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Proceedings Paper

An etalon stabilized 10-GHz comb source using a slab coupled waveguide amplifier
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Paper Abstract

An optical comb source based on a slab-coupled optical waveguide amplifier (SCOWA) is presented. The laser is harmonically mode-locked at 10.287 GHz repetition rate and stabilized to an intra-cavity Fabry-Pérot etalon via Pound- Drever-Hall locking. The Fabry-Pérot etalon serves as a reference for the optical frequency of the comb-lines and suppresses the fiber cavity modes to allow only a single longitudinal mode-set to oscillate, generating a frequency comb spaced by the repetition rate. The pulse-to-pulse timing jitter and energy fluctuations are < 2 fs and < 0.03%, respectively (integrated from 1Hz to 100 MHz). Fundamental to this result is the incorporation of the SCOW amplifier as the gain medium and the use of an ultra-low noise sapphire-loaded cavity oscillator to mode-lock the laser. The SCOWA has higher saturation power than commercially available gain media, permitting higher intra-cavity power as well as available power at the output, increasing the power of the photodetected RF tones which increases their signal-to-noise ratio. A high visibility optical frequency comb is observed spanning ~3 nm (at -10 dB), with optical SNR > 60 dB for a cavity with no dispersion compensation. Initial results of a dispersion compensated cavity are presented. A spectral width of ~7.6 nm (-10 dB) was obtained for this case and the pulses can be compressed to near the transform limit at ~930 fs.

Paper Details

Date Published: 12 May 2011
PDF: 6 pages
Proc. SPIE 8054, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications VII, 80540G (12 May 2011); doi: 10.1117/12.886486
Show Author Affiliations
Josue Davila-Rodriguez, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Ibrahim T. Ozdur, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Dimitrios Mandridis, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Charles Williams, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Peter J. Delfyett, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Jason J. Plant, MIT Lincoln Lab. (United States)
Paul W. Juodawlkis, MIT Lincoln Lab. (United States)


Published in SPIE Proceedings Vol. 8054:
Enabling Photonics Technologies for Defense, Security, and Aerospace Applications VII
Michael J. Hayduk; Peter J. Delfyett, Editor(s)

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