標題: High-quality and Large-size Topological Insulator Bi2Te3-Gold Saturable Absorber Mirror for Mode-Locking Fiber Laser
作者: Chen, Hou-Ren
Tsai, Chih-Ya
Cheng, Hsin-Ming
Lin, Kuei-Huei
Yen, Po-Hsiu
Chen, Chyong-Hua
Hsieh, Wen-Feng
光電工程學系
光電工程研究所
Department of Photonics
Institute of EO Enginerring
公開日期: 5-Dec-2016
摘要: A novel high-quality, large-size, reflection-type topological insulator Bi2Te3-Gold (BG) film-based nonlinear optical modulator has been successfully fabricated as a two-dimensional saturable absorber mirror (SAM) by pulsed laser deposition (PLD). This BG-SAM possesses saturation fluence of 108.3 mu J/cm(2), modulation depth (Delta R) of 6.5%, non-saturable loss of 38.4%, high damage threshold above 1.354 mJ/cm(2) and excellent uniformity providing for the generation of passive mode-locked (ML) pulses for erbium-doped fiber lasers (EDFLs) on a large sample area. Under 124 mW 976 nm pumping, We obtained 452-fs continuous-wave ML pulses with pulse energy of 91 pJ and full width at halfmaximum (FWHM) of 6.72-nm from this EDFL. The results clearly evidence that the PLD is an efficient method for fabricating BG-SAM that is suitable for a compact ultrafast ML fiber laser system.
URI: http://dx.doi.org/10.1038/srep38444
http://hdl.handle.net/11536/132749
ISSN: 2045-2322
DOI: 10.1038/srep38444
期刊: Scientific Reports
Volume: 6
起始頁: 0
結束頁: 0
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