Control of fibre laser mode-locking by narrow-band Bragg gratings

The use of narrow-band high-reflectivity fibre Bragg gratings (FBGs) as end mirrors in a fibre laser cavity with passive mode-locking provided by a semiconductor saturable absorber mirror (SESAM) is investigated numerically. The FBG is found to control the energy range of stable mode-locking, which...

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Published inJournal of physics. B, Atomic, molecular, and optical physics Vol. 41; no. 9; pp. 095401 - 095401 (10)
Main Author LAEGSGAARD, J
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 14.05.2008
Institute of Physics
Subjects
Exact sciences and technology
Fiber lasers
Fiber optics
Fundamental areas of phenomenology (including applications)
Gratings
Laser optical systems: design and operation
Lasers
Modulation, tuning, and mode locking
Optical elements, devices, and systems
Optics
Other fiber-optical devices
Physics
Bragg gratings
Saturable absorbers
Semiconductor materials
Mode locked laser
Diffraction gratings
Mirrors
Grating in fiber
Pulse shape
ps range
Fiber lasers
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Summary:The use of narrow-band high-reflectivity fibre Bragg gratings (FBGs) as end mirrors in a fibre laser cavity with passive mode-locking provided by a semiconductor saturable absorber mirror (SESAM) is investigated numerically. The FBG is found to control the energy range of stable mode-locking, which may be shifted far outside the regime of SESAM saturation by a suitable choice of FBG and cavity length. The pulse shape is controlled by the combined effects of FBG dispersion and self-phase modulation in the fibres, and a few ps pulses can be obtained with standard uniform FBGs.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0953-4075
1361-6455
DOI:10.1088/0953-4075/41/9/095401