CN203104452U - Main-and-standby-switching 1550 nm light amplifier with large power multipath output - Google Patents
Main-and-standby-switching 1550 nm light amplifier with large power multipath output Download PDFInfo
- Publication number
- CN203104452U CN203104452U CN 201220378593 CN201220378593U CN203104452U CN 203104452 U CN203104452 U CN 203104452U CN 201220378593 CN201220378593 CN 201220378593 CN 201220378593 U CN201220378593 U CN 201220378593U CN 203104452 U CN203104452 U CN 203104452U
- Authority
- CN
- China
- Prior art keywords
- optical splitter
- output
- optical
- light
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Optical Communication System (AREA)
- Lasers (AREA)
Abstract
A main-and-standby-switching 1550 nm light amplifier with large power multipath output comprises a first optical splitter connected with a first optical input signal and a second optical splitter connected with a second optical input signal. A detection output end of the first optical splitter is connected with a first optical power detection circuit. A detection output end of the second optical splitter is connected with a second optical power detection circuit. Main road output ends of the first optical splitter and the second optical splitter are connected with input ends of an optical switching circuit. An output end of the optical switching circuit is sequentially connected with a first isolator, an erbium- and ytterbium-doped optical fiber and a combiner. Input ends of the combiner are also connected with pump laser circuits. An output end of the combiner is sequentially connected with a second isolator and a third optical splitter. A detection output end of the third optical splitter is connected with a third optical power detection circuit. A main road output end of the third optical splitter is connected with an input end of a fourth optical splitter which is used for outputting multipath large power light output signals.
Description
Technical field
The utility model belongs to the cable TV field, relates to a kind of 1550nm image intensifer with high-power multi-path output of active and standby switching.
Background technology
The 1550nm fiber amplifier has obtained a large amount of uses as the visual plant of cable TV fiber optic transmission system in cable TV network.Often need several even tens s' fiber amplifier and light shifter to satisfy the demands in existing cable TV 1550nm fiber optic transmission system, so not only cost and maintenance cost height, equipment occupation space are big, and the stability of the network operation is not high.
Summary of the invention
For solving in the cable TV 1550nm fiber optic transmission system, equipment such as image intensifer are many, the problem that cost and maintenance cost are high, the utility model provides a kind of maximum output gross power can reach 37dBm (5W), light output way can be 2,4,8,16,32, the 64 tunnel respectively, significantly reduces the device space, and input reduces cost, increase the 1550nm image intensifer of the high-power multi-path output with active and standby switching of reliability
The technical solution adopted in the utility model is:
1550nm image intensifer with high-power multi-path output of active and standby switching, it is characterized in that: comprise first optical splitter that is connected with first via light input signal, second optical splitter that is connected with the second road light input signal, the detection output of described first optical splitter is connected with the first luminous power testing circuit, the detection output of described second optical splitter is connected with the second luminous power testing circuit, and the main road output of first optical splitter, second optical splitter is connected with the input of light commutation circuit respectively; The output of described smooth commutation circuit is connected with the input of first isolator, the output of described first isolator is connected with the input of the er-doped ytterbium optical fiber that is used for light signal is amplified, the output of described er-doped ytterbium optical fiber is connected with the input that is used for the bundling device that pump light and flashlight is compound, the input of described bundling device also is connected with the pump laser circuit, the output of described bundling device is connected with the input of second isolator, the output of described second isolator is connected with the input of the 3rd optical splitter, the detection output of described the 3rd optical splitter is connected with the 3rd luminous power testing circuit, and the main road output of the 3rd optical splitter is connected with the input of the 4th optical splitter that is used to export the multi-path large power optical output signal.
Further, described pump laser circuit comprises the first pump laser circuit and the second pump laser circuit.
Further, the output way of the optical output signal of described the 4th optical splitter is 2,4,8,16,32 or 64 the tunnel.
Further, the light input signal of the described first via light input signal and the second road light input signal is the light input signal of 1550nm.
Further, the splitting ratio of described first optical splitter, second optical splitter is 97:3, and the splitting ratio of described the 3rd optical splitter is 99:1.
First optical splitter of the present utility model and second optical splitter receive the light input signal of the first via light input signal and the second road light input signal respectively, promptly receive the light input signal of active and standby two road 1550nm, the detection output of first optical splitter and second optical splitter is measured the luminous power of two-way input signal respectively by first, second luminous power testing circuit.Operate as normal time commutation circuit is communicated with first optical splitter, receives the main road light signal, and when the main road light signal was undesired, the light commutation circuit was communicated with second optical splitter, receives to be equipped with the road light signal.Light signal is sent into er-doped ytterbium optical fiber by first isolator, and pump light directly amplifies the light signal of input by er-doped ytterbium optical fiber, the gain of light is provided, and is undertaken pump light and flashlight compound by bundling device.Light signal after the amplification is sent into the 3rd optical splitter by second isolator, and the 3rd luminous power testing circuit is measured the luminous power of the light signal after amplifying, and the 4th optical splitter is divided into light signal 2,4,8,16,32,64 tunnel outputs as required.
The beneficial effects of the utility model are: the maximum output of unit gross power can reach 37dBm (5W), an equipment just can be replaced several fiber amplifier and the light shifters that lead to tens Daeporis of original needs, can save cost and maintenance cost significantly, improve the stability of the network operation.
Description of drawings
Fig. 1 is a theory diagram of the present utility model.
Embodiment
Come the utility model is further specified below in conjunction with specific embodiment, but the utility model is not confined to these embodiments.One skilled in the art would recognize that the utility model contained in claims scope all alternatives, improvement project and the equivalents that may comprise.
With reference to Fig. 1,1550nm image intensifer with high-power multi-path output of active and standby switching, comprise first optical splitter that is connected with first via light input signal, second optical splitter that is connected with the second road light input signal, the detection output of described first optical splitter is connected with the first luminous power testing circuit, the detection output of described second optical splitter is connected with the second luminous power testing circuit, and the main road output of first optical splitter, second optical splitter is connected with the input of light commutation circuit respectively; The output of described smooth commutation circuit is connected with the input of first isolator, the output of described first isolator is connected with the input of the er-doped ytterbium optical fiber that is used for light signal is amplified, the output of described er-doped ytterbium optical fiber is connected with the input that is used for the bundling device that pump light and flashlight is compound, the input of described bundling device also is connected with the pump laser circuit, the output of described bundling device is connected with the input of second isolator, the output of described second isolator is connected with the input of the 3rd optical splitter, the detection output of described the 3rd optical splitter is connected with the 3rd luminous power testing circuit, and the main road output of the 3rd optical splitter is connected with the input of the 4th optical splitter that is used to export the multi-path large power optical output signal.
Described pump laser circuit comprises the first pump laser circuit and the second pump laser circuit.
The output way of the optical output signal of described the 4th optical splitter is 2,4,8,16,32 or 64 the tunnel.
The light input signal of the described first via light input signal and the second road light input signal is the light input signal of 1550nm.
The splitting ratio of described first optical splitter, second optical splitter is 97:3, and the splitting ratio of described the 3rd optical splitter is 99:1.
First optical splitter of the present utility model and second optical splitter receive the light input signal of the first via light input signal and the second road light input signal respectively, promptly receive the light input signal of active and standby two road 1550nm, the detection output of first optical splitter and second optical splitter is measured the luminous power of two-way input signal respectively by first, second luminous power testing circuit.Operate as normal time commutation circuit is communicated with first optical splitter, receives the main road light signal, and when the main road light signal was undesired, the light commutation circuit was communicated with second optical splitter, receives to be equipped with the road light signal.Light signal is sent into er-doped ytterbium optical fiber by first isolator, and pump light directly amplifies the light signal of input by er-doped ytterbium optical fiber, the gain of light is provided, and is undertaken pump light and flashlight compound by bundling device.Light signal after the amplification is sent into the 3rd optical splitter by second isolator, and the 3rd luminous power testing circuit is measured the luminous power of the light signal after amplifying, and the 4th optical splitter is divided into light signal 2,4,8,16,32,64 tunnel outputs as required.
First optical splitter in the present embodiment, the splitting ratio of second optical splitter are 97:3, wherein 3% light signal is sent into the first luminous power testing circuit, the second luminous power testing circuit respectively, by the luminous power of highly sensitive PIN pipe and high-operational amplifier circuit measuring two-way input optical signal.The light shifter of light commutation circuit adopts the SUN-FSW-1 X 2T of the grand photoelectricity of light, when the main road light signal of setting meets in the normal range of operation of setting, the light commutation circuit is communicated with the main road light signal, when the main road light signal did not meet the normal range of operation of setting, the light commutation circuit was communicated with and is equipped with the road light signal.Pump laser in the first pump laser circuit and the second pump laser circuit all adopts the multi-mode pump iPLD-9 series of IPG company, pump light directly amplifies input optical signal by er-doped ytterbium optical fiber, the gain of light is provided, and wherein er-doped ytterbium optical fiber adopts the erbium-ytterbium co-doped fiber of Nufern company.The effect of bundling device is that pump light and flashlight are carried out is compound, and bundling device adopts the high-power multimode pumping+signal light combiner of (N+1) X1 of ITF company.The splitting ratio of the 3rd optical splitter is 99:1, and wherein 1% light signal is sent into the 3rd luminous power testing circuit, the luminous power of light signal after amplifying by highly sensitive PIN pipe and high-operational amplifier circuit measuring.The 4th optical splitter adopts the optical splitter of 1 X, 2,1 X, 4,1 X, 8,1 X, 16,1 X, 32,1 X 64 as required, and light signal is divided into 2,4,8,16,32,64 tunnel outputs.
Claims (5)
1. the 1550nm image intensifer that has the high-power multi-path output of active and standby switching, it is characterized in that: comprise first optical splitter that is connected with first via light input signal, second optical splitter that is connected with the second road light input signal, the detection output of described first optical splitter is connected with the first luminous power testing circuit, the detection output of described second optical splitter is connected with the second luminous power testing circuit, and the main road output of first optical splitter, second optical splitter is connected with the input of light commutation circuit respectively; The output of described smooth commutation circuit is connected with the input of first isolator, the output of described first isolator is connected with the input of the er-doped ytterbium optical fiber that is used for light signal is amplified, the output of described er-doped ytterbium optical fiber is connected with the input that is used for the bundling device that pump light and flashlight is compound, the input of described bundling device also is connected with the pump laser circuit, the output of described bundling device is connected with the input of second isolator, the output of described second isolator is connected with the input of the 3rd optical splitter, the detection output of described the 3rd optical splitter is connected with the 3rd luminous power testing circuit, and the main road output of the 3rd optical splitter is connected with the input of the 4th optical splitter that is used to export the multi-path large power optical output signal.
2. the 1550nm image intensifer with high-power multi-path output of active and standby switching according to claim 1, it is characterized in that: described pump laser circuit comprises the first pump laser circuit and the second pump laser circuit.
3. the 1550nm image intensifer with high-power multi-path output of active and standby switching according to claim 1 and 2, it is characterized in that: the output way of the optical output signal of described the 4th optical splitter is 2,4,8,16,32 or 64 the tunnel.
4. the 1550nm image intensifer with high-power multi-path output of active and standby switching according to claim 3, it is characterized in that: the light input signal of the described first via light input signal and the second road light input signal is the light input signal of 1550nm.
5. the 1550nm image intensifer with high-power multi-path output of active and standby switching according to claim 4, it is characterized in that: the splitting ratio of described first optical splitter, second optical splitter is 97:3, the splitting ratio of described the 3rd optical splitter is 99:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220378593 CN203104452U (en) | 2012-08-01 | 2012-08-01 | Main-and-standby-switching 1550 nm light amplifier with large power multipath output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220378593 CN203104452U (en) | 2012-08-01 | 2012-08-01 | Main-and-standby-switching 1550 nm light amplifier with large power multipath output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203104452U true CN203104452U (en) | 2013-07-31 |
Family
ID=48855824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220378593 Expired - Lifetime CN203104452U (en) | 2012-08-01 | 2012-08-01 | Main-and-standby-switching 1550 nm light amplifier with large power multipath output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203104452U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401608A (en) * | 2013-08-12 | 2013-11-20 | 桂林铭瑶电子科技有限公司 | Optical fiber communication network system with embedded luminous power detection device |
-
2012
- 2012-08-01 CN CN 201220378593 patent/CN203104452U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401608A (en) * | 2013-08-12 | 2013-11-20 | 桂林铭瑶电子科技有限公司 | Optical fiber communication network system with embedded luminous power detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202217909U (en) | Single-pumping double-stage amplification erbium-doped optical fiber amplifier | |
| CN103199420A (en) | Single-fiber simple-oscillator kilowatt-grade all-fiber laser | |
| CN103311786B (en) | A kind of erbium-ytterbium co-doped fiber amplifier suppressing Yb-ASE | |
| CN102263358A (en) | High-power broadband superfluorescence light source in all-fiber structure | |
| CN202512332U (en) | Full-optical fiber ultrashort laser pulse amplifier | |
| CN201541049U (en) | Two-way transmission optical amplifier | |
| CN108493748B (en) | ytterbium-Raman mixed gain random fiber laser based on fiber core pumping | |
| CN203104452U (en) | Main-and-standby-switching 1550 nm light amplifier with large power multipath output | |
| CN203690697U (en) | High-power optical fiber laser | |
| CN205081351U (en) | High -power L wave band erbium doped fiber amplifier of all optical fibre structure | |
| CN104852261A (en) | High-power all-fiber MOPA structure superfluorescence fiber light source based on tandem pumping | |
| CN205282872U (en) | Controllable single channel erbium doped fiber amplifier of power | |
| CN209963478U (en) | High-power optical fiber amplifier with two-stage pumping redundancy protection | |
| CN203218699U (en) | Single-fiber single-vibration kilowatt magnitude all-fiber laser | |
| CN201550115U (en) | Optical time domain reflectometer based on bidirectionally-amplified erbium-doped fiber amplifier | |
| CN204497558U (en) | The Erbium-Doped Fiber Amplifier of pump power high efficiency conversion | |
| CN202183550U (en) | Pulse optical fiber amplifier | |
| CN202550967U (en) | L-waveband 50W power amplifier | |
| CN210668978U (en) | Low-noise erbium-doped optical fiber amplifier optical path structure | |
| CN106340795A (en) | Erbium doped fiber amplifier | |
| CN207398577U (en) | A kind of fiber amplifier of pump light source and its composition | |
| CN211377172U (en) | Pump light loop structure of optical fiber amplifier | |
| CN210111283U (en) | Single wave input wavelength determining device in erbium-doped fiber amplifier | |
| CN204243445U (en) | A kind of high power narrow linewidth linearly polarized light fibre laser | |
| CN204651672U (en) | Based on the high power all-fiber MOPA structure superfluorescent fiber sources with band pumping |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |