Reshaping device for optical short pulses

Details Reshaping device for optical short pulses Reshaping device for optical short pulses

1996-05-21

1998-09-08

Moskowitz, Nelson

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359252, 359299, H01S 319, H01S 310

Patent

active

058053271

ABSTRACT:
There is disclosed a reshaping device for optical short pulses to effectively perform reshaping of and eliminate noise from an optical short pulse of a pulse width of pico second order less than a carrier life time. Input optical short pulses are applied to a saturable absorption element, while an assist light of a wavelength longer than that of the input optical signal pulses is also applied to the saturable absorption element to accelerate, by stimulated emission, recombination of excited electrons and holes produced in the saturable absorption element in response to the input optical signal pulses, so that the input optical signal pulses reshaped are derived from the saturable absorption element.

REFERENCES:
patent: 4209690 (1980-06-01), Rentzepis
patent: 5175739 (1992-12-01), Takeuchi et al.
Klann et al, Jour. Appl. Phys., vol. 77, #1, pp. 277-286, Jan., 1995; abstract only herewith.
Abakumov et al, for. Jour. Quant. Elec., vol. 7, #10, pp. 1308-1310, Oct., 1997; abst. only herewith.

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