US 11,054,592 B2
Heatsink with graphene coating and an optical transmitter or transceiver implementing same
Kai-Sheng Lin, Sugar Land, TX (US); Hao-Chiang Cheng, Houston, TX (US); and Ziliang Cai, Richmond, TX (US)
Assigned to Applied Optoelectronics, Inc., Sugar Land, TX (US)
Filed by Applied Optoelectronics, Inc., Sugar Land, TX (US)
Filed on Nov. 24, 2019, as Appl. No. 16/693,361.
Prior Publication US 2021/0157074 A1, May 27, 2021
Int. Cl. G02B 6/42 (2006.01); H05K 7/20 (2006.01); F21V 8/00 (2006.01)
CPC G02B 6/4269 (2013.01) [G02B 6/0085 (2013.01); H05K 7/209 (2013.01); H05K 7/20409 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An optical device capable of transmitting multiple channel wavelengths, the optical device comprising:
a housing having at least first and second sidewalls that extend from an electrical coupling end to an optical coupling end and define a cavity therebetween;
an optical component disposed within the housing, the optical component in thermal communication with the housing to communicate generated heat;
at least a first heatsink disposed on the first sidewall of the housing;
at least one layer of graphene disposed on the first heatsink, the at least one layer of graphene comprising 50-100% graphene by weight % to increase thermal dissipation of heat generated by the optical component; and
wherein the at least one layer of graphene provides graphene-coated channels that extend through the first heatsink to allow air currents to enter therein and dissipate heat generated by the optical component.