US 11,940,709 B2
High-gain differential electro-optic modulator
Christopher R. Doerr, Middletown, NJ (US)
Assigned to Aloe Semiconductor Inc., Middletown, NJ (US)
Filed by Aloe Semiconductor Inc., Middletown, NJ (US)
Filed on Dec. 30, 2022, as Appl. No. 18/092,084.
Application 18/092,084 is a continuation of application No. 17/226,730, filed on Apr. 9, 2021, granted, now 11,543,728.
Prior Publication US 2023/0145767 A1, May 11, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/225 (2006.01); G02F 1/21 (2006.01)
CPC G02F 1/2257 (2013.01) [G02F 1/212 (2021.01); G02F 1/2255 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical modulator comprising:
a Mach-Zehnder interferometer comprising (i) a first optical waveguide comprising a first semiconductor junction diode, and (ii) a second optical waveguide comprising a second semiconductor junction diode; and
a semiconductor region between the first semiconductor junction diode and the second semiconductor junction diode; and
a high-impedance direct current (DC) bias that is connected between the first semiconductor junction diode and the second semiconductor junction diode,
wherein the high-impedance DC bias is connected with an impedance that is greater than 100 ohms.