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Generation and Amplification of 350 fs, 2 μm pulses in Tm:fiber

Identifieur interne : 000228 ( Pascal/Checkpoint ); précédent : 000227; suivant : 000229

Generation and Amplification of 350 fs, 2 μm pulses in Tm:fiber

Auteurs : R. Andrew Sims [États-Unis] ; Pankaj Kadwani [États-Unis] ; Lawrence Shah [États-Unis] ; Martin Richardson [États-Unis]

Source :

RBID : Pascal:11-0365459

Descripteurs français

English descriptors

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.


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Pascal:11-0365459

Le document en format XML

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