Cost-effective wavelength selectable light source using DFB fibre laser array

摘要

A cost-effective wavelength selectable light source comprising a distributed feedback (DFB) fibre laser array is proposed. A large number of wavelengths can be selected via optical space switches using only one shared pump laser. The structure is a good candidate for use as a wavelength selectable backup transmitter for wavelength division multiplexed (WDM) systems.