INFRARED INTENSITY MODES MODULATION OF YIG USING LONG WAVELENGTH FREQUENCIES MAGNETOSTATIC B.Yazgan* AT MICROWAVE ABSTRACT Surface and volume magnetostatic mode resonances of an axially magnetized YIG rod is used for the diffraction and intensity modulation of 1,15M He-Ne laser beam.YIG crystal is excited with a dielectric microwave resonator at S band.Amplitude modulation of the microwave



PROPAGATION PROPERTIES OF OPTICAL MODES IN DIELECTRIC THIN FILM FIBER WITH CONVEX SURFACE Yasumitsu Miyazaki BY CONFORMALMAPPING TECHNIQUE ABSTRACT Single material fibers made of low loss material may be superior to cladded or mixed material fibers with respect to optical propagation properties concerned with absorption losses. Thin film fibers with convex surface have self focussing propert





LASER AMPLIFICATION BY ELECTRON BEAMS. A. H. Beck >:< and Po Chung. + ABSTRACT. This paper describes a klystron amplifier designed to operate at optical frequencies. The theory of the interaction between light waves constrained by thin, rectangular light guides and transverse electron beams is considered. The electron beams are shown to be velocity modulated at emergence from the intense

COMPUTER OPTIMIZATION OF BROAD-BAND TUNABLE LOADS Mart Altmae and Lars Sander ABSTRACT ' Numerical optimization is used to design broad-band tunable circuits, with a given reflection coefficient. The design of a varactor tuned Gunn oscillator serves as an example of this approach. Constraints on the variables are given as bounds for realizability, specifications on the tuning variable an

SIMPLIFIED BY USE OF APPROACH TO SENSITIVITY PARAMETERS OPTIMIZATION SCATTERING G. Epprecht C. Rauscher, ABSTRACT The optimal immunization of a microwave network against parameter tolerances can be achieved more simply than by a "worst case" approach if certain sacrifices in final conclusiveness are accepted. The paper describes such a simplified procedure and discusses some practical aspec

COMPUTER SIMULATION OF SWITCHING IN MICROWAVE PIN DIODES M.D. ProfiresGu* Abstract Computer simulations have been carried out of switching behaviour and design optimization of microwave PIN structures used in millimetre-wave communications. The simulation operates in the time domain and uses an implicit iterative method to obtain the internal distributions and terminal response of PIN diodes