The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2020
Filed:
Feb. 25, 2019
Wuhan Telecommunication Devices Co., Ltd., Wuhan, CN;
Zhenfeng Xue, Wuhan, CN;
Yongan Fu, Wuhan, CN;
Liping Sun, Wuhan, CN;
Jun Zhang, Wuhan, CN;
Yaping Lv, Wuhan, CN;
Ting Gao, Wuhan, CN;
Chao Luo, Wuhan, CN;
Chaoqun Wu, Wuhan, CN;
WUHAN TELECOMMUNICATION DEVICES CO., LTD., Wuhan, CN;
Abstract
A method and an apparatus for compensating for wavelength drift are disclosed. The method includes: generating, by a burst control circuit, a burst bias current; sending, by the burst control circuit, the burst bias current to a light emitting part and a trigger; converting, by the trigger, the received burst bias current into burst DA data; sending, by the trigger, the burst DA data to a synthesizer circuit; receiving, by the synthesizer circuit, the burst DA data sent by the trigger and the calibrated DA data sent by the MCU respectively; synthesizing, by the synthesizer circuit, the burst DA data and the calibrated DA data to obtain a synthesized signal; and sending, by the synthesizer circuit, the synthesized signal to a temperature control part.