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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 15 — Jul. 16, 2012
  • pp: 16671–16676

Portable frequency combs for optical frequency metrology

Chris Lee, Sai Tak Chu, Brent E. Little, Joss Bland-Hawthorn, and Sergio Leon-Saval  »View Author Affiliations

Optics Express, Vol. 20, Issue 15, pp. 16671-16676 (2012)

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We demonstrate a temperature stabilized CMOS-compatible frequency comb based on an integrated optical micro-ring resonator. The instrument operates in the wavelength interval 1520-1600 nm with a wide free spectral range (FSR) of 200 GHz. By embedding a highly sensitive “resistive thermal device” (RTD) on the surface of the chip to provide temperature feedback to the thermal electric cooler, the bench top unit achieves wavelength stability of ~1 pm over a 24 hour period with good power stability. The new frequency comb is designed to be robust, compact and portable. Our approach reduces the cost and complexity of existing high precision frequency combs currently used in the fields of metrology, remote sensing and stellar spectroscopy where high stability is required for prolonged periods of time.

© 2012 OSA

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(230.0230) Optical devices : Optical devices

ToC Category:
Integrated Optics

Original Manuscript: March 8, 2012
Revised Manuscript: April 26, 2012
Manuscript Accepted: April 26, 2012
Published: July 9, 2012

Chris Lee, Sai Tak Chu, Brent E. Little, Joss Bland-Hawthorn, and Sergio Leon-Saval, "Portable frequency combs for optical frequency metrology," Opt. Express 20, 16671-16676 (2012)

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