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A Raman pump laser control device and control method thereof

A Raman pumping and control device technology, applied in the field of optical communication, achieves the effect of simple structure and easy implementation

Active Publication Date: 2016-03-02
GUANGXUN SCI & TECH WUHAN +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a kind of optical amplifier, the Raman fiber amplifier also needs to meet this new technical requirement, that is, it needs to realize the rapid control of the Raman fiber amplifier. In the known technology, there is no disclosure of related technology

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  • A Raman pump laser control device and control method thereof
  • A Raman pump laser control device and control method thereof
  • A Raman pump laser control device and control method thereof

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Embodiment Construction

[0066] In order to make it easier for those skilled in the art to understand and implement the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0067] In order to solve the above technical problems, the present invention provides a control device for a Raman pump laser with fast power response, and a control method for a Raman pump laser with fast power response based on the above control device.

[0068] The Raman pump laser control device provided by the present invention is as figure 1 As shown, it includes: wavelength division multiplexer 101 (WDM), optical splitter 102 (TAP), photodetector 103 (PD), analog amplification processing circuit 104 (AMP), analog-to-digital converter 105 (ADC), A fast Raman pump control unit 106 (PumpControlUnit), a digital-to-analog converter 107 (DAC), and a Raman pump laser 108 (PUMP).

[0069] Wherein, the wavelength division multiple...

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Abstract

A Raman pump laser control apparatus comprises a wavelength division multiplexer, a tap coupler, a photoelectric detector, an analog amplification processing circuit, an analog-to-digital converter, a fast Raman pump control unit, an digital-analog converter, and a Raman pump laser. The fast Raman pump control unit, after having known anticipated output light power of the Raman pump laser, based on a direct relationship between a current anticipated output light power of the Raman pump laser and input digital quantity that is needed by the digital-analog converter, uses a feedforward control mechanism so that actual output light power of the Raman pump laser fastly approximates the anticipated output light power thereof, and then synchronously combines with a feedback control mechanism so that the actual output light power of the Raman pump laser is precisely locked on the anticipated output light power, thereby achieving fast and precise control of the Raman pump laser.

Description

technical field [0001] The invention relates to the control of a Raman pump laser, belonging to the field of optical communication, in particular to a Raman pump laser control device with fast power response and a control method thereof. Background technique [0002] The surge of network data traffic and users' demands for high-speed network applications are leading optical communication networks to move towards ultra-broadband networks. Raman fiber amplifiers have been widely used in modern communication networks because of their "arbitrary" operating wavelength characteristics, broadband gain characteristics, distributed amplification characteristics, and the ability to use ordinary optical fibers as gain media. [0003] Major optical amplifier manufacturers have conducted extensive research on Raman fiber amplifier related technologies. For example, U.S. Patent No. 7,031,049 discloses a LossPoint detection method of a Raman fiber amplifier; U.S. Patent No. 7,916,384 disc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/131H01S3/30
CPCH01S3/06754H01S3/094003H01S3/094096H01S3/13013H01S3/1305H01S3/302H04B10/2916H01S3/2391
Inventor 熊涛付成鹏乐孟辉陶金涛景运瑜卜勤练余春平
Owner GUANGXUN SCI & TECH WUHAN
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