Patent ID: 9293887
Filing Date: 2016-03-22
CPC Classification: H01S

Claim Text:
1. A laser source comprising: (a) a pump laser source and an optical fiber arranged to launch pump laser power to propagate along the optical fiber past a tapered segment thereof; and (b) a semiconductor oxide disk optical resonator positioned on a semiconductor substrate so as to enable optical coupling of at least a portion of the pump laser power from the optical fiber into the disk optical resonator, wherein: (c) the disk optical resonator rests on a circumscribed, flat-topped protrusion from a surface of the substrate; (d) the pump laser source and the disk optical resonator are arranged so that a selected optical frequency of the pump laser power substantially coincides with an optical frequency of a resonant optical mode of the disk optical resonator; (e) the disk optical resonator is arranged with a substantially frusto-conical outer circumferential surface, characterized by a slope angle greater than about 27°, so as to exhibit a Q-factor greater than about 10 (f) the disk optical resonator is arranged so as to exhibit a free spectral range that substantially coincides with an optical frequency of a stimulated Brillouin gain spectrum of the semiconductor oxide disk optical resonator, so that the portion of the pump laser power coupled into the disk optical resonator, with the pump laser power above a pump laser power threshold level, results in stimulated Brillouin laser oscillation in the disk optical resonator.