Abstract
In this paper, an optical waveguide junction is introduced to reduce crosstalk based on a hexagonal structure of photonic crystals for TE modes. The wavelength is 1330 nm which is an important wavelength for optical fiber data transmission. Simulation results show that the proposed design exhibits a reduction of -50 dB in crosstalk. It translates to a considerable isolation improvement between two crossover waveguides. FDTD method is used to obtain the transmission coefficient.
Highlights
An optical waveguide junction is introduced to reduce crosstalk based on a hexagonal structure of photonic crystals for transverse electrical (TE) modes
Photonic crystals (PhC) are periodic optical structures that are designed to affect the light trajectory in dielectric or semiconductor waveguides[1].They have been developed as building blocks for integrated photonic systems
Rod-type PhC has Photonic band gap (PBG) for transverse magnetic (TM) modes and air-hole type has PBG for transverse electrical (TE) modes [6].Since the implementation of hole-type PhCs is easier, usually most structures realized in the literature have used it instead of the rod type alternative
Summary
Photonic crystals (PhC) are periodic optical structures that are designed to affect the light trajectory in dielectric or semiconductor waveguides[1].They have been developed as building blocks for integrated photonic systems. An optical waveguide junction is introduced to reduce crosstalk based on a hexagonal structure of photonic crystals for TE modes.
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