US 11,815,750 B2
Low-loss waveguiding structures, in particular modulators
Mian Zhang, Cambridge, MA (US); Christian Reimer, Brookline, MA (US); and Kevin Luke, Cambridge, MA (US)
Assigned to HyperLight Corporation, Cambridge, MA (US)
Filed by HyperLight Corporation, Cambridge, MA (US)
Filed on Nov. 22, 2021, as Appl. No. 17/532,244.
Application 17/532,244 is a continuation of application No. 16/924,767, filed on Jul. 9, 2020, granted, now 11,181,760.
Claims priority of provisional application 62/871,928, filed on Jul. 9, 2019.
Prior Publication US 2022/0155620 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/035 (2006.01); G02B 6/122 (2006.01); G02F 1/225 (2006.01); G02F 1/01 (2006.01); G02B 6/28 (2006.01)
CPC G02F 1/035 (2013.01) [G02B 6/1228 (2013.01); G02F 1/225 (2013.01); G02B 6/2813 (2013.01); G02F 1/0118 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An optical modulator comprising:
a first waveguide arm for transmitting at least a first portion of a beam of light, the first waveguide arm comprising a first single mode waveguide section and a first multimode waveguide section;
a first set of electrodes for modulating the beam of light; and
an adiabatic taper coupling the first single mode waveguide section and the first multimode waveguide section;
wherein at least a portion of the first multimode waveguide section is disposed adjacent to the first set of electrodes; and
wherein the first single mode waveguide section and the first multimode waveguide section comprise Lithium Niobate or Lithium Tantalate.