Generation of Single Frequency Light From an Optical Feedback Special Laser Module

Tran Thi Phuc, Vu Van Luc


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.

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