Journal
JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume 33, Issue 11, Pages 2332-2336Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2015.2410912
Keywords
Graphene; inner air-cavity; mode locking; saturable absorber
Funding
- National Natural Science Foundation of China [61377094]
- Hong Kong Government [PolyU 152163/14E]
- Hong Kong Polytechnic University Research [4-ZZE6, 4-BCBF, G-YM19]
- University of Jinan [XBS1438]
- Shandong Province [BS2014DX018]
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We experimentally demonstrate a passively mode-locked fiber laser operation by using a saturable absorber based on graphene deposited on slightly tapered optical fiber with inner air-cavity. Such a saturable absorber enables a strong light-graphene interaction owing to the evanescent field of the excited cladding mode, and as a result, stable passively mode-locked laser pulses with pulsewidth of 674 fs have been generated, and in addition, a harmonic mode-locking operation can also be achieved.We experimentally demonstrate a passively mode-locked fiber laser operation by using a saturable absorber based on graphene deposited on slightly tapered optical fiber with inner air-cavity. Such a saturable absorber enables a strong light-graphene interaction owing to the evanescent field of the excited cladding mode, and as a result, stable passively mode-locked laser pulses with pulsewidth of 674 fs have been generated, and in addition, a harmonic mode-locking operation can also be achieved.
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