All-Fiber Passively Q-Switched Laser Based on Tm3+-Doped Tellurite Fiber
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Abstract
We report all-fiber passively Q-switched Tm3+-doped tellurite fiber lasers. The composite tellurite fiber is specially designed to improve the mechanical strength. Both carbon nanotubes (CNTs) and semiconductor saturable absorber mirror (SESAM) are inserted separately into the laser cavities as saturable absorbers to demonstrate a fiber integrated setup. In a short, 9 cm tellurite fiber, 1.86 μm pulsed lasers without self-mode-locking effect are demonstrated by in-band pumping at 1.59 μm. An average power of 84 mW is obtained in CNT pulsed laser with 860 ns duration while in SESAM pulsed laser, the average power reaches 21mW with 516 ns pulse width.
Description
Keywords
Tellurite glass fiber, fiber lasers, Q-switching
Journal Title
IEEE Photonics Technology Letters
Conference Name
Journal ISSN
1041-1135
1941-0174
1941-0174
Volume Title
27
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Publisher DOI
Sponsorship
This work was supported in part by the National Natural Science Foundation of China under Grant 61308084, Natural Science Foundation of Shanghai under Grant 12ZR1451600, and Granted Membership of Youth Innovation Promotion Association, Chinese Academy of Sciences.