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High power optically pumped far infrared laser systems. [D/sub 2/O, CH/sub 3/F, and CH/sub 3/I]

Journal Article · · IEEE J. Quant. Electron.; (United States)
Single mode, 60 to 80 ns pulse width, 50 to 70 kW peak power laser oscillators operating on the 384.6 ..mu..m line of D/sub 2/O have been developed. The characteristic linewidths of these oscillators are less than 25 MHz full width at half maximum which favorably compares with the intrinsic width of 6 to 8 MHz associated with the pulse length of about 60 ns. A 12.7 mJ, 195 kW, 384.6 ..mu..m D/sub 2/O laser oscillator-amplifier combination has been constructed and tested. Although single longitudinal mode operation is attained from this oscillator-amplifier system, amplified spontaneous emission (superradiance) from the amplifier adds low power level wide-bandwidth background radiation. Studies of far infrared lasing action in CH/sub 3/F and CH/sub 3/I are also described.
Research Organization:
Massachusetts Inst. of Tech., Cambridge
OSTI ID:
5251030
Journal Information:
IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. QE-13:6; ISSN IEJQA
Country of Publication:
United States
Language:
English