SPECTRAL SHAPING OF ACOUSTO-OPTIC TUNABLE FILTER: A METHOD TO TUNE THE BANDWIDTH, WAVELENGTH, AND ATTENUATION

摘要

In this article, we presented a method, which will allow multiple parameter control of the 3-dB bandwidth, centre-notch wavelength, and attenuation level in a fiber-based acousto-optic tunable filter. The method basically involves the variation of the interaction length, RF frequency, and RF power on a single fiber device, to achieve multiple parameter tuning of the optical filter.