Patent ID: 11862932
Assignee: META PLATFORMS TECHNOLOGIES, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 2:
3. The wavelength-tunable multi-beam light source of claim 1, wherein:
the first laser is a fixed laser for emitting light at a fixed optical frequency, and each second laser of the plurality of second lasers is a tunable laser for emitting light at a tunable optical frequency; and
the optical frequency mixer comprises a routing element and a plurality of nonlinear optical elements coupled to the routing element;
wherein the routing element is configured for coupling the light at the fixed optical frequency to each one of the plurality of nonlinear optical elements, and for coupling the light at each tunable frequency to a particular one of the plurality of nonlinear optical elements, such that, when each second laser is tuned in optical frequency, each output light beam of the plurality of output light beams is independently tuned in wavelength.