Method and device for generating optical pulses

Details Method and device for generating optical pulses Method and device for generating optical pulses

1994-01-21

1995-12-19

Bovernick, Rodney B.

Coherent light generators

Particular beam control device

Control of pulse characteristics

385 27, 372 6, 372 19, 372 32, H01S 3133, H01S 3098

Patent

active

054775558

ABSTRACT:
Method and device for generating optical pulses.
According to the invention, in order to generate an optical signal in the form of optical pulses, a semiconductor laser (2) is made to function as gain commutation, and a portion of the light produced by this laser is reinjected into the laser. The light to be reinjected is previously filtered by an optical filter (12) which is tuned to one of the modes of the laser. Another portion of the light produced by the laser is used as an optical signal after having been filtered this portion by the optical filter.

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patent: 5181213 (1993-01-01), Shinokura
patent: 5309455 (1994-05-01), Adachi et al.
patent: 5359612 (1994-10-01), Dennis et al.
Electronics Letters, vol. 28, No. 3, Jan. 30, 1992, pp. 224-226, M. Cavalier et al. `Picosecond Wavelength-tunable semiconductor laser pulses with . . . `.
Optics Letters, vol. 15, No. 12, Jun. 15, 1990, New York, pp. 715-717, M. Nakazawa et al. `Transform-limited pulse generation in the gigahertz . . . `.
Proceedings of the 14th European Conference On Optical Communication, 11-15 Sep. 1988, Part I, pp. 320-323, H. Izadpanah, `Picosecond optical pulse . . . `.
"Miniature packaged actively mode-locked semiconductor laser with tunable 20ps transform limited pulses", D. M. Bird et al., Electronic Letters, Dec. 6, 1990, vol. 26, No. 25, pp. 2086 and 2087.
"Switch inversion and polarization sensitivity of the nonlinear loop mirror" N. Finlayson et al., Optics Letters, vol. 17, No. 2, (Jan. 1992), pp. 112-114.

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