US 11,782,323 B2
Optical switches based on induced optical loss
Mihai Vidrighin, Palo Alto, CA (US); Nikhil Kumar, Burlingame, CA (US); and Gary Gibson, Palo Alto, CA (US)
Assigned to PSIQUANTUM CORP., Palo Alto, CA (US)
Filed by PSIQUANTUM CORP., Palo Alto, CA (US)
Filed on Apr. 25, 2022, as Appl. No. 17/728,890.
Application 16/941,355 is a division of application No. 16/503,993, filed on Jul. 5, 2019, granted, now 10,747,085, issued on Aug. 18, 2020.
Application 17/728,890 is a continuation of application No. 16/941,355, filed on Jul. 28, 2020, granted, now 11,314,143.
Prior Publication US 2023/0047258 A1, Feb. 16, 2023
Int. Cl. G02F 1/313 (2006.01); G02B 6/35 (2006.01); G02B 6/12 (2006.01)
CPC G02F 1/3138 (2013.01) [G02B 6/12007 (2013.01); G02B 6/354 (2013.01); G02F 1/3132 (2013.01); G02B 2006/12145 (2013.01); G02B 2006/12147 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical device, comprising:
a first waveguide including:
a plurality of first portions coupled with regions doped with first dopants including a respective first portion coupled with a first region doped with first dopants; and
a plurality of second portions coupled with regions doped with second dopants, distinct from the first dopants, the plurality of first portions being interleaved with the plurality of second portions, the plurality of second portions including a respective second portion coupled with a second region doped with the second dopants; and
a second waveguide located adjacent to the first waveguide for coupling light from the first waveguide to the second waveguide, the second waveguide including:
a third portion coupled with a third region doped with the first dopants and a fourth portion coupled with a fourth region doped with the second dopants, wherein the respective first portion is located adjacent to the third portion and the respective second portion is located adjacent to the fourth portion.