Tunable High-energy femtosecond soliton fiber laser based on hollowcore photonic bandgap fiber

Reference:

Dupriez, P., Gerome, F., Knight, J. C., Clowes, J. and Wadsworth, W. J., 2009. Tunable High-energy femtosecond soliton fiber laser based on hollowcore photonic bandgap fiber. Proceedings of SPIE - The International Society for Optical Engineering, 7195, 719511.

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Official URL:

http://dx.doi.org/10.1117/12.807209

Abstract

We present an all-fiber high power tunable femtosecond soliton-based source incorporating a picosecond fiber laser and an 8 m long piece of hollow-core photonic bandgap fiber. Strongly chirped high energy 5.5 ps pulses produced by fiber amplification are compressed in the hollow core enabling formation of stable 520 fs-solitons with 77% conversion efficiency. Wavelength tunability was provided by exploiting Raman self-frequency shift of the solitons yielding 33nm tuning range. The transform limited output pulses were frequency doubled using a conventional nonlinear crystal with high conversion efficiency of 60%. Demonstration of a femtosecond green laser tunable from 534 nm to 548 nm with 180nJ pulse energy is also reported.

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