Automatic dispersion compensation in amplification for short pulse fiber laser system
AssigneePolarOnyx, Inc.
InventorsJian Liu, Jiangfan Xia
Life of this patent
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Abstract
A fiber Chirped Pulse Amplification (CPA) laser system includes a fiber mode-locking oscillator for generating a laser for projecting to a fiber stretcher for stretching a pulse width of the laser wherein the stretcher further comprising a Photonic Bandgap (PBG) fiber having a lower nonlinearity and an abnormal dispersion than a solid core fiber for connecting and transmitting a laser from the stretcher to a multistage amplifier for amplifying the laser into an output laser whereby a separate compressor is not required.
Claims21
A fiber Chirped Pulse Amplification (CPA) laser system, comprising:
- a seed laser configured to produce a first laser pulse having a first pulse width;
- a fiber-based stretcher configured to receive the first laser pulse and output a second laser pulse having a second pulse width wider than the first pulse width, wherein the fiber-based stretcher comprises a hollow core configured to guide the first laser pulse and a plurality of holes surrounding the hollow core, wherein the plurality of holes have substantially the same width;
- and
- a solid-core fiber component configured to simultaneously amplify and compress the second laser pulse to output a third laser pulse having a third pulse width shorter than the second pulse width, wherein the third pulse width is shorter than 200 fs and the third laser pulse has energy higher than 50 nj.
A fiber Chirped Pulse Amplification (CPA) laser system, comprising:
- a seed laser configured to produce a first laser pulse having a first pulse width;
- a fiber-based stretcher configured to receive the first laser pulse and output a second laser pulse having a second pulse width wider than the first pulse width, wherein the fiber-based stretcher comprises a hollow core configured to guide the first laser pulse and a plurality of holes surrounding the hollow core, wherein the plurality of holes have substantially the same width and are disposed in a substantially periodic pattern;
- and
- a unitary fiber component comprising a solid core and configured to simultaneously amplify and compress the second laser pulse to output a third laser pulse having a third pulse width shorter than the second pulse width, wherein the third pulse width is shorter than 200 fs and the third laser pulse has energy higher than 50 nj.
Dependencies are inferred from the claim text.