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

Journal Article · Mon Jun 08 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4922553· OSTI ID:22412547

Ishizawa, A.; Mashiko, H.; Sogawa, T.; Gotoh, H. ^[1]; Tadanaga, O. ^[2]; Nishikawa, T. ^[3]

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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)

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.

• OSTI ID: 22412547
• Journal Information: Applied Physics Letters, Vol. 106, Issue 23; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

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