Nonlinear polarization pulse shaping model locked fiber laser at one micron with photonic crystal (PC), photonic bandgap (PBG), or higher order mode (HOM) fiber
AssigneePolarOnyx, Inc.
InventorJian Liu
Life of this patent
Estimating the term…
Abstract
A fiber laser cavity that includes a laser gain medium for receiving an optical input projection from a laser pump, wherein the laser cavity further includes a normal dispersion fiber segment with a β″>0 where β″ representing a fiber dispersion, and an anomalous dispersion fiber segment with the β″<0 for generating a net anomalous dispersion for balancing a self-phase modulation (SPM) and a dispersion induced pulse broadening/compression in the fiber laser cavity for generating an output laser with a transform-limited pulse shape wherein the segment with the anomalous dispersion further includes a Photonic Crystal (PC), a Photonic Bandgap (PBG) or a higher order mode (HOM) fiber.
Claims25
A fiber laser cavity comprising a laser gain medium for receiving an optical input projection from a laser pump, wherein said fiber laser cavity further comprising:
- a normal dispersion fiber segment with a β″>0 where β″ representing a fiber dispersion, and an anomalous dispersion fiber segment with said β″<0 for generating a net anomalous dispersion for balancing a self-phase modulation (SPM) and a dispersion induced pulse broadening/compression in said fiber laser cavity for generating an output laser pulses wherein said segment with said anomalous dispersion further comprising a Photonic Crystal (PC), a Photonic Bandgap (PBG) or a higher order mode (HOM) fiber.
A method for generating an output laser from a laser cavity comprising a laser gain medium by projecting an input laser from a laser pump into said fiber laser cavity for amplifying and compacting a laser pulse in said gain medium, the method comprising:
- forming said laser cavity by employing a normal dispersion fiber segment with a β″>0 where β″ representing a fiber dispersion and an anomalous dispersion fiber segment with a β″<0 for generating a net negative dispersion by using a Photonic Crystal (PC), a Photonic Bandgap (PBG) or a higher order mode (HOM) fiber to balance a dispersion induced compression/stretching and a self-phase modulation (SPM) in said fiber laser cavity for generating mode locked ultrafast optical pulses.
Dependencies are inferred from the claim text.