Transition from single-mode to multimode operation of an injection-seeded pulsed optical parametric oscillator
Date
2004
Authors
White, Richard T
He, Yabai
Orr, Brian J
Kono, Mitsuhiko
Baldwin, Kenneth
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Volume Title
Publisher
Optical Society of America
Abstract
Optical-heterodyne measurements are made on ~842-nm signal
output of an injection-seeded optical parametric oscillator (OPO) based on
periodically poled KTiOPO4 pumped at 532 nm by long (~27-ns) pulses
from a Nd:YAG laser. At low pump energies (≤ 2.5 times the free-running
threshold), the narrowband tunable OPO output is single-longitudinal-mode
(SLM) and frequency chirp can be <10 MHz, much less than the transformlimited
optical bandwidth (~17.5 MHz). We explore the transition from
SLM operation to multimode operation as pump energy or phase mismatch
are increased, causing unseeded cavity modes to build up later in the pulse.
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Keywords
phase measurement, parametric oscillators and amplifiers
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Optics Express
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Journal article
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