Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
WAVELENGTH TUNABLE LASER
Document Type and Number:
WIPO Patent Application WO/2019/242555
Kind Code:
A1
Abstract:
The present application provides a wavelength tunable laser device, which can reduce the complexity of laser wavelength tuning. The laser comprises a reflective gain unit, an optical phase shifter, a coupler, and a passive filter unit array. An output port of the reflective gain unit is connected to an input port of the optical phase shifter. An output port of the optical phase shifter is connected to an input port of the coupler. A first output port of the coupler is connected to an input port of the passive filter unit array, and a second output port of the coupler is an output port of the laser. The passive filter unit array comprises a plurality of passive filter units. Any two of the plurality of passive filter units have different wavelength tuning ranges, and the wavelength of each filter unit is linearly adjustable. At the same moment, only one of the plurality of passive filter units is filtered.

Inventors:
LUO, Jun (Huawei Administration Building, Bantian Longgan, Shenzhen Guangdong 9, 518129, CN)
WANG, Qian (Huawei Administration Building, Bantian Longgan, Shenzhen Guangdong 9, 518129, CN)
BRENOT, Romain (Huawei Administration Building, Bantian Longgan, Shenzhen Guangdong 9, 518129, CN)
Application Number:
CN2019/091044
Publication Date:
December 26, 2019
Filing Date:
June 13, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HUAWEI TECHNOLOGIES CO., LTD. (Huawei Administration Building, Bantian Longgan, Shenzhen Guangdong 9, 518129, CN)
International Classes:
H01S3/10; H01S5/00
Foreign References:
TW200533024A2005-10-01
CN104966989A2015-10-07
CN106058621A2016-10-26
US20150355482A12015-12-10
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (Rm. 101, Building 3No. 68 Beiqing Road, Haidian District, Beijing 4, 100094, CN)
Download PDF: