Effect of injection current on some static charachtristics of quarterly wavelength-shifted distributed feedback laser diodes

Abstract EN

Quarterly wavelength shifted (QWS) distributed feedback (DFB) laser structures are commonly referred to be associated with high mode selectivity, zero-frequency detuning and small threshold density.

The present work shows the effect of the injection current on some static characteristics (photon density, carrier density, refractive index, gain margin and optical power) of QWS DFB laser diodes.