CN201766596U - Device increasing transmission distance of optical supervisory channel - Google Patents
Device increasing transmission distance of optical supervisory channel Download PDFInfo
- Publication number
- CN201766596U CN201766596U CN200920351404XU CN200920351404U CN201766596U CN 201766596 U CN201766596 U CN 201766596U CN 200920351404X U CN200920351404X U CN 200920351404XU CN 200920351404 U CN200920351404 U CN 200920351404U CN 201766596 U CN201766596 U CN 201766596U
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- Prior art keywords
- light
- monitoring
- supervisory channel
- controlling channels
- optical
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Abstract
The utility model relates to a device increasing the transmission distance of an optical supervisory channel. The device comprises: an optical supervisory channel transmitter for transmitting the transmitting supervisory channel light in a transmitting part; an optical supervisory channel receiver for receiving the receiving supervisory channel light in a receiving part; and at least one supervisory channel optical amplifier that is arranged between the optical supervisory channel transmitter and the optical supervisory channel receiver and specially used for amplifying the supervisory channel light. As a device based on a module of the light amplification principle of semiconductors is added in wavelength division equipment to realize amplification of the supervisory channel light, the device can enlarge the transmission distance of the optical supervisory channel, reduce the requirement on the outgoing light power of the supervisory channel light transmitter and on the sensitivity of the receiver, thus reducing the overall configuration cost of the system.
Description
Technical field
The utility model relates to the Optical Supervisory Channel transmission, particularly improves the device of Optical Supervisory Channel transmission range.
Background technology
Optical Supervisory Channel in the wavelength-division system adopts 1510 wavelength to transmit, and this wavelength goes out outside the effective amplification range of EDFA amplifier, can not amplify with the amplifier on the main optical path, and transmission range will be seriously limited.In the system applies of some long span sections, owing to be subject to the transmission range of monitoring and controlling channels light, have to revise system configuration, on the other hand, in order to improve its transmission range, the optical sender of monitoring and controlling channels light and the equipment of receiver are proposed higher requirement, therefore caused the cost control difficulty of product.
Fig. 1 is the existing systems allocation plan, and the monitoring and controlling channels light of the Optical Supervisory Channel transmitter emission of emission side (being A website shown in Figure 1) and flashlight send to recipient's (being B website shown in Figure 1) via circuit light after merging via wave multiplexer.Be 1550nm flashlight with wavelength with optical splitter with the wavelength on the main optical path the recipient be that the monitoring and controlling channels light of 1510nm separates, monitoring and controlling channels light directly inserts the Optical Supervisory Channel receiver.The drawn line of arrow is an optical fiber among the figure, and the direction of arrow is optical transmission direction, and 1550nm and 1510nm refer to the light wavelength propagated in the light.
As the monitoring and controlling channels transmitter and receiver be single mode SFP optical module, the transmission range of present common single mode SFP module support is 150 kilometers, if the circuit optical fiber section of striding on the main optical path greater than 150 kilometers, monitoring and controlling channels can't use.
Summary of the invention
The utility model is at the limited problem of monitoring and controlling channels optical transmission distance, provides a kind of and improves the device of Optical Supervisory Channel transmission range by special amplification monitoring and controlling channels light, to solve the problem that above-mentioned prior art exists.
The device of raising Optical Supervisory Channel transmission range of the present utility model comprises:
Be positioned at the Optical Supervisory Channel transmitter of the monitoring of emission channel light of emission side;
Be positioned at the Optical Supervisory Channel receiver of recipient's reception monitoring and controlling channels light;
At least one that is arranged between described Optical Supervisory Channel transmitter and the described Optical Supervisory Channel receiver is exclusively used in the monitoring and controlling channels image intensifer that amplifies described monitoring and controlling channels light.
Wherein, the monitoring and controlling channels image intensifer can be arranged on emission side and/or recipient.
Be arranged at the monitoring and controlling channels image intensifer under the situation of emission side, the monitoring and controlling channels image intensifer is arranged between described monitoring and controlling channels image intensifer and the emission side's wave multiplexer and/or is arranged on after the described emission side wave multiplexer.
Be arranged at the monitoring and controlling channels image intensifer under recipient's the situation, the monitoring and controlling channels image intensifer is arranged between described recipient's channel-splitting filter and the Optical Supervisory Channel receiver and/or is arranged on before described recipient's channel-splitting filter.
Monitoring and controlling channels image intensifer of the present utility model comprises: amplify the light path part of monitoring and controlling channels light and the circuit part of the light amplification gain of regulating described light path part.Light path part comprises: first isolator that receives outside light inlet; Connect the semiconductor FP chamber of the described first isolator output so that light inlet is amplified; Connect described semiconductor EP chamber output with second optical isolator of output via the light of semiconductor FP chamber amplification.Circuit part comprises: the controller that calculates and export digital controlled signal according to gain control instruction; Connect described controller output end described digital controlled signal is converted to the digital to analog converter of analog voltage signal; And connect described digital to analog converter output and inject the voltage-controlled current source of giving semiconductor FP chamber behind the current signal so that analog voltage signal is converted to.
In addition, emission side also has a power amplifier that is used for amplifying signal light, and the wave multiplexer that will merge through amplifying signal light and monitoring and controlling channels light; Described recipient also has the channel-splitting filter that separates described flashlight and monitoring and controlling channels light, and the light preamplifier that amplifies the flashlight of telling from described channel-splitting filter.
In addition, in the time of before the monitoring and controlling channels image intensifer is arranged on pipe monitoring and controlling channels receiver, this monitoring and controlling channels image intensifer preferably is integrated in Optical Supervisory Channel receiver inside.
Owing in wave-division device, increase the device that the module of a based semiconductor light amplification principle is amplified Optical Supervisory Channel light, realize the monitoring and controlling channels light amplification, therefore the utlity model has following advantage:
1, increases the Optical Supervisory Channel transmission range;
2, reduce the requirement that the monitoring and controlling channels optical sender is gone out the demand and the receiver sensitivity of luminous power, thereby reduce the entire system deployment cost.
Below in conjunction with accompanying drawing the utility model is elaborated.
Description of drawings
Fig. 1 is a prior art system light path configuration schematic diagram;
Fig. 2 is system light path configuration principle figure of the present utility model;
Fig. 3 is an embodiment schematic diagram of the present utility model;
Fig. 4 is the schematic diagram of semiconductor optical amplifier internal structure of the present utility model.
Embodiment
Fig. 2 has shown the device of raising Optical Supervisory Channel transmission range of the present utility model, the drawn line of arrow is an optical fiber among the figure, the direction of arrow is optical transmission direction, 1550nm and 1510nm refer to the light wavelength propagated in the light, be to have added amplifying device on the basis of original configuration, this device can amplify separately the 1510nm Optical Supervisory Channel.
As shown in Figure 2, the device of raising Optical Supervisory Channel transmission range of the present utility model comprises:
Be positioned at the Optical Supervisory Channel transmitter of the monitoring of emission channel light of emission side's (being A website shown in Figure 2);
Be positioned at the Optical Supervisory Channel receiver of recipient's's (being B website shown in Figure 2) reception monitoring and controlling channels light;
At least one that is arranged between described Optical Supervisory Channel transmitter and the described Optical Supervisory Channel receiver is exclusively used in the monitoring and controlling channels image intensifer that amplifies described monitoring and controlling channels light, although Fig. 2 has shown 4 such amplifiers, but can when practical application, can be according to actual track Optical Fiber Transmission distance and cost budgeting flexible configuration, promptly can be used singly or in combination, such as an amplifier only is set.
As shown in Figure 2, the monitoring and controlling channels image intensifer can be arranged on emission side, so that emission side will send to described Optical Supervisory Channel receiver through the monitoring and controlling channels light that amplifies via circuit optical fiber, and/or be arranged on the recipient, so that the recipient delivers to described Optical Supervisory Channel receiver after the monitoring and controlling channels light via the circuit optical fiber transmission is amplified.
Be arranged at the monitoring and controlling channels image intensifer under the situation of emission side, as shown in Figure 2, the monitoring and controlling channels image intensifer is arranged between described monitoring and controlling channels image intensifer and the emission side's wave multiplexer and/or is arranged on after the described emission side wave multiplexer.
Be arranged at the monitoring and controlling channels image intensifer under recipient's the situation, as shown in Figure 2, the monitoring and controlling channels image intensifer is arranged between described recipient's channel-splitting filter and the Optical Supervisory Channel receiver and/or is arranged on before described recipient's channel-splitting filter.
Fig. 3 has shown the example that a monitoring and controlling channels image intensifer only is set the recipient, and monitoring and controlling channels amplifier and Optical Supervisory Channel receiver are integrated on the circuit board, receives after the monitoring and controlling channels light of 1510nm wavelength is amplified again.
Monitoring and controlling channels amplifier shown in Figure 3 is an optical semiconductor amplifying device, comprises (referring to Fig. 4): the light path part that is used to amplify monitoring and controlling channels light; Circuit part with the light amplification gain of regulating described light path part.
Fig. 4 has shown the internal structure of optical semiconductor amplifying device, and light path part comprises: first optical isolator that receives outside light inlet; To the semiconductor FP chamber that the light inlet from first isolator amplifies, the input in this semiconductor FP chamber connects the output of first optical isolator; Second optical isolator of the light of output through amplifying, the input of this second optical isolator connects the output in semiconductor FP chamber.Light path part is finished the conversion of current energy to light, realizes the amplification of signal.Outside light inlet is coupled to first isolator, 1, the second optical isolator 2 and external fiber coupling through optical fiber.The characteristics of isolator are unidirectional leaded lights, and promptly light can only be along the transmission of light inlet among the figure-bright dipping direction of arrow, and the light of reverse transfer is isolated, mutual interference mutually between the scattered light that prevents amplifier inside and the flashlight of outside.
Light path part is used for monitoring and controlling channels light is amplified, and circuit part then produces the electric current that is used to inject semiconductor FP (Fabry-P é rot) chamber.
First isolator 1, semiconductor FP chamber and second optical isolator 2 are connected by fiber waveguide successively, and fiber waveguide useable glass substrate or optical fiber are realized, as the optical transmission medium of amplifier inside.
Semiconductor FP chamber is as gain media, and the Conversion of energy that the electric current of circuit part is injected is a luminous energy, plays going into the effect of light amplification.
Circuit part comprises: the controller that calculates and export digital controlled signal according to gain control instruction; Convert the digital controlled signal of controller output the digital to analog converter of analog voltage signal to, wherein the input of digital to analog converter connects the input of controller; And inject the voltage-controlled current source of giving semiconductor FP chamber after converting the analog voltage signal of digital to analog converter output to current signal, the output of voltage-controlled current source input linking number weighted-voltage D/A converter wherein.
Circuit part is responsible for the gain control instruction of outside is converted into current signal, is injected into light path part.Realize the light amplification Gain Adjustable.Specifically, controller receives outside gain control instruction, calculates digital controlled signal and gives digital to analog converter; The digital signal that digital to analog converter is given controller is converted into analog voltage signal and gives voltage-controlled current source; Voltage-controlled current source converts different big or small voltage signals to current signal and injects to light path part.
Need to prove, semiconductor amplifying device shown in Figure 4 can be applied to shown in Figure 2 any one be used to amplify the amplifier of monitoring and controlling channels light.
Referring to Fig. 3, emission side also has one and is used to amplify the power amplifier that wavelength is the flashlight of 1550nm, and will be the wave multiplexer that the monitoring and controlling channels light of 1510nm merges through amplifying signal light and wavelength; Described recipient also has the channel-splitting filter of the monitoring and controlling channels light that flashlight that separate wavelengths is 1550nm and wavelength be 1510nm, and the light preamplifier that amplifies the flashlight of telling from described channel-splitting filter.
Although above the utility model is had been described in detail, the utility model is not limited thereto, and those skilled in the art of the present technique can carry out various modifications according to principle of the present utility model.Therefore, all modifications of being done according to the utility model principle all should be understood to fall into protection range of the present utility model.
Claims (9)
1. device that improves the Optical Supervisory Channel transmission range is characterized in that comprising:
Be positioned at the Optical Supervisory Channel transmitter of the monitoring of emission channel light of emission side;
Be positioned at the Optical Supervisory Channel receiver of recipient's reception monitoring and controlling channels light;
At least one that is arranged between described Optical Supervisory Channel transmitter and the described Optical Supervisory Channel receiver is exclusively used in the monitoring and controlling channels image intensifer that amplifies described monitoring and controlling channels light.
2. device according to claim 1 is characterized in that described monitoring and controlling channels image intensifer is arranged on emission side and/or recipient.
3. device according to claim 1 is characterized in that described monitoring and controlling channels image intensifer is arranged between described monitoring and controlling channels image intensifer and the emission side's wave multiplexer and/or is arranged on after the described emission side wave multiplexer.
4. according to claim 1 or 3 described devices, it is characterized in that described monitoring and controlling channels image intensifer is arranged between described recipient's channel-splitting filter and the Optical Supervisory Channel receiver and/or is arranged on before described recipient's channel-splitting filter.
5. require 4 described devices according to aforesaid right, it is characterized in that described monitoring and controlling channels image intensifer is integrated in Optical Supervisory Channel receiver inside.
6. device according to claim 1 is characterized in that described monitoring and controlling channels image intensifer comprises: amplify the light path part of monitoring and controlling channels light and the circuit part of the light amplification gain of regulating described light path part.
7. device according to claim 6 is characterized in that described light path part comprises:
Receive first isolator of outside light inlet;
Connect the semiconductor FP chamber of the described first isolator output so that light inlet is amplified;
Connect described semiconductor EP chamber output with second optical isolator of output via the light of semiconductor FP chamber amplification.
8. device according to claim 7 is characterized in that described circuit part comprises:
Calculate and export the controller of digital controlled signal according to gain control instruction;
Connect described controller output end described digital controlled signal is converted to the digital to analog converter of analog voltage signal; And
Connect described digital to analog converter output and after analog voltage signal being converted to current signal, inject the voltage-controlled current source of giving semiconductor FP chamber.
9. device according to claim 1 is characterized in that described emission side also has a power amplifier that is used for amplifying signal light, and the wave multiplexer that will merge through amplifying signal light and monitoring and controlling channels light; Described recipient also has the channel-splitting filter that separates described flashlight and monitoring and controlling channels light, and the light preamplifier that amplifies the flashlight of telling from described channel-splitting filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920351404XU CN201766596U (en) | 2009-12-31 | 2009-12-31 | Device increasing transmission distance of optical supervisory channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920351404XU CN201766596U (en) | 2009-12-31 | 2009-12-31 | Device increasing transmission distance of optical supervisory channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201766596U true CN201766596U (en) | 2011-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920351404XU Expired - Lifetime CN201766596U (en) | 2009-12-31 | 2009-12-31 | Device increasing transmission distance of optical supervisory channel |
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| Country | Link |
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| CN (1) | CN201766596U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059657A (en) * | 2016-05-20 | 2016-10-26 | 烽火通信科技股份有限公司 | Optical link protection system integrated with optical time domain reflectometer |
| 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 |
| CN109004988A (en) * | 2018-08-10 | 2018-12-14 | 无锡恒纳信息技术有限公司 | It is a kind of to inhibit self-oscillatory double semiconductor optical amplification systems |
| CN111162834A (en) * | 2018-11-07 | 2020-05-15 | 中国移动通信集团湖南有限公司 | Optical time domain reflectometer testing method and optical time domain reflectometer |
| CN112217568A (en) * | 2020-09-18 | 2021-01-12 | 武汉光迅科技股份有限公司 | Optical signal processing device and communication system |
-
2009
- 2009-12-31 CN CN200920351404XU patent/CN201766596U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059657A (en) * | 2016-05-20 | 2016-10-26 | 烽火通信科技股份有限公司 | Optical link protection system integrated with optical time domain reflectometer |
| 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 |
| CN109004988A (en) * | 2018-08-10 | 2018-12-14 | 无锡恒纳信息技术有限公司 | It is a kind of to inhibit self-oscillatory double semiconductor optical amplification systems |
| CN111162834A (en) * | 2018-11-07 | 2020-05-15 | 中国移动通信集团湖南有限公司 | Optical time domain reflectometer testing method and optical time domain reflectometer |
| CN112217568A (en) * | 2020-09-18 | 2021-01-12 | 武汉光迅科技股份有限公司 | Optical signal processing device and communication system |
| CN112217568B (en) * | 2020-09-18 | 2022-03-08 | 武汉光迅科技股份有限公司 | Optical signal processing device and communication system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110316 |