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Title:
COHERENCE-ADJUSTABLE SEMICONDUCTOR LASER DEVICE AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/082411
Kind Code:
A1
Abstract:
A coherence-adjustable semiconductor laser device and the use thereof. The semiconductor laser device comprises: a deformation resonant cavity, which comprises a first concentric cavity (101), a connection cavity (103) and a second concentric cavity (102); a few-mode electrode injection region (109), which is arranged on an upper surface of the deformation resonant cavity and is used for generating a high-coherence laser; multi-mode electrode injection regions (110, 111), which are arranged in a region, external to the few-mode electrode injection region (109), of the upper surface of the deformation resonant cavity and are used for generating low-coherence lasers; an isolation layer (105), which is arranged on a side wall of the deformation resonant cavity; a first metal layer (106), which is arranged on the isolation layer (105); a second metal layer (107), which is arranged on the first metal layer (106); and a third metal layer (108), which is arranged on the second metal layer (107). According to the coherence-adjustable semiconductor laser device, patterned electrodes are introduced to the upper surface of the cavity and are injected into separate regions, and the magnitudes of currents injected into different electrode regions are different, so that the laser device can achieve coherence adjustability.

Inventors:
ZHENG WANHUA (CN)
XU LINHAI (CN)
WANG YUFEI (CN)
JIA YUFEI (CN)
Application Number:
PCT/CN2020/122088
Publication Date:
April 28, 2022
Filing Date:
October 20, 2020
Export Citation:
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Assignee:
INST SEMICONDUCTORS CAS (CN)
International Classes:
H01S5/10
Foreign References:
CN109449758A2019-03-08
CN110265869A2019-09-20
CN112557346A2021-03-26
CN110289551A2019-09-27
EP2697858A22014-02-19
CN101539666A2009-09-23
CN110265870A2019-09-20
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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