US 11,698,487 B2
Compact micro electrical mechanical actuated ring-resonator
Sujit Handanhal Ramachandra, Allentown, PA (US); and Kirk L. Stechschulte, Vista, CA (US)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Nov. 5, 2021, as Appl. No. 17/453,780.
Prior Publication US 2023/0145261 A1, May 11, 2023
Int. Cl. G02B 6/12 (2006.01); G02B 6/293 (2006.01)
CPC G02B 6/12007 (2013.01) [G02B 6/29338 (2013.01); G02B 2006/12107 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a bus waveguide disposed on a platform;
a ring resonator disposed on the platform, including at least a first optical coupler, wherein the ring resonator is optically coupled with the bus waveguide; and
a selective waveguide disposed on a piezoelectric cantilever mounted in a trench defined in the platform, wherein the selective waveguide includes a second optical coupler and is controllable to selectively adjust a coupling ratio between the first optical coupler with the second optical coupler by physically changing a distance between the first optical coupler and the second optical coupler.