Generation of Single Frequency Light From an Optical Feedback Special Laser Module
Tran Thi Phuc
Vu Van Luc
Abstract
Generation of single frequency radiation from a semiconductor laser based on
a special laser module (amplifying laser module) is presented. The
multi-mode emission with the spectral bandwidth of 100A$^{o}$ is converted
to single mode one with a narrow bandwidth of 2A$^{o}$ in the presence of
external optical feedback. Wavelength tunability of the laser emission
over the range of 4-10 nm is also shown. The results could be used in high
speed optical communication, WDM and other applications.