Laser linewidth narrowing induced by amplifier gain saturation
Journal Article
·
· Optics Letters; (United States)
- Molecular Physics Laboratory, SRI International, Menlo Park, California 94025 (United States)
- Deacon Research, 2440 Embarcadero Way, Palo Alto, California 94303 (United States)
We demonstrate that temporal broadening of transform-limited nanosecond pulses during gain saturation in a Nd:YAG amplifier can produce substantial linewidth narrowing. Measurements of linewidths with two-color Doppler-free saturated spectroscopy in I[sub 2] show reductions in linewidth by more than a factor of 2.5 from 58 to 20 MHz when a double-pass amplifier is used. The observed temporal broadening is described well by a simple gain saturation theory.
- OSTI ID:
- 6726694
- Journal Information:
- Optics Letters; (United States), Journal Name: Optics Letters; (United States) Vol. 19:19; ISSN OPLEDP; ISSN 0146-9592
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
AMPLIFICATION
ELECTROMAGNETIC RADIATION
ELECTRONIC CIRCUITS
INFRARED RADIATION
LASERS
LINE NARROWING
LINE WIDTHS
NEODYMIUM LASERS
PULSE CIRCUITS
PULSE SHAPERS
PULSE TECHNIQUES
RADIATIONS
SIGNAL CONDITIONERS
SOLID STATE LASERS
VISIBLE RADIATION
426002* -- Engineering-- Lasers & Masers-- (1990-)
AMPLIFICATION
ELECTROMAGNETIC RADIATION
ELECTRONIC CIRCUITS
INFRARED RADIATION
LASERS
LINE NARROWING
LINE WIDTHS
NEODYMIUM LASERS
PULSE CIRCUITS
PULSE SHAPERS
PULSE TECHNIQUES
RADIATIONS
SIGNAL CONDITIONERS
SOLID STATE LASERS
VISIBLE RADIATION