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Opt Express. 2006 Aug 7;14(16):7319-28.

Acoustooptic characterization of a birefringent two-mode photonic crystal fiber.

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  • 1Department of Electronics and Telecommunications, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway.


The effect of axial variations in acoustooptic phase-mismatch coefficient of a two-mode birefringent photonic crystal fiber (PCF) is studied experimentally using two different methods. The first method is to determine axial non-uniformities directly from the transmission spectrum, while the second method is to use acoustic pulses. Both methods are seen to be in good agreement. It is found that axial non-uniformities increase the coupling bandwidth significantly as compared to an axially uniform fiber. The effect of acoustic birefringence is also considered.

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