22 March 2013 Chirped pulse amplification in Tm doped fiber using a chirped Bragg grating
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Femtosecond pulses were generated and amplified via chirped pulse amplification in Tm:fiber. The mode-locked oscillator centered at 1975 nm produced 800 fs transform limited pulses with 40 pJ energy at 60 MHz repetition rate. Subsequently, a soliton self-frequency shift in a thulium-doped fiber pumped with a 793 nm diode was used to amplify pulses to 3 nJ, shift the center wavelength, and reduce the pulse duration to 150 fs. This pulse was tuned to 2020 nm to match the center wavelength of a chirped Bragg grating. The pulses were stretched to >160 ps pulses, amplified to 85 nJ in single-mode Tm:fiber and recompressed to 400 fs.
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Robert Andrew Sims, Robert Andrew Sims, Pankaj Kadwani, Pankaj Kadwani, Lawrence Shah, Lawrence Shah, Martin Richardson, Martin Richardson, } "Chirped pulse amplification in Tm doped fiber using a chirped Bragg grating", Proc. SPIE 8601, Fiber Lasers X: Technology, Systems, and Applications, 86012P (22 March 2013); doi: 10.1117/12.2004112; https://doi.org/10.1117/12.2004112

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