Patent · US Active

Use of electronically controlled polarization elements for the initiation and optimization of laser mode-locking

US11101615B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

Thorlabs, Inc. · DE

Inventors

David G. Winters · Fort Collins, US
Matthew S. Kirchner · Westminster, US
Sterling Backus · Longmont, US

Key dates

Filing date	Jun 3, 2017
Grant date	Aug 24, 2021
Priority date	—
Expiry date	Aug 19, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/1618
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Apparatus for modelocking a fiber laser cavity includes two variable retarder assemblies and a polarizing element. The variable retarder assemblies each have two electronically addressable elements and one fixed element. The first variable retarder assembly prepares a polarization state suitable for NPE modelocking to be launched into the fiber, and the second variable retarder assembly controls the polarization state after exiting the fiber, before being incident on the polarizing element. A control system controls the electronically addressable phase retarders in order to create and modify conditions for modelocking the fiber laser.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.