Progress in Distributed Reflector Lasers

Abstract

To overcome the effect of chromatic dispersion of single-mode fiber for high capacity optical fiber transmission at the lowest loss wavelength region of 1.55μm [1], semiconductor lasers with distributed reflectors operating in a fixed single-mode under rapid modulation have been developed [2]. Such DSM laser consists of tightly mode-controlled resonator, and is called as a dynamic-single-mode (DSM) laser or a single longitudinal mode laser[3].