Monolithic all-PM femtosecond Yb-fiber laser stabilized with a narrow-band fiber Bragg grating and pulse-compressed in a hollow-core photonic crystal fiber

Dmitry Turchinovich, Xiaomin Liu, Jesper Lægsgaard

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We report on an environmentally stable self-starting monolithic (i.e. without any free-space coupling) all-polarization-maintaining (PM) femtosecond Yb-fiber laser, stabilized against Q-switching by a narrow-band fiber Bragg grating and modelocked using a semiconductor saturable absorber mirror. The laser output is compressed in a spliced-on hollow-core PM photonic crystal fiber, thus providing direct end-of-the-fiber delivery of pulses of around 370 fs duration and 4 nJ energy with high mode quality. Tuning the pump power of the end amplifier of the laser allows for the control of output pulse bandwidth and duration. Our experimental results are in good agreement with the theoretical predictions.
Original languageEnglish
JournalOptics Express
Volume16
Issue number18
Pages (from-to)14004-14014
ISSN1094-4087
DOIs
Publication statusPublished - 2008

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