Effect of acoustic flexural waves in a tilted superstructure fiber grating

Ming-Yue Fu; Wen-Fung Liu; Tzu-Chiang Chen

doi:10.1117/1.1839225

1 February 2005 Effect of acoustic flexural waves in a tilted superstructure fiber grating

Ming-Yue Fu, Wen-Fung Liu, Tzu-Chiang Chen

Author Affiliations +

Optical Engineering, Vol. 44, Issue 2, 024401 (February 2005). https://doi.org/10.1117/1.1839225

Abstract

This study demonstrates that the cladding modes of a tilted superstructure fiber grating can be coupled back to the core mode to create induced channels by acousto-optic interactions when the acoustic wave traveling along the fiber axis vibrates the fiber. This phenomenon is based on the acoustic wave vector matching the difference between the core mode and the cladding mode wave vector. Acoustic power levels can be used to control the reflectivity and number of the induced wavelength channels. Moreover, the wavelength location of the induced channel can be tuned by varying the acoustic wave frequency. Thus, the proposed device may provide a switchable multiwavelength comb filter for applications in wavelength-division multiplexing systems, fiber lasers, or fiber sensors.

©(2005) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Ming-Yue Fu, Wen-Fung Liu, and Tzu-Chiang Chen "Effect of acoustic flexural waves in a tilted superstructure fiber grating," Optical Engineering 44(2), 024401 (1 February 2005). https://doi.org/10.1117/1.1839225

Published: 1 February 2005

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