Numerical Analysis of CW Laser Propulsion.

CW LASER Control of MMICs

The results of our research on the electro-optical control of MMICs are shown in this paper. Two different devices have been investigated: a GaAs chip monolithic amplifier at S band, and an AlGaAs chip MMIC voltage controlled oscillator at Ku. The possibilities of optical control of the amplifier are evidenced as follows: if the amplifier operates with the same biasing, the gain can be opticall...

High Pressure Cw Chemical Laser

Computer controlled cw laser spectrometer.

A computer controlled cw UV-visible dye laser source for spectroscopic use has been developed. Computer control facilitates both continuous single-frequency scanning and data acquisition. With 4 W of Ar-ion laser pump power, such a spectrometer can generate in excess of 1 W of cw single-frequency power in the visible and up to 1 mW in the UV by using extracavity nonlinear optical mixing. The la...

Mode-locking of a CW laser

Short pulses are useful in a number of applications in optics, e.g., time resolved spectroscopy, sampling of fast electronics, and communications. This has led to a number of mode-locking techniques to obtain such pulses, for example acousto-optic, injection, synchronous-pump, collidingpulse mode-locking, and Kerr-lens mode-locking. Using the latter two techniques, pulses of less than 100 fs du...

cw laser annealing of Nb3AI and Nb3Si

cw laser annealing has been applied to synthesize the metastable A 15 superconductors, Nb3AI and Nb3Si. Qualitative agreement with the equilibrium phase diagrams have been obtained for the Nb-AI system. Laser annealing permits the high-temperature A15 phase to be fast quenched to room temperature without decomposition. Subsequent use of multiple low-temperature laser scans raises the supercondu...