METHOD AND DEVICE FOR COMPENSATING WAVELENGTH DRIFT

WIPO Patent Application WO/2018/036031

A1

The present invention relates to the technical field of optical communications and provides a method and a device for compensating a wavelength drift. The compensation method comprises: a burst control circuit generating a burst bias current and sending the burst bias current to a light emitting part and a trigger; the trigger converting the received burst bias current into burst DA data and sending the burst DA data to a combining circuit; and the combining circuit respectively receiving the burst DA data sent by the trigger and calibration DA data sent by an MCU, combining the burst DA data and the calibration DA data to obtain a combination signal, and sending the combination signal to a temperature control part. In the invention, the circuit method is used to compensate for the temperature change and the wavelength shift of the light emitting part in a burst, and the bias current of the burst signal is used as a compensation signal. Since the method does not require storage and the analysis of the MCU, and requires only a short time, compensation for temperature change and wavelength drift generated at a burst can be realized faster, such that time costs are low and link communications will not be influenced.

XUE ZHENFENG (CN)
FU YONGAN (CN)
SUN LIPING (CN)
ZHANG JUN (CN)
LV YAPING (CN)
GAO TING (CN)
LUO CHAO (CN)
WU CHAOQUN (CN)

PCT/CN2016/110320

March 01, 2018

December 16, 2016

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WUHAN TELECOMM DEVICES CO LTD (CN)

H04B10/572

CN102252982A	2011-11-23
CN103594923A	2014-02-19
US20090010435A1	2009-01-08
US20160111856A1	2016-04-21
EP1215832A2	2002-06-19

SHENZHEN AIDISEN INTELLECTUAL PROPERTY OFFICE (CN)

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