 95
- 230000008878 coupling Effects 0.000 claims abstract description 83
- 238000010168 coupling process Methods 0.000 claims abstract description 83
- 238000005859 coupling reaction Methods 0.000 claims abstract description 83
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 5
- 238000004891 communication Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- 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
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
-
- 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
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
- H01S3/094015—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre with pump light recycling, i.e. with reinjection of the unused pump light back into the fiber, e.g. by reflectors or circulators
-
- 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
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094049—Guiding of the pump light
Abstract
The invention belongs to the technical field of optical fiber amplifiers, and relates to an ultra-high bandwidth quasi-all-optical fiber amplifier which comprises a plurality of stages of coupling units and a plurality of stages of coupling filter units, wherein the stages of coupling units are sequentially connected through gain optical fibers, the stages of coupling filter units are sequentially connected through the gain optical fibers, and the last stage of coupling unit is connected with a first stage of coupling filter unit through the gain optical fibers. The invention can overcome the problem of element bandwidth limitation of the high-bandwidth and ultra-high-bandwidth optical fiber amplifier by utilizing the prior art and product conditions, and still maintains the advantages of no photoelectric conversion, easy connection with an optical fiber system, convenient installation and carrying, and the like of the all-fiber amplifier.
Description
Technical Field
The invention belongs to the technical field of optical fiber amplifiers, and relates to a quasi-all-optical fiber amplifier with ultra-high bandwidth.
Background
Amplifiers are an indispensable key component in the current optical fiber communication systems. The optical fiber amplifier has the advantages of no photoelectric conversion, easy connection with an optical fiber system, convenient installation and carrying, and the like, and becomes a focus of research and application. Among them, the erbium-doped fiber amplifier has excellent performance in the C-band, and has been widely used in the current wavelength division multiplexing system.
Bandwidth expansion is a solution to the problem of tight communication capacity in optical fiber communication. Under the condition that a transmission optical fiber line does not need to be paved again, the thinking can improve the use bandwidth of an optical fiber communication system from less than 30nm to more than 400nm through device upgrading, thereby realizing the effective utilization of the whole low-loss wave band, improving the transmission capacity by 10 times, and providing a larger utilization space for further adding space division multiplexing in the future. High bandwidth and ultra high bandwidth fiber amplifiers are key devices to achieve this idea.
The basic structure of the optical fiber amplifier comprises a pump source, a Wavelength Division Multiplexer (WDM) for combining the pump and the signals into the next-stage optical fiber, a gain optical fiber (such as erbium-doped optical fiber, thulium-doped optical fiber, bismuth-doped optical fiber and the like) for providing gain required by amplification, and elements such as an isolator, a filter and the like which are matched.
The high-bandwidth and ultra-high-bandwidth optical fiber amplifier cannot be directly obtained through translation of the conventional optical fiber amplifier technology, and one of the important problems is that key constituent elements of the conventional optical fiber amplifier have obvious bandwidth limitation and cannot meet the requirements of the high-bandwidth and ultra-high-bandwidth optical fiber amplifier.
Conventional fiber amplifiers typically employ WDM to combine signals with the pump required for amplification into a gain fiber, and there are two common modes of construction for WDM devices currently used in fiber amplifiers: the WDM of the common tapering method is low in price, and the signal bandwidth is usually only 30-50 nm; the filter type WDM has relatively high price, the bandwidth of the signal can be increased to 70-100 nm, but the distance from the filter type WDM to the whole wave band is still quite large.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides the ultra-high bandwidth quasi-all-fiber amplifier, which still maintains the advantages of no photoelectric conversion, easy connection with an optical fiber system and convenient installation and carrying, overcomes the bandwidth limitation of the existing optical fiber device, and can provide a new solution for the research and application of the high-bandwidth and ultra-high bandwidth optical fiber amplifier.
The technical scheme for solving the problems is as follows: the ultra-high bandwidth quasi-all-fiber amplifier is characterized in that:
comprises a plurality of stages of coupling units and a plurality of stages of coupling filter units, wherein the stages of coupling units are sequentially connected through gain optical fibers, the stages of coupling filter units are sequentially connected through the gain optical fibers,
the last stage coupling unit is connected with the first stage coupling filter unit through a gain fiber.
Further, each stage of coupling unit comprises a coupling assembly, wherein the coupling assembly comprises a transmission end connector support plate, a first light gathering device bracket and a plurality of first expandable structures;
the first expandable structure includes a first expandable frame, a first side connector support plate, a second fiber jumper, and a first dichroic mirror; a first dichroic mirror supported and fixed within the first expandable frame; the first side connector support plate is fixed on the side surface of the first expandable frame and used for adjusting and fixing a second optical fiber jumper with a movable connector to form an optical fiber access port of the pump;
the first expandable structures are sequentially connected;
the transmission end connector supporting plate is fixed at the transmission end of the first expandable frame and is used for adjusting and fixing a first optical fiber jumper with a movable connector to form an optical fiber access port of a signal;
the first light focusing device bracket is fixed at the output end of the last first expandable frame and is used for supporting and fixing the first light focusing device with the movable connector, converging the converged light and injecting the converged light into the connected gain optical fiber through the optical fiber movable connector.
Further, each stage of coupling filter unit comprises a coupling filter assembly, and the coupling filter assembly comprises a second condenser bracket, a third condenser bracket and a plurality of second expandable structures;
the second expandable structure comprises a second expandable frame, a second dichroic mirror, a second side connector support plate and a third optical fiber jumper, wherein the second expandable frame is used for supporting and fixing the second dichroic mirror, and the second dichroic mirror adopts a beam splitter access mode which is opposite to the first dichroic mirror access mode in the coupling component; the second side connector support plate is fixed on the side surface of the frame and used for adjusting and fixing a third optical fiber jumper with a movable connector to form an optical fiber access port of a reverse pump;
the plurality of second expandable structures are connected in sequence;
the second light focusing device bracket is fixed at the input end of the first and second expandable lens frames and is used for supporting and fixing the second light focusing device with the movable connector; the third light focusing device support is fixed at the output end of the last second expandable frame and used for supporting and fixing a third light focusing device with a movable connector, the second light focusing device is used for converging the reverse pumping passing through the second dichroic mirror and injecting a gain optical fiber connected with the second light focusing device through the movable connector, meanwhile, the signal output by the gain optical fiber is injected into the second dichroic mirror, and the third light focusing device is used for converging the amplified signal light passing through the second dichroic mirror and outputting the amplified signal light through the optical fiber movable connector.
Further, the structure of each stage of coupling assembly is identical, partially identical or completely different.
Further, the structures of the coupling filter components of each stage are identical, partially identical or completely different.
Further, the first light focusing device, the second light focusing device and the third light focusing device adopt an objective lens with a movable connector.
Further, the first light gathering device, the second light gathering device and the third light gathering device adopt collimating lenses with movable connectors.
The invention has the advantages that:
the structure of the invention can realize forward pumping, reverse pumping and bidirectional pumping of the amplifier. The invention can overcome the problem of element bandwidth limitation of the high-bandwidth and ultra-high-bandwidth optical fiber amplifier by utilizing the prior art and product conditions, and still maintains the advantages of no photoelectric conversion, easy connection with an optical fiber system, convenient installation and carrying, and the like of the all-fiber amplifier.
Drawings
Fig. 1 is a schematic diagram of an ultra-high bandwidth quasi-all-fiber amplifier according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an ultra-high bandwidth quasi-all-fiber amplifier according to a second embodiment of the present invention.
Wherein: 1. the coupling assembly, 21, first pump source, 22, second pump source, 3, first gain fiber, 4, coupling filter assembly, 5, first order coupling unit, 61, pump source group, 72, second gain fiber, 8, second order coupling unit, 11, first expandable mirror mount, 12, transmissive end connector support plate, 13, first side connector support plate, 14, first light gathering device support, 15, first dichroic mirror, 16, first optical fiber jumper, 17, second optical fiber jumper, 18, first light gathering device, 41, second expandable mirror mount, 42, second side connector support plate, 43, second light gathering device support, 44, third light gathering device support, 45, second dichroic mirror, 46, second light gathering device, 47, third light gathering device, 48, third optical fiber jumper.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
The invention provides the ultra-high bandwidth quasi-all-fiber amplifier, which still maintains the advantages of no photoelectric conversion, easy connection with an optical fiber system and convenient installation and carrying, overcomes the bandwidth limit of the current optical fiber device, and can provide a new solution for the research and application of the high-bandwidth and ultra-high bandwidth optical fiber amplifier.
The ultra-high bandwidth quasi-all optical fiber amplifier comprises a plurality of stages of coupling units and a plurality of stages of coupling filter units, wherein the stages of coupling units are sequentially connected through gain optical fibers, the stages of coupling filter units are sequentially connected through the gain optical fibers, and the last stage of coupling unit is connected with the first stage of coupling filter unit through the gain optical fibers.
Preferably, each stage of coupling unit comprises a coupling assembly 1, the coupling assembly 1 comprising a transmissive end connector support plate 12, a first light gathering device holder 14 and a number of first expandable structures.
Specifically, the first expandable structure includes a first expandable frame 11, a first side connector support plate 13, a second fiber jumper 17, and a first dichroic mirror 15; the first dichroic mirror 15 is supported and fixed inside the first expandable frame 11; the first side connector support plate 13 is fixed to the side of the first expandable frame 11 for adjusting and fixing the second fiber jumper 17 with the movable connector to form a fiber access port of the pump. The first expandable structures are sequentially connected; the transmission end connector support plate 12 is fixed at the transmission end of the first expandable frame 11 and is used for adjusting and fixing the first optical fiber jumper 16 with the movable connector to form an optical fiber access port of a signal; the first light focusing device bracket 14 is fixed at the output end of the last first expandable frame 11 and is used for supporting and fixing the first light focusing device 18 with the movable connector, converging the converged light and injecting the converged light into the connected gain optical fiber through the optical fiber movable connector.
Preferably, each stage of the coupling filter unit comprises a coupling filter assembly, and the coupling filter assembly comprises a second light collecting device bracket 43, a third light collecting device bracket 44 and a plurality of second expandable structures.
Specifically, the second expandable unit includes a second expandable frame 41, a second dichroic mirror 45, a second side connector support plate 42, and a third optical fiber jumper 48, where the second expandable frame 41 is used to support and fix the second dichroic mirror 45, and the second dichroic mirror 45 adopts a beam splitter access mode, which is opposite to the first dichroic mirror 15 access mode in the coupling assembly 1; the second side connector support plate 42 is fixed to the side of the frame 41 for adjusting and fixing the third fiber jumper 48 with the movable connector to form a fiber inlet of the reverse pump. The plurality of second expandable structures are connected in sequence; a second light collecting device bracket 43 is fixed at the input end of the first and second expandable frames 41 for supporting and fixing a second light collecting device 46 with a movable connector; the third light-concentrating device bracket 44 is fixed at the output end of the last second expandable frame 41, and is used for supporting and fixing a third light-concentrating device 47 with an active connector, the second light-concentrating device 46 is used for converging the reverse pump passing through the second dichroic mirror 45 and injecting a gain optical fiber connected with the second light-concentrating device through the active connector, meanwhile, the signal output by the gain optical fiber is injected into the second dichroic mirror 45, and the third light-concentrating device 47 converges the amplified signal light passing through the second dichroic mirror 45 and outputs the amplified signal light through the optical fiber active connector.
In the ultra-high bandwidth quasi-all fiber amplifier, the structures of the coupling components of each stage can be identical, partially identical or completely different, and the structures of the coupling filter components of each stage can also be identical, partially identical or completely different.
The number of stages of the coupling units and the coupling filter units can be increased according to actual requirements, the first expandable structure in each stage of the coupling units can be expanded according to requirements, and the second expandable structure in each stage of the coupling filter units can be expanded according to requirements.
Preferably, the first light focusing device 18, the second light focusing device 46 and the third light focusing device 47 are objective lenses with movable connectors.
Preferably, the first light condensing device 18, the second light condensing device 46 and the third light condensing device 47 adopt collimating mirrors with movable connectors.
Example 1
The ultra-high bandwidth quasi-all optical fiber amplifier structure provided by the embodiment of the invention is shown in fig. 1, and comprises a primary coupling unit and a primary coupling filter unit, wherein the primary coupling unit and the primary coupling filter unit are respectively provided with a first expandable structure and a second expandable structure.
Specifically, the amplifier is composed of a coupling component 1, a first pump source 21, a second pump source 22, a first gain fiber 3, and a coupling filter component 4
The coupling component 1 is used for combining the signal and the pump and injecting the combined signal and the pump into the gain fiber to provide a fiber interface connected with the signal, the pump and the gain fiber. The coupling assembly 1 comprises the following parts and functions: the first expandable frame 11 is used for supporting and fixing the first dichroic mirror 15; the transmission end connector support plate 12 is fixed at the transmission end of the lens frame 11 and is used for adjusting and fixing a first optical fiber jumper 16 with a movable connector to form an optical fiber access port of a signal; the first side connector supporting plate 13 is fixed on the side of the frame 11 and is used for adjusting and fixing the second optical fiber jumper 17 with the movable connector to form an optical fiber access port of the pump; the first light-focusing device bracket 14 is fixed at the output end of the lens frame 11, and is used for supporting and fixing a first light-focusing device 18 with a movable connector, converging the converged light and injecting the converged light into the first gain optical fiber 3 through the optical fiber movable connector.
The coupling filter component 4 is used for separating the amplified signal from the residual pump and providing a fiber interface for backward pumping and signal output, and comprises the following parts and functions: the second expandable frame 41 is used for supporting and fixing the second dichroic mirror 45, where the second dichroic mirror 45 adopts a beam splitter access mode, and is opposite to the access mode of the first dichroic mirror 15 in the coupling assembly; the second side connector support plate 42 is fixed on the side of the frame 41, and is used for adjusting and fixing a third optical fiber jumper 48 with a movable connector to form an optical fiber access port of a reverse pump; the second light focusing device support 43 and the third light focusing device support 44 are respectively fixed at the input end and the output end of the frame 11, and are used for supporting and fixing a second light focusing device 46 and a third light focusing device 47 with movable connectors, the second light focusing device 46 is used for converging the reverse pumping passing through the second dichroic mirror 45 and injecting the reverse pumping into the first gain optical fiber 3 through the movable connectors, meanwhile, the signal output by the first gain optical fiber 3 is injected into the second dichroic mirror 45, and the third light focusing device 47 is used for converging the amplified signal light passing through the second dichroic mirror 45 and outputting the amplified signal light through the optical fiber movable connectors.
Example two
The ultra-high bandwidth quasi-all optical fiber amplifier structure provided by the embodiment of the invention is shown in fig. 2, and comprises two stages of coupling units and a one-stage coupling filter assembly.
Specifically, the amplifier includes a primary coupling unit 5, a pump source group 61, a first gain fiber 3, a second gain fiber 72, a secondary coupling unit 8, and a coupling filter assembly 4.
The primary coupling unit 5 is used for combining the signal and the pump and injecting the combined signal and the pump into the gain fiber, providing a fiber interface connected with the signal, the pump and the gain fiber, and comprises the following parts and functions: the coupling component 1 of the primary coupling unit 5 has three first expansion structures, the primary coupling unit 5 combines the pump light input by the pump group 61 and the input signal and then injects the combined pump light into the first gain optical fiber 3, the pump group 61 comprises three first pump sources 21, then enters the secondary coupling unit 8, and the pump light input by the first pump sources 21 connected with the pump group is combined and then injected into the second gain optical fiber 72, wherein the secondary coupling unit 8 is used for combining the signal and the pump and then injecting the combined pump light into the gain optical fiber, and provides an optical fiber interface connected with the signal, the pump and the gain optical fiber, and the coupling component in the secondary coupling unit 8 has only one first expansion structure. The coupling filter assembly 4 is used to separate the amplified signal from the residual pump and provide a fiber interface for backward pumping and signal output.
The foregoing description is only exemplary embodiments of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention, or direct or indirect application in other related system fields are included in the scope of the present invention.
Claims (5)
1. An ultra-high bandwidth quasi-all fiber amplifier, characterized by:
comprises a plurality of stages of coupling units and a plurality of stages of coupling filter units, wherein the stages of coupling units are sequentially connected through gain optical fibers, the stages of coupling filter units are sequentially connected through the gain optical fibers,
the last stage coupling unit is connected with the first stage coupling filter unit through a gain fiber;
each stage of coupling unit comprises a coupling component (1), wherein the coupling component (1) comprises a transmission end connector supporting plate (12), a first light gathering device bracket (14) and a plurality of first expandable structures;
the first expandable structure comprises a first expandable frame (11), a first side connector support plate (13), a second optical fiber jumper (17) and a first dichroic mirror (15); a first dichroic mirror (15) is supported and fixed inside the first expandable frame (11); the first side connector supporting plate (13) is fixed on the side surface of the first expandable frame (11) and is used for adjusting and fixing a second optical fiber jumper wire (17) with a movable connector to form a pumped optical fiber access port;
the first expandable structures are sequentially connected;
the transmission end connector supporting plate (12) is fixed at the transmission end of the first expandable frame (11) and is used for adjusting and fixing a first optical fiber jumper wire (16) with a movable connector to form an optical fiber access port of a signal;
the first light focusing device bracket (14) is fixed at the output end of the last first expandable frame (11) and is used for supporting and fixing a first light focusing device (18) with a movable connector, converging the converged light and injecting the converged light into a connected gain optical fiber through the optical fiber movable connector;
each stage of coupling filter unit comprises a coupling filter assembly, and the coupling filter assembly comprises a second condenser bracket (43), a third condenser bracket (44) and a plurality of second expandable structures;
the second expandable structure comprises a second expandable frame (41), a second dichroic mirror (45), a second side connector support plate (42) and a third optical fiber jumper (48), wherein the second expandable frame (41) is used for supporting and fixing the second dichroic mirror (45), and the second dichroic mirror (45) adopts a beam splitter access mode which is opposite to the first dichroic mirror (15) access mode in the coupling assembly (1); the second side connector support plate (42) is fixed on the side surface of the second expandable frame (41) and is used for adjusting and fixing a third optical fiber jumper (48) with a movable connector to form a reverse pumping optical fiber access port;
the plurality of second expandable structures are connected in sequence;
a second light collecting device bracket (43) is fixed at the input end of the first and second expandable lens frames (41) and is used for supporting and fixing a second light collecting device (46) with a movable connector; the third light focusing device support (44) is fixed at the output end of the last second expandable frame (41) and is used for supporting and fixing a third light focusing device (47) with a movable connector, the second light focusing device (46) is used for converging the reverse pumping passing through the second dichroic mirror (45) and injecting a gain optical fiber connected with the second light focusing device through the movable connector, meanwhile, signals output by the gain optical fiber are injected into the second dichroic mirror (45), and the third light focusing device (47) converges amplified signal light passing through the second dichroic mirror (45) and outputs the amplified signal light through the optical fiber movable connector.
2. The ultra-high bandwidth quasi-all-fiber amplifier of claim 1, wherein:
the structure of each stage of coupling assembly is identical, partially identical or completely different.
3. An ultra-high bandwidth quasi-all-fiber amplifier according to claim 2, wherein:
the structure of each stage of coupling filter components is identical, partially identical or completely different.
4. An ultra high bandwidth quasi-all fiber amplifier according to claim 3, wherein:
the first condenser (18), the second condenser (46) and the third condenser (47) are objective lenses with movable connectors.
5. The ultra-high bandwidth quasi-all-fiber amplifier of claim 4, wherein:
the first light gathering device (18), the second light gathering device (46) and the third light gathering device (47) adopt collimating mirrors with movable connectors.
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| CN202111270361.4A CN113991402B (en) | 2021-10-29 | 2021-10-29 | Ultra-high bandwidth quasi-all-fiber amplifier |
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| CN202111270361.4A CN113991402B (en) | 2021-10-29 | 2021-10-29 | Ultra-high bandwidth quasi-all-fiber amplifier |
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| CN113991402B true CN113991402B (en) | 2023-10-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6985283B1 (en) * | 1998-06-16 | 2006-01-10 | Xtera Communications, Inc. | Fiber-optic compensation for dispersion, gain tilt, and band pump nonlinearity |
| CN110112638A (en) * | 2019-03-04 | 2019-08-09 | 电子科技大学 | A kind of high-gain low-noise erbium-doped fiber amplifier device |
| CN111029892A (en) * | 2019-12-29 | 2020-04-17 | 无锡市德科立光电子技术有限公司 | Pump light loop structure of optical fiber amplifier |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020159138A1 (en) * | 2001-04-30 | 2002-10-31 | Meiyu Zou | Access device for pump source in cascade erbium-doped fiber amplification |
| CN105981237B (en) * | 2014-01-22 | 2019-03-26 | 在本-古里安大学的B．G．内盖夫科技与应用有限公司 | The laser and amplifier based on optical fiber of pump light multipass |
| US9748725B2 (en) * | 2014-04-04 | 2017-08-29 | Advanced Optowave Corporation | Multipass fiber amplifiers |
| US11509110B2 (en) * | 2020-04-15 | 2022-11-22 | Cybel, LLC. | Broadband Ho-doped optical fiber amplifier |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6985283B1 (en) * | 1998-06-16 | 2006-01-10 | Xtera Communications, Inc. | Fiber-optic compensation for dispersion, gain tilt, and band pump nonlinearity |
| CN110112638A (en) * | 2019-03-04 | 2019-08-09 | 电子科技大学 | A kind of high-gain low-noise erbium-doped fiber amplifier device |
| CN111029892A (en) * | 2019-12-29 | 2020-04-17 | 无锡市德科立光电子技术有限公司 | Pump light loop structure of optical fiber amplifier |
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