Subnanosecond risetime high power pulse generation using photoconductive bulk GaAs devices

A. H. Kim; Maurice Weiner; Robert J. Youmans; Robert J. Zeto

doi:10.1117/12.20331

1 August 1990 Subnanosecond risetime high power pulse generation using photoconductive bulk GaAs devices

A. H. Kim, Maurice Weiner, Robert J. Youmans, Robert J. Zeto

Proceedings Volume 1268, Applications of Ultrashort Laser Pulses in Science and Technology; (1990) https://doi.org/10.1117/12.20331
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

Abstract

The interest in fast risetime, high power photoconductive devices stems from several potential applications including pulse, impulse, and high power microwave generation [1, 2]. As the voltage becomes large and the switching speed becomes extremely fast, the generation of high power electrical pulses using photoconductive devices becomes very complicated because of effects such as surface flash-over, stray inductance, stray capacitance, and abrupt impedance transitions. Two ap- proaches were taken to produce maximum output voltage amplitude without degradation in switch risetime. A coaxial transmission line with a switch holder filled with a high dielectric strength liquid was fabricated for long pulsewidths ( 2 ns) . For the narrow pulsewidths ( 2 ns) a quasi-radial transmission line was fabricated. By incorporating a photoconductive bulk GaAs device with opposite gridded elec- trodes into these specially designed energy storage elements, and illuminating the switch with a mode-locked Nd:YAG laser, electrical pulses with risetimes of several picoseconds have been realized.

Citation Download Citation

A. H. Kim, Maurice Weiner, Robert J. Youmans, and Robert J. Zeto "Subnanosecond risetime high power pulse generation using photoconductive bulk GaAs devices", Proc. SPIE 1268, Applications of Ultrashort Laser Pulses in Science and Technology, (1 August 1990); https://doi.org/10.1117/12.20331

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available