Wavelength sliced self-seeded pulsed laser

Abstract From the Canadian patent

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 …