Title

Frequency stability of a 10 GHz optical frequency comb from a semiconductor-based mode-locked laser with an intracavity 10,000 finesse etalon

Authors

Authors

J. Davila-Rodriguez; K. Bagnell;P. J. Delfyett

Comments

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Abbreviated Journal Title

Opt. Lett.

Keywords

ULTRALOW-NOISE; SPECTROGRAPH; AMPLIFIER; JITTER; Optics

Abstract

An optical frequency comb is constructed using a semiconductor gain medium with a fiber-coupled external cavity and stabilized to an intracavity 10,000 finesse etalon, which is temperature stabilized and held in a vacuum chamber at 10(-6) Torr. Optical frequency stability measurements show that the comb has a reduced sensitivity to environmental fluctuations. An upper limit on the optical frequency variation of 100 kHz over > 12 min of continuous operation is measured using a real-time spectrum analyzer. This measurement is limited by the linewidth of the reference source, and further measurements with a frequency counter show a fractional deviation of 2 x 10(-11) at 50 ms. Furthermore, out-of-band ASE rejection is shown to be > 36 dB, a tenfold improvement over that of a laser with a 1000 finesse FPE. (C) 2013 Optical Society of America

Journal Title

Optics Letters

Volume

38

Issue/Number

18

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

3665

Last Page

3668

WOS Identifier

WOS:000325212800051

ISSN

0146-9592

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