Patent ID: 11901699
Assignee: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS (SINANO) , CHINESE ACADEMY OF SCIENCES
Field: Optics (Instruments)
Classification: CPC H  G | IPC G  H

Claim 13:
14. The narrow linewidth laser according to claim 3, further comprises an additional PN junction region or MOS junction region, wherein the additional PN junction region or MOS junction region is embedded in the M-Z compound external cavity structure; the additional PN junction region is a gain region and is at least used for compensating a loss of the M-Z compound external cavity structure, thus extending an external cavity optical path, enhancing optical negative feedback and narrowing the laser linewidth; or, the additional PN junction region or MOS junction region is transparent to a lasing wavelength, and a refractive index of the additional PN junction region or MOS junction region is allowed to be rapidly adjusted when performing electrical injection or reverse bias on the additional PN junction region or the MOS junction region, thus achieving rapid tuning of the lasing wavelength with lower power consumption.