High energy, ultrashort pulse ring fiber laser having a linear dispersion compensator with chirped Bragg gratings
First Claim
1. A high energy, ultrashort pulse fiber laser, comprising:
- a passively mode locked, all optical fiber ring laser including a loop of optical fiber doped with a material that provides gain that defines a ring lasing cavity;
a pump light source optically coupled to said loop of optical fiber, anda linear dispersion compensator including at least one chirped Bragg fiber grating optically coupled to said closed loop of optical fiber.
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Accused Products
Abstract
A high energy, ultra short pulse ring fiber laser is provided that includes a passively mode locked, all optical fiber laser formed from a closed loop of optical fiber doped with erbium or other rare earth metal, a pump light source optically coupled to the loop of optical fiber, and a linear dispersion compensator that includes a pair of chirped Bragg gratings with substantially equal but opposite sign dispersion. The difference in dispersion between the pair of chirped Bragg gratings is adjusted so that it is substantially equal and opposite to the dispersion generated in the loop of optical fiber. The linear dispersion compensator includes a tuner which can individually stretch or compress the pair of chirped fiber Bragg gratings such that one of the gratings can be adjusted to cancel out the dispersion of the ring laser cavity, while the other grating is adjusted to eliminate third order dispersion of the cavity.
16 Citations
20 Claims
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1. A high energy, ultrashort pulse fiber laser, comprising:
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a passively mode locked, all optical fiber ring laser including a loop of optical fiber doped with a material that provides gain that defines a ring lasing cavity; a pump light source optically coupled to said loop of optical fiber, and a linear dispersion compensator including at least one chirped Bragg fiber grating optically coupled to said closed loop of optical fiber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 19)
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11. A high energy, ultrashort pulse fiber laser, comprising:
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a passively mode locked, all optical fiber laser including a loop optical fiber doped with a material that provides gain; a pump light source optically coupled to said loop of optical fiber, and a linear dispersion compensator including a pair of chirped Bragg gratings with opposite sign dispersion optically couples to said loop of optical fiber such that a net difference in dispersion between said pair of chirped Bragg gratings is substantially equal and opposite to dispersion generated in said loop of optical fiber. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 20)
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Specification