US 12,352,574 B2
Multi-axis fiber optic gyroscope photonic integrated circuit for inertial measurement units and inertial navigation systems
Jan Amir Khan, Windsor, CT (US); and Martin A. Kits van Heyningen, Newport, RI (US)
Assigned to EMCORE CORPORATION, Alhambra, CA (US)
Filed by EMCORE Corporation, Alhambra, CA (US)
Filed on Nov. 29, 2022, as Appl. No. 18/059,653.
Claims priority of provisional application 63/264,671, filed on Nov. 30, 2021.
Prior Publication US 2023/0168090 A1, Jun. 1, 2023
Int. Cl. G01C 19/72 (2006.01)
CPC G01C 19/725 (2013.01) [G01C 19/728 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A photonic integrated circuit (PIC), comprising:
at least two optical circuits disposed on the PIC;
two or more optical interfaces, each of the two or more optical interfaces configured to provide a connection between a respective one of the at least two optical circuits and at least one external optical component;
a layout arrangement of the at least two optical circuits on the PIC, the layout arrangement configured such that all of the two or more optical interfaces of the at least two optical circuits disposed on the PIC are situated in at least one local group of optical interfaces, and the at least one local group of optical interfaces is located on a single facet of the PIC.