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Title: Frequency stabilization of an Er-doped fiber laser with a collinear 2f-to-3f self-referencing interferometer

We report the stabilization of the carrier-envelope offset (CEO) frequency of an Er-doped fiber laser with a collinear 2f-to-3f self-referencing interferometer. The interferometer is implemented by a dual-pitch periodically poled lithium niobate ridge waveguide with two different quasi-phase matching pitch sizes. We obtain a 52-dB signal-to-noise ratio in the 100-kHz resolution bandwidth of a heterodyne beat signal, which is sufficient for frequency stabilization. We also demonstrate that the collinear geometry is robust against environmental perturbation by comparing in-loop and out-of-loop Allan deviations when the in-loop CEO frequency is stabilized with a phase-locked loop circuit.
Authors:
; ; ; ;  [1] ;  [2] ;  [3]
  1. NTT Basic Research Laboratories, NTT Corporation, Atsugi-shi, Kanagawa 243-0198 (Japan)
  2. NTT Device Technology Laboratories, NTT Corporation, Atsugi-shi, Kanagawa 243-0198 (Japan)
  3. Tokyo Denki University, 5 Senju-Asahi-cho, Adachi-ku, Tokyo 120-8551 (Japan)
Publication Date:
OSTI Identifier:
22412547
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 23; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DOPED MATERIALS; ERBIUM; INTERFEROMETERS; KHZ RANGE 01-100; LASERS; LITHIUM; NIOBATES; OPTICAL FIBERS; SIGNAL-TO-NOISE RATIO; WAVEGUIDES