Coherent light generators – Particular component circuitry – Optical pumping
Patent
1989-05-03
1990-05-22
Sikes, William L.
Coherent light generators
Particular component circuitry
Optical pumping
372 33, 372 81, 372 82, H01S 3097
Patent
active
049282484
ABSTRACT:
A light source driving device for driving a light source such as a semiconductor laser comprises an input voltage generating section for superposing a pulse voltage on a predetermined DC voltage to provide an input voltage, a voltage converting section having an inductor and a step recovery diode, and a driving section having a delay element. The voltage converting section applies the input voltage through the inductor to the step recovery diode to provide a very short pulse voltage. The driving section applies the very short pulse voltage to the light source, and the delay element delays the very short pulse voltage, inverts the polarity thereof, and applies the inverted very short light pulse to the light source.
REFERENCES:
patent: 4635267 (1987-01-01), Cirkel
van der Ziel, J. P. et al., "Generation of Short Optical Pulses in Semiconductor Lasers by Combined dc and Microwave Current Injection", IEEE Journal of Quantum Electronics, vol. QE-18, No. 9, pp. 1340-1350, Sep. 1989.
Lin, C. et al., "Simple Picosecond Pulse Generation Scheme for Injection Lasers", Electronics Letters, vol. 16, No. 15, pp. 600-602, Jul. 17, 1989.
Parker, D. G., et al., "A Low Cost System for Producing Short Optical Pulses", GEC Journal of Research, vol. 4, No. 1, pp. 28-31, (1986).
Hewlett Packard Application Note 918.
Koishi Musubu
Takahashi Akira
Epps Georgia Y.
Hamamatsu Photonics Kabushiki Kaisha
Sikes William L.
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