Method and apparatus for stabilizing multi-channel light wavelength

A multi-channel, optical wavelength technology, applied in the field of optical communication, can solve the problems of high cost, complex circuit, and many devices, and achieve the effect of fewer devices, high integration and simple circuit
CN1976262AActive Publication Date: 2007-06-06HISILICON OPTOELECTRONICS CO LIMITED
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HISILICON OPTOELECTRONICS CO LIMITED
Publication Date
2007-06-06

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Abstract

A method for stabilizing light wavelength of multi-channel includes generating the first detection signal with band different to multipath driving signal, superposing the first detection signal on multipath driving signal in sequence to obtain multipath light signal and a path of light general signal, carrying out wavelength detection on light general signal, picking up the second detection signal with band as the same with the first one in sequence from wavelength detection result and controlling light wavelength of relevant channel on multi-channel emitter as per obtained second detection signal.
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Description

technical field

[0001] The invention relates to the field of optical communication, in particular to a method and device for stabilizing multi-channel optical wavelengths. Background of the invention

[0002] With the continuous development of communication services, the communication network has more and more requirements for transmission bandwidth; the optical signal of multiple wavelengths is synthesized into one signal (wavelength division multiplexing) and transmitted in the optical fiber, which is a very effective way to increase the transmission bandwidth. Methods. However, in a wavelength division system, especially a dense wavelength division system (such as a wavelength division system with a wavelength interval of less than or equal to 50 GHz), since the wavelength interval between adjacent channels is very narrow, the wavelength of each optical signal of wavelength division multiplexing has a high accuracy and stability requirements.

[0003] According to the t...

Claims

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