Novel techniques for stabilizing fiber laser frequency combs
Abstract
We present the carrier envelope offset (CEO) frequency stabilization of a fiber laser using two novel methods. The first one is based on cross gain modulation (XGM) implemented with a low-power auxiliary light sharing the laser gain medium. The second method is based on opto-optical-modulation (OOM) of a semiconductor absorber mirror in the laser cavity, used for the first time in a fiber laser. We achieved CEO stabilization with feedback bandwidths of up to 600 kHz using these two easy-to-integrate methods. A tight CEO lock was achieved with a residual integrated phase noise of less than 400 mrad.
- Publication:
-
Fiber Lasers XV: Technology and Systems
- Pub Date:
- February 2018
- DOI:
- 10.1117/12.2288766
- Bibcode:
- 2018SPIE10512E..1NG