CURVED CONICAL PHOTONIC CRYSTAL LASER DEVICE, ARRAY, AND ARRAY LIGHT SOURCE GROUP

WIPO Patent Application WO/2019/075631

A1

A curved conical photonic crystal laser device, an array, and an array light source group. The curved conical photonic crystal laser device comprises a ridge waveguide part (3), a bent waveguide part (4) and a conical light amplification part (5) that are sequentially connected. The ridge waveguide part (3) is a straight waveguide, the bent waveguide part (4) has a radian, and the conical light amplification part (5) is gradually expanded in the light output direction. By introducing a photonic crystal structure and adjusting an intra-cavity mode, narrow vertical and horizontal divergence angles are achieved, and an optical collimation and compression system is simplified; by properly designing the waveguide structure, waveguide modes of different parts are matched, and multi-angle wide-range laser output can be achieved in the condition that a machine table does not need to be rotated; in addition, the range and precision of laser irradiation and scanning are improved, the angular resolution is adjustable and low, the structure is compact, the stability is high, costs are low, and the laser device has wide application prospects in the fields of laser ranging, laser imaging, laser radars and the like.

ZHENG WANHUA (CN)
ZHOU XUYAN (CN)
ZHANG XIAOFU (CN)
CHEN ZHONGHAO (CN)

PCT/CN2017/106496

April 25, 2019

October 17, 2017

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INST SEMICONDUCTORS CAS (CN)

H01S5/22; H01S5/34; H01S5/42

CN102088161A	2011-06-08
CN103346478A	2013-10-09
CN103219650A	2013-07-24
JPH1052941A	1998-02-24
CN105680320A	2016-06-15
CN107785776A	2018-03-09
CN106300017A	2017-01-04
CN105098006A	2015-11-25

CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)

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