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

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