447-455The
modal gain characteristics along with optical losses theoretically within TE
and TM polarization modes for GRIN-In0.90Ga0.10As0.59P0.41/InP
lasing nano-heterostructure by taking into account the number of quantum wells
as active layers inserted between barriers, have been investigated in the
present paper. In addition, the behaviour of saturated modal gain, transparency
current density and maximum optical loss for the single and multiple quantum
wells based nano-heterostructures, has also been studied. Moreover, temperature
and GRIN dependence of modal gain characteristics with in TE and TM mode have
been studied. Under simulation, the anti-guiding factors (a substantial
parameter for optical gain) along with modal gain as a function of photonic
energy and lasing wavelength at different temperatures have also been
investigated. The maximum gain is achieved in the NIR (near infrared) regions
at the wavelengths ~1.40 µm and ~1.25 µm in TE and TM polarization modes, respectively
in the present paper. Hence, the nano-structure studied in this work is very
useful as a light source for the optical fiber based communication system
functioning in the NIR region due to less attenuation. </span