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Proceedings Paper

Multi-wavelength fiber ring laser with switchable fiber Bragg gratings
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Paper Abstract

Various techniques have been suggested to build a fiber ring laser using a fiber Bragg gratings (FBG) as a lasing wavelength selection filter. For most of FBG filter, a circulator has been used as a key component to convert the reflection characteristic of FBG to the transmission spectrum, but it has been hard to tune the spectral reflectance or transmittance of FBG intrinsically. In this research, a multi-wavelength fiber ring laser is proposed based on a novel switchable bandpass filter to show tunable multiple lasing spectra with high extinction. The proposed switchable bandpass filter consists of multiple FBG's incorporating Sagnac loop interferometer configuration. Transmission spectra of bandpass filter can be greatly varied for more than 20 dB as changing the phase of polarization controller in the Sagnac loop. We experimentally demonstrate the lasing wavelength is easily selected by the switchable FBG's at multiple spectral positions.

Paper Details

Date Published: 23 February 2007
PDF: 9 pages
Proc. SPIE 6453, Fiber Lasers IV: Technology, Systems, and Applications, 645326 (23 February 2007); doi: 10.1117/12.704875
Show Author Affiliations
Eun Joo Jung, Pusan National Univ. (South Korea)
Chang-Seok Kim, Pusan National Univ. (South Korea)
Myung Yung Jeong, Pusan National Univ. (South Korea)
Young-Geun Han, Korea Institute of Science and Technology (South Korea)
San Bae Lee, Korea Institute of Science and Technology (South Korea)


Published in SPIE Proceedings Vol. 6453:
Fiber Lasers IV: Technology, Systems, and Applications
Donald J. Harter; Andreas Tünnermann; Jes Broeng; Clifford Headley, Editor(s)

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