Optics and Photonics Society of Iran

In this study, a modern optical delay line based on the corrugated photonic crystals was introduced and characterized at Near-infrared region. Two types of photonic crystals with triangular and sinusoidal unit cells were investigated and compared. It is shown that a corrugated photonic crystal with sinusoidal cells can effectively slow down the optical pulses with central wavelength of 800 nm at the near-infrared region. Also, it is found that the average transmission of the sinusoidal structure at desired spectral region is larger than the triangular one. The finite-difference time-domain method was used to perform the numerical calculations.