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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 6 — Mar. 15, 2012
  • pp: 1011–1013

Direct link of a mid-infrared QCL to a frequency comb by optical injection

S. Borri, I. Galli, F. Cappelli, A. Bismuto, S. Bartalini, P. Cancio, G. Giusfredi, D. Mazzotti, J. Faist, and P. De Natale  »View Author Affiliations


Optics Letters, Vol. 37, Issue 6, pp. 1011-1013 (2012)
http://dx.doi.org/10.1364/OL.37.001011


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Abstract

A narrow-linewidth comb-linked nonlinear source is used as master radiation to injection lock a room-temperature mid-infrared quantum cascade laser (QCL). This process leads to a direct lock of the QCL to the optical frequency comb, providing the unique features of narrow linewidth, absolute frequency, higher output power, and wide mode-hop-free tunability. The QCL reproduces the injected radiation within more than 94%, with a reduction of the frequency-noise spectral density by 3 to 4 orders of magnitude up to about 100 kHz, and a linewidth narrowing from a few MHz to 20 kHz.

© 2012 Optical Society of America

OCIS Codes
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3520) Lasers and laser optics : Lasers, injection-locked
(270.2500) Quantum optics : Fluctuations, relaxations, and noise
(140.3425) Lasers and laser optics : Laser stabilization
(140.5965) Lasers and laser optics : Semiconductor lasers, quantum cascade

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: December 1, 2011
Manuscript Accepted: January 8, 2012
Published: March 7, 2012

Citation
S. Borri, I. Galli, F. Cappelli, A. Bismuto, S. Bartalini, P. Cancio, G. Giusfredi, D. Mazzotti, J. Faist, and P. De Natale, "Direct link of a mid-infrared QCL to a frequency comb by optical injection," Opt. Lett. 37, 1011-1013 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-6-1011

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