US 12,206,217 B2
Control system and method for laser pump of doped fiber amplifier
Zhoujian Wang, Fuzhou (CN); Xingyu Weng, Fuzhou (CN); and Qiaowen Chen, Fuzhou (CN)
Assigned to II-VI DELAWARE, INC., Wilmington, DE (US)
Filed by II-IV Delaware, Inc., Wilmington, DE (US)
Filed on Jun. 26, 2023, as Appl. No. 18/214,223.
Application 18/214,223 is a continuation of application No. 17/132,629, filed on Dec. 23, 2020, granted, now 11,728,612.
Claims priority of application No. 201911369224.9 (CN), filed on Dec. 26, 2019.
Prior Publication US 2023/0335967 A1, Oct. 19, 2023
Int. Cl. H01S 3/067 (2006.01); H01S 3/04 (2006.01); H01S 3/091 (2006.01); H01S 3/10 (2006.01); H01S 3/16 (2006.01); H01S 3/094 (2006.01); H01S 5/042 (2006.01)
CPC H01S 3/06754 (2013.01) [H01S 3/0405 (2013.01); H01S 3/0912 (2013.01); H01S 3/10069 (2013.01); H01S 3/1608 (2013.01); H01S 3/094003 (2013.01); H01S 5/042 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system for a pump chip of a doped fiber amplifier, the system comprising:
a pump driver and a thermoelectric-cooler (TEC) controller, the TEC controller configured to control a TEC device; and
an external TEC driver coupled between the TEC controller and the TEC device, the external TEC driver being configured to control the TEC device in place of the TEC controller.