Wavelength sliced self-seeded pulsed laser

Details Wavelength sliced self-seeded pulsed laser Wavelength sliced self-seeded pulsed laser

1998-05-01

2000-11-14

Kim, Robert H.

Coherent light generators

Optical fiber laser

372 6, 372102, 372 30, 372 64, 372 66, 372 70, 372 69, 372 26, 372 12, 372 13, H01S 330, H01S 313, H01S 310, H01S 3115, H01S 3117

Patent

active

061480118

ABSTRACT:
A laser to produce pulses of light having predetermined spectral shapes, comprising a waveguide, an optical pump source, a gain medium to produce seed radiation, and a modulator and an array of Bragg gratings to modify the properties of the seed radiation. Once generated by the gain medium, the seed radiation propagates in the waveguide where it is first pulsed by the modulator. The resulting pulses are then selectively reflected by the Bragg gratings, which separates different spectral components of the reflected beam. This reflected beam then travels back to the modulator, which is timed to let only the desired spectral components go through. In this manner the laser is self-seeded and allows spectrum and wavelength selection from pulse to pulse.

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