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Beam-path conditioning for high-power laser systems

Technical Report ·
OSTI ID:5688450
; ;
Heating of mirrors and windows by high-power radiation from a laser transmitter produces turbulent density gradients in the gas near the optical surfaces. If the gradients are left uncontrolled, the resulting phase errors reduce the intensity on the target and degrade the signal returned to a receiver. Beam path conditioning maximizes the efficiency of the optical system by alleviating thermal turbulence within the beam path. Keywords: High power radiation, Beam path, Optical surface, Laser beams, Reprints. (JHD)
Research Organization:
Massachusetts Inst. of Tech., Lexington, MA (USA). Lincoln Lab.
OSTI ID:
5688450
Report Number(s):
AD-A-230455/8/XAB; JA--6530; CNN: F19628-90-C-0002
Country of Publication:
United States
Language:
English

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Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
DENSITY
ELECTROMAGNETIC RADIATION
EQUIPMENT
ERRORS
HEATING
LASER MIRRORS
LASER RADIATION
LASERS
MIRRORS
OPENINGS
OPTICAL EQUIPMENT
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
SURFACES
TARGETS
THERMAL RADIATION
TURBULENCE
WINDOWS