Polarization switching in a strip grating coupled optically pumped submillimeter laser

Journal Article · Sun Apr 13 23:00:00 EST 1986 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.96623· OSTI ID:6068341

Whitbourn, L B; Macfarlane, J C; Falconer, I S; James, B W; Stimson, P A

It is shown that an optically pumped formic acid laser operating at 394 or 433 ..mu..m can lase on two sets of nondegenerate orthogonally polarized modes when a strip grating output coupler is used. The laser output polarization can be switched from parallel to perpendicular to the strips by a small cavity length change which is in accordance with calculated reflection phase changes of the grating for the two polarizations. For 30 W pump power approx.5 mW can be obtained at 394 ..mu..m in either polarization when the grating strips are oriented perpendicular to the pump polarization.

• Research Organization: Commonwealth Scientific and Industrial Research Organisation, Division of Applied Physics, Lindfield, New South Wales, 2070, Australia
• OSTI ID: 6068341
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 48:15; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFICATION
CARBOXYLIC ACIDS
ELECTROMAGNETIC RADIATION
FAR INFRARED RADIATION
FORMIC ACID
GAIN
GAS LASERS
GRATINGS
INFRARED RADIATION
LASER CAVITIES
LASER RADIATION
LASERS
MODULATION
MONOCARBOXYLIC ACIDS
OPERATION
OPTICAL PUMPING
ORGANIC ACIDS
ORGANIC COMPOUNDS
POLARIZATION
PUMPING
RADIATIONS