Mode-resolved optical frequency comb fixed point localization via dual-comb interferometry

被引：0
|
作者：
Herman, Daniel, I [1 ]
Walsh, Mathieu [2 ]
Genest, Jerome [2 ]
机构：
[1] Univ Colorado Boulder, Elect Comp & Energy Engn, Boulder, CO 80309 USA
[2] Univ Laval, Ctr Opt Photon & Laser, Quebec City, PQ G1V 0A6, Canada
来源：
OPTICS LETTERS | 2024年 / 49卷 / 24期
基金：
加拿大自然科学与工程研究理事会;
关键词：
PHASE NOISE; SPECTROSCOPY; STABILIZATION; MODULATION; DYNAMICS; LASERS;
D O I：
10.1364/OL.542464
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We describe improved methods for locating the fixed point of an optical frequency comb. Two continuous-wave lasers are locked to a reference frequency comb and track the optical phase of a second comb-under-test (CUT) at two points separated by approximately 1.6 THz. Carrier-envelope and optical phase tracking (OPT) yields a precise fixed point measurement across a range of pump modulation frequencies (400 Hz-250 kHz). Sub-nanometer shifts of the fixed point are observed. The fixed point is also determined with high precision using dual-comb interferometry (DCI), and the value closely matches the calculation from the dual-point tracking method. (c) 2024 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.
引用
收藏
页码：7098 / 7101
页数：4
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