Optically activated switching in a ZnS/CdTe heterostructure for high-power frozen-wave generation

Eric Donkor; Alain Andriamasy

doi:10.1117/12.138390

2 December 1992 Optically activated switching in a ZnS/CdTe heterostructure for high-power frozen-wave generation

Eric Donkor, Alain Andriamasy

Proceedings Volume 1703, Optical Technology for Microwave Applications VI and Optoelectronic Signal Processing for Phased-Array Antennas III; (1992) https://doi.org/10.1117/12.138390
Event: Aerospace Sensing, 1992, Orlando, FL, United States

Abstract

The design of an integrated monolithic microwave and photonic frozen-wave generator is described. The photonic circuit consist mainly of a number of semiconductor photoconductive switches, actuated by picosecond laser pulses. A pig-tail fiber optic cable bonded to the switches helps to direct the laser pulses to their desired locations. Each switch can hold 10kV, with an on-resistance of less than 1ohm and has a rise time of 50 picoseconds. The switches are designed as ZnS/CdTe double heterostructure photoconductive devices on a semi-insulating CdTe substrate. The microwave circuit components are also designed on the same substrate thereby allowing for monolithic integration of the microwave and photonic circuits. The microwave subsystem uses mainly lumped components and it is designed to support the propagation of transverse electromagnetic (TEM) waves at 20GHz.

Citation Download Citation

Eric Donkor and Alain Andriamasy "Optically activated switching in a ZnS/CdTe heterostructure for high-power frozen-wave generation", Proc. SPIE 1703, Optical Technology for Microwave Applications VI and Optoelectronic Signal Processing for Phased-Array Antennas III, (2 December 1992); https://doi.org/10.1117/12.138390

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