US 11,874,496 B2
Interferometer filters with compensation structure
Koustuban Ravi, Mountain View, CA (US); Mark Thompson, San Jose, CA (US); and Eric Dudley, Sacramento, CA (US)
Assigned to Psiquantum, Corp., Palo Alto, CA (US)
Filed by Psiquantum, Corp., Palo Alto, CA (US)
Filed on Nov. 15, 2022, as Appl. No. 17/987,741.
Application 17/987,741 is a continuation of application No. 17/345,724, filed on Jun. 11, 2021, granted, now 11,543,587.
Application 17/345,724 is a continuation of application No. 16/599,526, filed on Oct. 11, 2019, granted, now 11,048,041, issued on Jun. 28, 2021.
Application 16/599,526 is a continuation of application No. 16/514,832, filed on Jul. 17, 2019, granted, now 10,534,130, issued on Jan. 14, 2020.
Claims priority of provisional application 62/853,657, filed on May 28, 2019.
Claims priority of provisional application 62/851,559, filed on May 22, 2019.
Claims priority of provisional application 62/851,039, filed on May 21, 2019.
Prior Publication US 2023/0152515 A1, May 18, 2023
Int. Cl. G02B 6/02 (2006.01); G02B 6/122 (2006.01); G02B 6/13 (2006.01); G02B 6/293 (2006.01); G02B 6/12 (2006.01)
CPC G02B 6/12007 (2013.01) [G02B 6/1228 (2013.01); G02B 6/13 (2013.01); G02B 6/29355 (2013.01); G02B 2006/12061 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A photonic switch comprising:
a first waveguide including:
a first region extending between a first coupler section and a second coupler section; and
a second region extending between the second coupler section and a third coupler section; and
a second waveguide including:
a first portion extending between the first coupler section and the second coupler section, the first portion including at least two first compensation sections each having a different waveguide width; and
a second portion extending between the second coupler section and the third coupler section, the second portion including at least two second compensation sections each having a different waveguide width; and
at least one variable phase-shifter disposed in at least one of the first waveguide or the second waveguide.