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Proceedings Paper

Generation and amplification of 350 fs, 2 μm pulses in Tm:fiber
Author(s): R. Andrew Sims; Pankaj Kadwani; Lawrence Shah; Martin Richardson
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Paper Abstract

Amplified ultrashort pulses at 2 μm are of great interest for atmospheric sensing, medical, and materials processing applications. We describe the generation and amplification of femtosecond 2 μm pulses in thulium doped silica fiber. Mode-locked eye-safe laser pulses at ~2 μm were generated in a Tm:fiber oscillator using a single-walled carbon nanotube saturable absorber. Stable mode-locking was achieved at a repetition rate of 70 MHz with soliton pulses reaching energies of ~40 pJ with a spectral bandwidth of ~8 nm. Autocorrelation measurements indicated bandwidth limited pulses of ~500 fs duration. This oscillator was used to seed a Tm:fiber amplifier in both free space and fiber coupled configurations. Effects of dispersion compensation and pulse amplification are reported.

Paper Details

Date Published: 22 February 2011
PDF: 6 pages
Proc. SPIE 7914, Fiber Lasers VIII: Technology, Systems, and Applications, 79141L (22 February 2011); doi: 10.1117/12.877765
Show Author Affiliations
R. Andrew Sims, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Pankaj Kadwani, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Lawrence Shah, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Martin Richardson, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 7914:
Fiber Lasers VIII: Technology, Systems, and Applications
Jay W. Dawson, Editor(s)

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