Realizing mode conversion and optical diode effect by coupling photonic crystal waveguides with cavity

Ye Han†,‡^a), Zhang Jin-Qian-Nan^a)‡, Yu Zhong-Yuan^a), Wang Dong-Lin^b), Chen Zhi-Hui^c)

(a) Schematic diagram of Y-branch wavelength filter with optical diode effect. (b) Simulated electric field profile of even modes at frequencies 0.3970 c / a and 0.3930 c / a incident from port 2 and port 3, respectively. (c) and (d) Simulated electric field profiles of even mode at frequencies 0.3970 c / a and 0.3930 c / a incident from port 1.