Coherent light generators – Particular resonant cavity – Folded cavity
Patent
1992-02-18
1993-05-18
Davie, James W.
Coherent light generators
Particular resonant cavity
Folded cavity
372 18, 372 25, H01S 3098
Patent
active
052127117
ABSTRACT:
The invention is an improvement of a harmonically mode-locked ring laser of the type comprising means (12) defining an optical path, an active laser medium (15) for emitting coherent light to be transmitted along the optical path, and means (18) included in the optical path for causing the light to propagate along the path as a train of pulses having a period which is substantially equal to the transit time of light pulses in the optical path divided by an integer. The improvement is characterized in that the optical path includes a Fabry-Perot optical resonator (24) having a free spectral range substantially equal to the pulse repetition rate of the optical pulses in the ring laser. Under this condition, the Fabry-Perot resonator tends to equalize the energy, shape and width of the individual pulses.
REFERENCES:
patent: 4400814 (1983-08-01), Fork et al.
patent: 4700339 (1987-10-01), Gordon et al.
patent: 4727553 (1988-02-01), Fork et al.
patent: 4881790 (1989-11-01), Molenauer
patent: 5035481 (1991-07-01), Mollenauer
patent: 5039199 (1991-08-01), Mollenauer et al.
patent: 5042040 (1991-08-01), Harvey et al.
"Mode-Locked Erbium-Doped Fiber Laser with Soliton Pulse Shaping," J. D. Kafka et al., Optics Letters, vol. 14, No. 22, Nov. 15, 1989, pp. 1269-1271.
"Picosecond Pulse Generation from Actively Mode-Locked Erbium-Doped Fibre Laser," A. Takada et al., Electronics Letters, vol. 26, No. 3, Feb. 1, 1990, pp. 216-217.
"Fabrication and Characterization of Low-Loss Optical Fibers Containing Rare-Earth Ions," S. B. Poole et al., Journal of Lightwave Technology, vol. LT-4, No. 7, Jul. 1986, pp. 870-875.
"Erbium Fibre Soliton Laser," by K. Smith et al., Electronics Letters, vol. 26, No. 15, Jul. 19, 1990, pp. 1149-1151.
Harvey George T.
Mollenauer Linn F.
Anderson R. B.
AT&T Bell Laboratories
Davie James W.
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