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Low noise femtosecond fiber laser mode-locked using a Single-Walled Carbon Nanotube-based saturable absorber

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6 Author(s)
Martel, G. ; Groupe d''Opt. et d''Optronique, Saint Etienne du Rouvray ; Cabasse, A. ; Hideur, A. ; Lecourt, J.-B.
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By replacing a semiconductor saturable absorber mirror (SESAM) made up of iron doped InGaAs/InP multiple quantum wells (MQW) (Gicquie-Guezo, 2004) by a saturable absorber incorporating nanotubes (SAINT) (Set, 2004) we have drastically decreased the noise level as well as improved the output pulse characteristics delivered by a passively mode-locked Er3+-doped fiber oscillator. Our laser consists of 235 cm-long, highly erbium-doped fiber core-pumped by a single-mode laser diode (120 mw max. power) and pieces of standard telecom fibers . A free space segment settles the cavity in order to manage beam focusing on the SA either constituted of SESAM or SAINT. The latter is made up of SW-CNT obtained by laser ablation of a doped graphitic target.

Published in:

Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on

Date of Conference:

17-22 June 2007