Development of a 10.6-micron Laser Modulator |
Common terms and phrases
10.6-MICRON LASER MODULATOR 1000 volts peak 11 WAVELENGTH microns 12 microns 16 microns AMPLITUDE MODULATION applied voltage bandwidth from dc birefringence cadmium sulfide coefficient of GaAs coefficient of gallium compact quarter-wave plate cos² cutting and polishing dation depth of modulation DESIGN EQUATIONS electric field Electro-optic Coefficient 41 ELECTRO-OPTIC CRYSTAL STATIC electro-optic effect electro-optic modulator external transmittance Figure 1(a frequencies from dc function of wavelength GaAs crystal GaAs was measured gallium arsenide gallium-arsenide crystal germanium polarizers gigahertz Goddard Space Flight Greenbelt Hirschmann Goddard Space index of refraction infrared modulation LIGHT BEAM POLARIZER loss tangent material for infrared microwave modulation was constant modulator of Figure parallel polarizers peak modulating signal plate and polarizers polarizers were developed reflection losses retardation shown in Figure Space Flight Center Sterzer T. E. Walsh Radio thermal conductivity transmittance is given unclamped electro-optic coefficient UNMODULATED LIGHT BEAM Walsh Radio Corporation wave plate wavelength range 0.9