Patent ID: 11914203
Assignee: AYAR LABS, INC.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G

Claim 8:
9. The method as recited in claim 6, wherein the laser array chip includes a first alignment laser configured and connected to provide continuous wave laser light to a first alignment optical output on the laser array chip, the first alignment optical output on the laser array chip positioned at a first side of the number (N) of distributed feedback lasers, the method including positioning of the laser array chip on the substrate so that the first alignment optical output on the laser array chip faces toward the second area,
wherein the laser array chip includes a first alignment photodetector optically connected to a first alignment optical input on the laser array chip, the first alignment optical input on the laser array chip positioned next to the first alignment optical output on the laser array chip, the method including positioning of the laser array chip on the substrate so that the first alignment optical input on the laser array chip faces toward the second area,
wherein the planar lightwave circuit includes a first alignment waveguide configured to extend from a first alignment optical input on the planar lightwave circuit to a first alignment optical output on the planar lightwave circuit, such that light entering the first alignment optical input on the planar lightwave circuit is conveyed through the first alignment waveguide and through the first alignment optical output on the planar lightwave circuit, the method including positioning of the planar lightwave circuit on the substrate so that both the first alignment optical input on the planar lightwave circuit and the first alignment optical output on the planar lightwave circuit face toward the first area,
wherein the method includes operating the first alignment laser to transmit continuous wave laser light through the first alignment optical output on the laser array chip,
wherein the method includes operating the first alignment photodetector to detect when the continuous wave laser light enters the first alignment optical input on the laser array chip, and
wherein the method includes aligning the planar lightwave circuit on the substrate relative to the laser array chip so that the continuous wave laser light transmitted through the first alignment optical output on the laser array chip enters the first alignment optical input on the planar lightwave circuit and travels through the first alignment waveguide to exit the first alignment optical output on the planar lightwave circuit and enter the first alignment optical input on the laser array chip and be detected by the first alignment photodetector.