US 12,255,691 B1
Optical full-field transmitter
Haipeng Zhang, Broomfield, CO (US); Mu Xu, Shoreline, WA (US); Zhensheng Jia, Superior, CO (US); Junwen Zhang, Shanghai (CN); and Luis Alberto Campos, Superior, CO (US)
Assigned to Cable Television Laboratories, Inc., Louisville, CO (US)
Filed by CABLE TELEVISION LABORATORIES, INC., Louisville, CO (US)
Filed on Oct. 30, 2023, as Appl. No. 18/384,969.
Application 18/384,969 is a division of application No. 17/688,487, filed on Mar. 7, 2022, granted, now 11,804,905.
Claims priority of provisional application 63/158,777, filed on Mar. 9, 2021.
Claims priority of provisional application 63/156,990, filed on Mar. 5, 2021.
Int. Cl. H04B 10/50 (2013.01); H04B 10/516 (2013.01)
CPC H04B 10/505 (2013.01) [H04B 10/504 (2013.01); H04B 10/506 (2013.01); H04B 10/5161 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical circulator, comprising:
a plurality of silicon waveguides patterned on a silicon-on-insulator (SOI) substrate, wherein each of the silicon waveguides is substantially linear and has first and second ends;
a plurality of silicon ring resonators patterned on the SOI substrate;
a magneto-optic film bonded on top of the plurality of silicon waveguides and the plurality of silicon ring resonators;
a magneto-optic garnet layer on the magneto-optic film; and
a plurality of metal strips patterned on the magneto-optic garnet layer, each metal strip coupled to a respective distinct electrical connection.