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Electro-optic wavelength-tunable fiber ring laser based on cascaded composite Sagnac loop filters
Chang-Seok Kim1, Fatima N Farokhrooz, Jin U Kang
1Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA.
Optics Letters
|August 18, 2004
Abstract:
A continuous wavelength-swept fiber ring laser with a lithium niobate waveguide electro-optic polarization controller in an intracavity fiber Sagnac loop is experimentally demonstrated. Composite fiber Sagnac loop filters are cascaded to demonstrate discrete wavelength switching of a single-wavelength fiber ring laser. Stable single-longitudinal-mode operation is achieved by use of a Sagnac loop saturable-absorber filter.