Open AccessCollinear opto-optical loss modulation for carrier-envelope offset stabilization of a fiber frequency comb
Author(s) -
Daniel I. Herman,
Jean-Daniel Deschênes,
Henry Timmers,
Ian Coddington,
Nathan R. Newbury
Publication year - 2022
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.471877
Subject(s) - materials science , optics , femtosecond , fiber laser , frequency comb , mode locking , amplitude modulation , laser , optical fiber , optoelectronics , frequency modulation , bandwidth (computing) , physics , telecommunications , computer science
Opto-optical loss modulation (OOM) for stabilization of the carrier-envelope offset (CEO) frequency of a femtosecond all-fiber laser is performed using a collinear geometry. Amplitude-modulated 1064 nm light is fiber coupled into an end-pumped semiconductor saturable absorber mirror (SESAM)-mode-locked all-polarization-maintaining erbium fiber femtosecond laser, where it optically modulates the loss of the SESAM resulting in modulation of the CEO frequency. A noise rejection bandwidth of 150 kHz is achieved when OOM and optical gain modulation are combined in a hybrid analog/digital loop. Collinear OOM provides a simple, all-fiber, high-bandwidth method for improving the CEO frequency stability of SESAM mode-locked fiber lasers.