期刊
OPTICS LETTERS
卷 43, 期 8, 页码 1814-1817出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.43.001814
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- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Fonds de Recherche du Quebec-Nature et Technologies (FRQNT)
- Telops Inc.
- Boeing Company
We characterize the frequency noise performance of a free-running dual-comb source based on an erbium-doped glass chip running two adjacent mode-locked waveguide lasers. This compact laser platform, contained only in a 1.2 L volume, rejects common-mode environmental noise by 20 dB thanks to the proximity of the two laser cavities. Furthermore, it displays a remarkably low mutual frequency noise floor around 10 Hz(2)/Hz, which is enabled by its large-mode-area waveguides and low Kerr nonlinearity. As a result, it reaches a free-running mutual coherence time of 1 s since mode-resolved dual-comb spectra are generated even on this time scale. This design greatly simplifies dual-comb interferometers by enabling mode-resolved measurements without any phase lock. (C) 2018 Optical Society of America
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