Tunable Passively Q-switched Erbium-Doped Fiber Laser With Carbon Nanotubes as a Saturable Absorber

Tunable Passively Q-switched Erbium-Doped Fiber Laser With Carbon Nanotubes as a Saturable Absorber

An all-fiber tunable passively Q-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 i...

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Veröffentlicht in:IEEE photonics technology letters 2010-01, Vol.22 (1), p.9-11
Hauptverfasser: Zhou, Da-Peng, Wei, Li, Dong, Bo, Liu, Wing-Ki
Format: Artikel
Sprache:eng
Schlagworte:
Capacitive sensors
Carbon nanotubes
Connectors
Erbium-doped fiber lasers
fiber Bragg grating (FBG)
Laser tuning
Optical pumping
Pump lasers
Q -switching
Ring lasers
Splicing
Tunable circuits and devices
tunable laser
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Beschreibung
Zusammenfassung:An all-fiber tunable passively Q-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.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2009.2035325