Silicon Fabry-Perot interferometer as an optical FIR component - Application to variable couplers with uniform transmission of FIR optically-pumped lasers

Journal Article · Sun Jun 01 04:00:00 EDT 1980 · Int. J. Infrared Millim. Waves; (United States)

DOI:https://doi.org/10.1007/BF01007115· OSTI ID:5636502

Julien, F; Lourtioz, J M

The far-infrared characteristics of the double silicon etalon Fabry-Perot (FP) reflector are investigated. Measurements are reported at short FIR wavelengths. The low IR and FIR absorption and the high optimum reflectivity of this device allow convenient optimization of the coupling conditions of CW optically pumped FIR lasers. Three sets of Si FP reflectors when chosen to cover complementary regions of the spectrum are adequate to cover between them most of the FIR range. Using such a coupler respective output powers of 70 mW and 85 mW are obtained with the 70-micron and 118-micron CH/sub 3/OH lasers operating in the EH(11) mode for approximately 16 W pump power injected in the FIR cavity. The variable reflector is also used to determine the unsaturated laser gain.

• Research Organization: Paris XI, Universite, Orsay, Essonne, France
• OSTI ID: 5636502
• Journal Information: Int. J. Infrared Millim. Waves; (United States), Journal Name: Int. J. Infrared Millim. Waves; (United States) Vol. 1; ISSN IJIWD
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ABSORPTION
COUPLING
ELECTROMAGNETIC RADIATION
ELEMENTS
FABRY-PEROT INTERFEROMETER
FAR INFRARED RADIATION
INFRARED RADIATION
INTERFEROMETERS
LASER RADIATION
LASERS
MEASURING INSTRUMENTS
OPTICAL PROPERTIES
OPTICAL PUMPING
PHYSICAL PROPERTIES
PUMPING
RADIATIONS
SEMIMETALS
SILICON
SPECTRAL REFLECTANCE