Invention Grant
- Patent Title: Optical frequency measurement device
-
Application No.: US16949715Application Date: 2020-11-11
-
Publication No.: US11460347B2Publication Date: 2022-10-04
- Inventor: Colin Smith , Adrian Perrin Janssen , Stuart Conley
- Applicant: Lumentum Operations LLC
- Applicant Address: US CA San Jose
- Assignee: Lumentum Operations LLC
- Current Assignee: Lumentum Operations LLC
- Current Assignee Address: US CA San Jose
- Agency: Harrity & Harrity, LLP
- Main IPC: G01J9/02
- IPC: G01J9/02 ; G02B17/00 ; G02B27/10

Abstract:
An optical locker may include an assembly. The assembly may include a beam splitter, configured to split an input beam into at least three beams; an etalon having at least three regions, positioned so that each beam passes through a different region; a detector configured to measure output intensities, Tn, of the etalon for the beam; and a controller configured to determine a ratio, Ta/Tb, of the output intensities, wherein that ratio has a slope at the output intensities which is above a threshold, obtain a target frequency of the input beam, and determine an actual frequency of the input beam based on the target frequency and the ratio of the output intensities.
Public/Granted literature
- US20210262862A1 OPTICAL FREQUENCY MEASUREMENT DEVICE Public/Granted day:2021-08-26
Information query