期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 22, 期 1, 页码 9-11出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2009.2035325
关键词
Carbon nanotubes; fiber Bragg grating (FBG); Q-switching; tunable laser
资金
- Natural Science and Engineering Research Council of Canada (NSERC)
An all-fiber tunable passively-switched erbium-doped fiber (EDF) laser is presented. Saturable absorbers are constructed by optically driven deposition of single-wall carbon nanotubes on fiber connectors. A low pump threshold of 11.1 mW is achieved. Self-mode-locking effect is also observed, and it could be suppressed by splicing an extra unpumped EDF into the laser ring cavity. The laser can be tuned by applying axial strain on the fiber Bragg grating which serves as a narrowband external mirror of the cavity.
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