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Optical Engineering

Seed-source tuning of a broadband noncollinear optical parametric generator based on periodically poled LiNbO3
Author(s): S. Haidar; T. Usami; Junichi Shikata; Hiromasa Ito
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Paper Abstract

We report a noncollinear optical parametric generator (OPG) using periodically poled LiNbO3 (PPLN) pumped by a Nd:YAG laser. Signal tuning is achieved from 1.58 to 1.81 μm by angular rotation of the PPLN crystal. A signal linewidth of 68 nm was found at 1.76 μm. A 532-nm-pumped narrow-linewidth OPG is employed for its idler to serve as a seed source for the Nd:YAG-pumped broadband OPG. Tuning the seed wavelength only, tuning of the noncollinear OPG is achieved, with its linewidth reduced to 1.7 nm throughout its bandwidth. Such a system can be employed for wavelength division multiplexing, optical coherence tomography, and spectroscopy.

Paper Details

Date Published: 1 January 2003
PDF: 5 pages
Opt. Eng. 42(1) doi: 10.1117/1.1525278
Published in: Optical Engineering Volume 42, Issue 1
Show Author Affiliations
S. Haidar, Tohoku Univ. (Japan)
T. Usami, Tohoku Univ. (Japan)
Junichi Shikata, Tohoku Univ. (Japan)
Hiromasa Ito, Tohoku Univ. and RIKEN--The Institute for Chemical and Physical Research (Japan)

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