US 11,675,221 B1
Active photonic devices with enhanced Pockels effect via isotope substitution
Gary Gibson, Palo Alto, CA (US)
Assigned to Psiquantum, Corp., Palo Alto, CA (US)
Filed by Psiquantum, Corp., Palo Alto, CA (US)
Filed on Feb. 16, 2022, as Appl. No. 17/673,696.
Application 17/673,696 is a continuation of application No. 16/903,285, filed on Jun. 16, 2020, granted, now 11,256,115.
Claims priority of provisional application 62/864,975, filed on Jun. 21, 2019.
Int. Cl. G02F 1/035 (2006.01); G02F 1/225 (2006.01); G02F 1/21 (2006.01)
CPC G02F 1/035 (2013.01) [G02F 1/225 (2013.01); G02F 1/212 (2021.01); G02F 2202/105 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An optical switch structure comprising:
a substrate;
a first electrical contact;
a first material having a first conductivity type electrically connected to the first electrical contact;
a second material having a second conductivity type coupled to the first material;
a second electrical contact electrically connected to the second material; and
a waveguide structure disposed between the first electrical contact and the second electrical contact and comprising:
a waveguide core coupled to the substrate and including a core material characterized by a first index of refraction; and
a waveguide cladding at least partially surrounding the waveguide core and including a cladding material characterized by a second index of refraction less than the first index of refraction and an isotope-enhanced Pockels effect.