Journal
OPTICAL MATERIALS EXPRESS
Volume 5, Issue 4, Pages 794-801Publisher
OPTICAL SOC AMER
DOI: 10.1364/OME.5.000794
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Funding
- NSFC [51072065, 61178073, 60908031, 60908001, 61378004, 61077033]
- Program for NCET in University [NCET-08-0243]
- Opened Fund of the State Key Laboratory on Integrated Optoelectronics
- Tsinghua National Laboratory for Information Science and Technology(TNList) Cross-discipline Foundation
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We demonstrated passively mode-locked ytterbium and erbium doped fiber lasers operating at 1039 and 1560 nm by using a common gold nanorods (GNRs) saturable absorber (SA). The GNRs with designed aspect ratios were mixed with sodium carboxymethylcelluose to form the GNRs SA film. The film had broadband longitudinal SPR (surface plasmon resonance) absorption from 800 to 1800 nm. By inserting the same film into a ytterbium or erbium doped fiber laser cavity pumped by a 980 nm laser diode, stable passively mode-locked laser operation at 1039 or 1560 nm was achieved for a threshold pump power of similar to 100 or similar to 70 mW, respectively. The pulse width, the output power, and the repetition rate of the 1039 nm mode-locked laser were 460 ps, 1.47 mW, and 43.5 MHz for a pump power of similar to 110 mW, respectively. The corresponding output parameters of the 1560 nm mode-locked laser were 2.91 ps, 2 mW, and 35.6 MHz for a pump power of similar to 74 mW, respectively. Our results showed that one GNRs SA could be used for constructing broadband mode-locked lasers. (C) 2015 Optical Society of America
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