Overview of Multi-Wavelength Laser Generation Techniques

Abstract

Multi-wavelength laser generation from a single source of laser has attracted considerable attention among researchers over the last few decades. These multi-wavelength lasers are mostly proposed for Dense Wavelength Division Multiplexing (DWDM) application, but is also used for sensing and device testing purposes. In this paper, we review techniques proposed in multi-wavelength generation. Advantages and disadvantages of each technique are also discussed.