Optical functional amplifying method and optical functional ampl

Details Optical functional amplifying method and optical functional ampl Optical functional amplifying method and optical functional ampl

1998-01-07

2000-09-26

Moskowitz, Nelson

Optical: systems and elements

Optical amplifier

Dispersion compensation

359139, 359344, 372 11, 372 30, H01S 310, H04B 1012

Patent

active

061249661

ABSTRACT:
An optical functional amplifying device suitable for use in an optical gate which operates at a very high repetition frequency such as a frequency exceeding 100 GHz. The device has a semiconductor laser amplifier having a gain section and a saturable absorber section, a first optical coupler for coupling an input signal optical pulse train having a wavelength whose value is set near the absorption edge of the saturable absorber section in the semiconductor laser amplifier, a second optical coupler for coupling a gate optical pulse train having a wavelength shorter than that of the input signal optical pulse train to the semiconductor laser amplifier, and a selector for separating and extracting a signal optical pulse train emitted from the semiconductor laser amplifier from the gate optical pulse train. The repetition frequency of the gate optical pulse train is set to one N-th the basic frequency of the input signal optical pulse train, N being a natural number, to establish timing synchronization between the gate optical pulse train and the input signal optical pulse train.

REFERENCES:
patent: 5761228 (1998-06-01), Yano
patent: 5796765 (1998-08-01), Lucek et al.
patent: 5799024 (1998-08-01), Bowers et al.
patent: 5844932 (1998-12-01), Thony et al.
Barnsley et al, IEEE Photonics Tech. Lett., vol. 3, #9, pp. 832-834; abst. only herewith, Sep. 1991.
I. Glesk, et al. "Demonstration of all-optical demultiplexing of TDM data at 250 Gbit/s," Electronics Letters, vol. 30, No. 4, pp. 339-341 (Feb. 17, 1994).

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