Title
Comparison of two low-noise CEO frequency stabilization methods for an all-PM Yb:fiber NALM oscillator
Author
Sarper Salman
Deutsches Elektronen-Synchrotron DESY
Author
Yuxuan Ma
Deutsches Elektronen-Synchrotron DESY
Author
Kutan Gürel
Université de Neuchâtel
... show all
Abstract
We present a comparison of two low-noise carrier-envelope offset (CEO) frequency stabilization methods studied using an ytterbium (Yb) fiber laser oscillator based on a nonlinear amplifying loop mirror. We first investigate the phase locking performance achieved with cross-gain modulation (XGM) via injection of an auxiliary low-power continuous-wave (CW) laser into the fiber gain medium. Amplification of the injected CW laser light cross-modulates the gain of the oscillator, resulting in an intra-cavity power modulation, thus providing control of the CEO frequency. The XGM method is then compared with the conventional pump-current modulation scheme. Both stabilization methods provide similar locking performances with sub-200-mrad of integrated residual carrier-envelope-phase (CEP) noise (10 Hz to 1 MHz), suitable for high-resolution comb spectroscopy applications.
Keywords
Electrical and Electronic EngineeringAtomic and Molecular Physics, and OpticsElectronic, Optical and Magnetic Materials
Object type
Language
English [eng]
Persistent identifier
https://phaidra.univie.ac.at/o:1611297
Appeared in
Title
OSA Continuum
Volume
4
Issue
6
ISSN
2578-7519
Issued
2021
Publisher
Optica Publishing Group
Date issued
2021
Access rights
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