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1. (WO2014201964) RING CAVITY DEVICE AND MANUFACTURING METHOD THEREFOR

Pub. No.:    WO/2014/201964    International Application No.:    PCT/CN2014/079665
Publication Date: Thu Dec 25 00:59:59 CET 2014 International Filing Date: Thu Jun 12 01:59:59 CEST 2014
IPC: H01S 5/10
Applicants: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS OF CHINESE ACADEMY OF SCIENCE
中国科学院苏州纳米技术与纳米仿生研究所
Inventors: ZHANG, Ruiying
张瑞英
Title: RING CAVITY DEVICE AND MANUFACTURING METHOD THEREFOR
Abstract:
A ring cavity device and a manufacturing method therefor. The ring cavity device comprises a passive ring waveguide and an input-output waveguide horizontally coupled with the passive ring waveguide, and further comprises an active waveguide structure perpendicularly coupled with the passive ring waveguide and/or the input-output waveguide, wherein the active waveguide structure provides loss compensation for the passive ring waveguide. By means of perpendicular coupling or mixed coupling (vertical coupling first, and then horizontal coupling), the ring cavity device obtains partial gain, thereby compensating for loss in the ring cavity device, and improving the quality factor thereof.