Soliton laser

Details Soliton laser Soliton laser

1986-04-10

1987-01-06

Davie, James W.

Coherent light generators

Raman laser

372 6, 372 18, 372 20, 372 25, 372 93, 350 9615, H01S 3098

Patent

active

046352635

ABSTRACT:
A portion of the pulsed output of a 3-mirror, folded, astigmatically compensated cavity of a c.w., mode-locked, color center laser is coupled into a single-mode, polarization-preserving optical fiber. Following compression of the pulses by their propagation through the fiber, the shortened pulses, which take the form of essentially solitons, are fed back into the laser cavity so as to coincide and be in phase with the pulses in the laser cavity. Through the process of stimulated emission in the color center crystal, the injected pulses force the laser itself to produce shorter pulses of essentially the same shape as the solitons. Also described are embodiments employing a mode-locked semiconductor, fiber-Raman laser, and unidirectional pulse propagation in the fiber. Two of the fiber-Raman laser embodiments have separate gain and pulse shaping sections of optical fiber joined by an optical fiber directional coupler.

REFERENCES:
patent: 4136929 (1979-01-01), Suzaki
patent: 4493528 (1985-01-01), Shaw et al.
patent: 4515431 (1985-05-01), Shaw et al.

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