An all-fiber tunable bandpass filter is demonstrated. A dual acousto-optic grating inside a Sagnac loop changes the polarization of the light over a narrow bandwidth which redirects the light from reflection to the transmission port.
© 2005 Optical Society of America
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.2770) Diffraction and gratings : Gratings
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.2440) Instrumentation, measurement, and metrology : Filters
P. Z. Dashti, C. Kim, Q. Li, and H. P. Lee, " Demonstration of a Novel All-Fiber Bandpass Acousto-Optic Tunable Filter," in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, Technical Digest (CD) (Optical Society of America, 2005), paper OFC2.
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