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A simple sub-nanosecond ultraviolet light pulse generator with high repetition rate and peak power.

Authors
Type
Published Article
Journal
Review of Scientific Instruments
0034-6748
Publisher
American Institute of Physics
Publication Date
Volume
84
Issue
8
Pages
83102–83102
Identifiers
DOI: 10.1063/1.4817538
PMID: 24007048
Source
Medline

Abstract

We present a simple ultraviolet sub-nanosecond pulse generator using commercial ultraviolet light-emitting diodes with peak emission wavelengths of 290 nm, 318 nm, 338 nm, and 405 nm. The generator is based on step recovery diode, short-circuited transmission line, and current-shaping circuit. The narrowest pulses achieved have 630 ps full width at half maximum at repetition rate of 80 MHz. Optical pulse power in the range of several hundreds of microwatts depends on the applied bias voltage. The bias voltage dependences of the output optical pulse width and peak power are analysed and discussed. Compared to commercial UV sub-nanosecond generators, the proposed generator can produce much higher pulse repetition rate and peak power.

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