Stark-tuned, far-infrared laser for high-frequency plasma diagnostics

Journal Article · Thu Aug 20 00:00:00 EDT 1992 · Applied Optics; (United States)

DOI:https://doi.org/10.1364/AO.31.005030· OSTI ID:7010577

Mansfield, D K; Vocaturo, M; Guttadora, L ^[1]; Rockmore, M ^[1]; Micai, K; Krug, P A ^[2]

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1. Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)
2. School of Physics, the University of Sydney, New South Wales, Australia 2006 ( )

A Stark-tuned optically pumped far-infrared CH{sub 3}OH laser operating at 119 {mu}m has been built. The laser is designed to operate at high power while exhibiting a well-separated Stark doublet. At a pump power of 65 W and an electric field of 1 kV/cm the laser has delivered over 100 mW cw while exhibiting a frequency splitting of 34 MHz. These parameters indicate that this laser would be suitable for use in the present generation of modulated interferometers on large thermonuclear plasma devices. The achieved modulation frequency is more than an order of magnitude higher than could be achieved by using standard techniques.

• DOE Contract Number: AC02-76CH03073
• OSTI ID: 7010577
• Journal Information: Applied Optics; (United States), Journal Name: Applied Optics; (United States) Vol. 31:24; ISSN 0003-6935; ISSN APOPA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700320 -- Plasma Diagnostic Techniques & Instrumentation-- (1992-)
ALCOHOLS
AMPLIFICATION
DESIGN
ELECTROMAGNETIC RADIATION
FAR INFRARED RADIATION
FREQUENCY MODULATION
GAIN
HYDROXY COMPOUNDS
INFRARED RADIATION
INTERFEROMETRY
LASERS
LIQUID LASERS
METHANOL
MODULATION
OPTICAL PUMPING
ORGANIC COMPOUNDS
PLASMA DIAGNOSTICS
PUMPING
RADIATIONS
STARK EFFECT
USES