Apodized distributed feedback fiber laser with asymmetrical outputs for multiplexed sensing applications.

The spectral characteristics of four different types of apodized fiber Bragg gratings with a single π phase shift are analyzed based on the simulation. The 2-discrete Gaussian apodization is proved to have the most effective suppression to grating side mode. A novel asymmetrical distributed feedback fiber laser based on this apodization structure is… CONTINUE READING