Blueshift of Optical Signal in PhC Based Butterworth Filter Due to Joule Heat Dissipation

Filters in all-optical circuit have the potential advantage over that of optoelectronic circuits because of very high SNR, thanks to the reduced scattering between photons instead of electron-electron collisions. This property makes the PhC based filters as the blue-eyed candidate for optical signal processing in photonic circuits. Semiconductor heterostructures are in general the constituent element of photonic crystal (PhC) based devices, whose performance is characterized by passband width at the desired frequency of communication spectrum, along with magnitude of ripple in that region of interest. The present paper shows that effect of device temperature has a great deal of influence on the performance parameters of the filter, under different polarized conditions and different magnitudes of structural parameters within physically realizable limit. But modulation of bandwidth is negligibly small as observed from simulated results within the choice of temperature range. Results are critically constructive for inclusion of this filter in optical integrated circuit.