Picosecond 1.3-μm bismuth fibre laser mode-locked by a nonlinear loop mirror

Journal Article · Thu Dec 01 04:00:00 EST 2016 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QEL16243· OSTI ID:22876149

Khegai, A. M.; Riumkin, K. E.; Firstov, S. V.; Mel'kumov, M. A.; Dianov, E. M. ^[1]; Afanas'ev, F. V.; Khopin, V. F. ^[2]

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1. Fiber Optics Research Center, Russian Academy of Sciences, ul. Vavilova 38, 119333 Moscow (Russian Federation)
2. G.G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, ul. Tropinina 49, 603950 Nizhnii Novgorod (Russian Federation)

The influence of the concentration of bismuth active centres (BACs) in phosphosilicate fibres on their optical parameters, including gain coefficient and non-saturable losses, has been studied. A range of BAC concentrations optimal for designing ultrashort-pulse (USP) lasers was chosen based on the obtained results. The optimised fibre was used to fabricate an all-fibre 1.3-μm USP laser mode-locked by a nonlinear loop mirror, which emits 11.3-ps pulses with an energy of 1.65 nJ and a repetition rate of 3.6 MHz. A bismuth fibre amplifier made it possible to increase the pulse energy to 8.3 nJ. After compression in a diffraction grating compressor, the pulse duration decreased to 530 fs. (paper)

• OSTI ID: 22876149
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 12 Vol. 46; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
AMPLIFIERS
BISMUTH
COMPRESSION
DESIGN
DIFFRACTION GRATINGS
EMISSION
FIBERS
GAIN
LASERS
LOSSES
MIRRORS
NONLINEAR PROBLEMS
PULSES