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Wavelength-Switchable Fiber Ring Laser Employing a Long-Period Fiber Grating Inscribed on a High Birefringent Fiber  

Lee, Yong-Wook (한국전자통신연구원)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.56, no.11, 2007 , pp. 1995-1997 More about this Journal
Abstract
In this paper we propose a wavelength-switchable fiber ring laser that employs a polarization-dependent fiber band stop filter. The fiber filter was fabricated by inscribing a long-period fiber grating on a high birefringent fiber. Dual-wavelength switching operation was accomplished by controlling the rotatable linear polarizer which rotated the polarization plane of the light circulating through the fiber laser cavity. The amplitude variation of both laser lines was measured to be less than 0.5 dB and the signal-to-amplified spontaneous emission ratio was more than 55 dB.
Keywords
Fiber Ring Laser; Wavelength Switching; Long-Period Fiber Grating; High Birefringent Fiber; Polarization;
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