Optical short pulse generating device

Details Optical short pulse generating device Optical short pulse generating device

1994-03-16

1995-07-18

Moore, David K.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359162, 359181, 372 26, 372 38, H04B 1004

Patent

active

054346932

ABSTRACT:
An optical short pulse generating device is disclosed, in which semiconductor laser light of a fixed intensity is launched into a first semiconductor electroabsorption optical modulator which is driven by a 0V or forward bias voltage and a sinusoidal voltage, and the output light from the first optical modulator is launched into a second electroabsorption optical modulator to which is applied a bias voltage and a sinusoidal voltage having delayed from the said sinusoidal voltage for a period of time corresponding to the phase reversal thereof, whereby it is possible to generate optical short pulses of a repetition frequency twice higher than the oscillation frequency of a sinusoidal voltage generator.

REFERENCES:
patent: 5325225 (1994-06-01), Suzaki et al.
Taga et al. "Bit Error Rate Measurement of 2-5 Gbit/s Data Modulated Solitons Generated by InGaAsP Modulator Using a Circulating Loop" Electronics Letters vol. 28, No. 13, Jun. 1992, pp. 1280-1281.
Suzuki et al. "Transform-Limited Optical Pulse Generation up to 20-GHz Repetition Rate by a Sinusoidally Driven InGaAsP Electroabsorption Modulator" Journal of Lightwave Technology, vol. 11, No. 3, Mar. 1993, pp. 468-473.

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