Saturable absorbers for multiband operation of a high-gain short-pulse CO/sub 2/-laser chain

Journal Article · Sun Jan 01 04:00:00 EST 1984 · Appl. Opt.; (United States)

OSTI ID:6787029

Lavigne, P; Pascale, D

It is shown that a high-gain CO/sub 2/-laser chain made of rapidly excited high-pressure amplifiers can be operated without interface isolators. Saturable absorbers are then used only to prevent amplification of frontend leakage and are required to absorb solely at the working frequencies. CH/sub 3/OH, CH/sub 3/OD, CH/sub 3/F, CCl/sub 2/F/sub 2/, and HCOOH have been characterized in view of pulse contrast enhancement around 9.4 ..mu..m in a multiline multiband laser chain. The optimum pressure, the saturating fluence, the small-signal absorption coefficient, and its ratio over the saturated absorption coefficient are given for many CO/sub 2/-laser lines.

• Research Organization: Universite du Quebec, INRS Energies, Institut National de la Recherche Scientifique, C.P. 1020, Varennes, Quebec, J0L 2P0
• OSTI ID: 6787029
• Journal Information: Appl. Opt.; (United States), Journal Name: Appl. Opt.; (United States) Vol. 23:1; ISSN APOPA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ABSORPTIVITY
AMPLIFICATION
AMPLIFIERS
CARBON DIOXIDE LASERS
DESIGN
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
EQUIPMENT
GAIN
GAS LASERS
INFRARED RADIATION
LASER CAVITIES
LASERS
OPERATION
OPTICAL PROPERTIES
OPTIMIZATION
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
SATURATION
STABILIZATION
THERMODYNAMIC PROPERTIES
VAPOR PRESSURE