US 12,149,051 B2
Dual grating-coupled lasers
Shiyun Lin, San Diego, CA (US); and Daniel Mahgerefteh, Los Angeles, CA (US)
Assigned to II-VI DELAWARE, INC., Wilmington, DE (US)
Filed by II-VI DELAWARE, INC., Wilmington, DE (US)
Filed on Jul. 19, 2023, as Appl. No. 18/355,103.
Application 18/355,103 is a continuation of application No. 17/809,789, filed on Jun. 29, 2022, granted, now 11,749,968.
Application 17/809,789 is a continuation of application No. 16/844,598, filed on Apr. 9, 2020, granted, now 11,404,850, issued on Aug. 2, 2022.
Claims priority of provisional application 62/836,994, filed on Apr. 22, 2019.
Prior Publication US 2023/0361533 A1, Nov. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01S 5/18 (2021.01); G02B 6/12 (2006.01); G02B 6/124 (2006.01); G02B 6/293 (2006.01); H01S 5/00 (2006.01); H01S 5/026 (2006.01); H01S 5/10 (2021.01); H01S 5/187 (2006.01)
CPC H01S 5/187 (2013.01) [G02B 6/12004 (2013.01); G02B 6/124 (2013.01); G02B 6/2935 (2013.01); H01S 5/005 (2013.01); H01S 5/026 (2013.01); H01S 5/1028 (2013.01); G02B 2006/12121 (2013.01); G02B 2006/12147 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a controller coupled to a plurality of grating-coupled lasers (GCLs),
wherein the controller is configured to prolong a lifespan of two or more of the plurality of GCLs by repeatedly alternating operation of the two or more of the plurality of GCLs.