Active-mode-locking optical-fibre pulsed laser generator having

Details Active-mode-locking optical-fibre pulsed laser generator having Active-mode-locking optical-fibre pulsed laser generator having

1995-05-31

1996-10-29

Ullah, Akm E.

Optical waveguides

With optical coupler

Plural

359188, G02B 628, H04B 1004

Patent

active

055704387

ABSTRACT:
A high-transmission-speed optical connection comprising a pulse-generation laser source, optical-fibre transmission means and a receiver, in which said optical-fibre means forms an optical fibre path, such that a pulsed signal of the soliton type is subjected to a broadening in time greater than 50% by effect of the chromatic dispersion, in which said laser source comprises an active and harmonic mode-locking optical-fibre laser wherein the fibre length, filter pass-band and power in the cavity are selected for emitting pulses of a Gaussian temporal profile having such a duration and bandwidth that, at the receiver, the duration of the pulses themselves is not more than 15% higher than the duration at the emission.

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Electronics Letters-vol. 29, No. 20, 30 Sep. 1993, Stevenage GB-pp. 1788-1789.
IEEE Photonics Technology Letters, vol. 3, No. 1, Jan. 1991, New York US pp. 74-76.

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