Tunable Erbium-Doped Fiber Lasers Using Various Inline Fiber Filters

Shien-Kuei Liaw^1,4, Kuei-Chu Hsu², Nan-Kuang Chen³

¹Department of Electronics Engineering, National Taiwan University of Science and Technology.
²Department of Optics and Photonics, National Central University.
³Department of Electro-Optical Engineering, National United University.
⁴Department of Mechanical Engineering, National Taiwan University.

DOI: 10.4236/eng.2010.28075                

Abstract

Several high-performance and tunable erbium-doped fiber lasers are reviewed. They are constructed by using fiber Bragg gratings (FBGs) or short-wavelength-pass filters (SWPFs) as wavelength tunable components inside the laser cavity. Broadband wavelength tuning range including C- and/or S-band was achieved, and tunable laser output with high slope efficiency, high side-mode suppression ratio was obtained. These fiber lasers can find vast applications in lightwave transmission, optical test instrument, fiber-optic gyros, spectroscopy, material processing, biophotonic imaging, and fiber sensor technologies.

Keywords

Fiber Bragg Grating (FBG), Short-Wavelength-Pass Filter (SWPF), Tunable Fiber Laser, Optical

Conflicts of Interest

The authors declare no conflicts of interest.

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