Journal
OPTICS EXPRESS
Volume 22, Issue 24, Pages 29708-29713Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.22.029708
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Funding
- Academic Research Fund Tier 2 Grant of Ministry of Education (MOE), Singapore [ARC26/14]
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We demonstrate the generation of dark pulses from carbon nanotube (CNT) incorporated erbium-doped fiber ring lasers with net anomalous dispersion. A side-polished fiber coated with CNT layer by optically-driven deposition method is embedded into the laser in order to enhance the birefringence and nonlinearity of the laser cavity. The dual-wavelength domain-wall dark pulses are obtained from the developed CNT-incorporated fiber laser at a relatively low pump threshold of 50.6 mW. Dark pulses repeated at the fifth-order harmonic of the fundamental cavity frequency are observed by adjusting the intra-cavity polarization state. (C) 2014 Optical Society of America
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