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Updated: Jun 30, 2026

12:14
The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Quasi-phase-matching and dispersion characterization of harmonic generation in the perturbative regime using
Alon Bahabad1, Oren Cohen, Margaret M Murnane
1Department of Physics and JILA, University of Colorado at Boulder and NIST, Boulder, Colorado 80309, USA. alonb@jila.colorado.edu
Optics Express
|October 1, 2008
Abstract:
It is shown theoretically that second harmonic generation can be quasi-phase-matched by using a pump beam consisting of a forward propagating field and a counterpropagating pulse train. The counterpropagating setup can also be used for direct measurement of the coherence length of the nonlinear process which can determine the dispersion properties of the medium.

