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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 30, Iss. 16 — Aug. 15, 2005
  • pp: 2164–2166

Ultrasensitive second-harmonic generation frequency-resolved optical gating by aperiodically poled LiNbO3 waveguides at 1.5 µm

Shang-Da Yang, Andrew M. Weiner, Krishnan R. Parameswaran, and Martin M. Fejer  »View Author Affiliations


Optics Letters, Vol. 30, Issue 16, pp. 2164-2166 (2005)
http://dx.doi.org/10.1364/OL.30.002164


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Abstract

We retrieve intensity and phase profiles of 280 fs, 50 MHz optical pulses with 124 aJ coupled pulse energy (960 photons) by second-harmonic generation (SHG) frequency-resolved optical gating, using aperiodically poled LiNbO3 waveguides. The strong nonlinear interaction that is due to confinement within the micrometer-sized waveguide structure and the linearly chirped poling period contribute, respectively, to high SHG efficiency and broad phase-matching bandwidth. The achieved sensitivity is 2.7×10^-6 mW², improving on the previous record for self-referenced complete pulse characterization by 5 orders of magnitude.

© 2005 Optical Society of America

OCIS Codes
(130.3730) Integrated optics : Lithium niobate
(320.7100) Ultrafast optics : Ultrafast measurements
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

Citation
Shang-Da Yang, Andrew M. Weiner, Krishnan R. Parameswaran, and Martin M. Fejer, "Ultrasensitive second-harmonic generation frequency-resolved optical gating by aperiodically poled LiNbO3 waveguides at 1.5 µm," Opt. Lett. 30, 2164-2166 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-16-2164


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