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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 17 — Aug. 13, 2012
  • pp: 19589–19598

Amplifier-free slab-coupled optical waveguide optoelectronic oscillator systems

William Loh, Siva Yegnanarayanan, Jonathan Klamkin, Shannon M. Duff, Jason J. Plant, Frederick J. O’Donnell, and Paul W. Juodawlkis  »View Author Affiliations

Optics Express, Vol. 20, Issue 17, pp. 19589-19598 (2012)

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We demonstrate a free-running 3-GHz slab-coupled optical waveguide (SCOW) optoelectronic oscillator (OEO) with low phase-noise (<-120 dBc/Hz at 1-kHz offset) and ultra-low sidemode spurs. These sidemodes are indistinguishable from noise on a spectrum analyzer measurement (>88 dB down from carrier). The SCOW-OEO uses high-power low-noise SCOW components in a single-loop cavity employing 1.5-km delay. The noise properties of our SCOW external-cavity laser (SCOWECL) and SCOW photodiode (SCOWPD) are characterized and shown to be suitable for generation of high spectral purity microwave tones. Through comparisons made with SCOW-OEO topologies employing amplification, we observe the sidemode levels to be degraded by any amplifiers (optical or RF) introduced within the OEO cavity.

© 2012 OSA

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(250.0250) Optoelectronics : Optoelectronics

ToC Category:
Lasers and Laser Optics

Original Manuscript: June 28, 2012
Revised Manuscript: August 1, 2012
Manuscript Accepted: August 1, 2012
Published: August 10, 2012

William Loh, Siva Yegnanarayanan, Jonathan Klamkin, Shannon M. Duff, Jason J. Plant, Frederick J. O’Donnell, and Paul W. Juodawlkis, "Amplifier-free slab-coupled optical waveguide optoelectronic oscillator systems," Opt. Express 20, 19589-19598 (2012)

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