Erbium doped fiber optical amplifier with adaptive filter

Abstract

According to an aspect of an embodiment, an optical signal and an optical pump signal may be obtained and multiplexed onto an erbium-doped optical fiber. The optical fiber may be configured to perform amplification of optical waveforms within a first wavelength range. Signal within the first wavelength range of the optical signal may be amplified using the optical fiber. In some embodiments, a bending radius of a bend in a fiber-based filter may be adjusted such that the filter is configured to attenuate signals in a second wavelength range in which the filter is configured to attenuate optical waveforms with respect to varying wavelength ranges depending on the bending radius of the bend in the filter. The second wavelength range may include wavelengths longer than the first wavelength range. The signals in the second wavelength range may be attenuated using the filter bent at the bending radius.