components, guided waves, integrated optics, integrated optics devices, photonic integrated circuits


We propose a new method of realizing ring resonators based on hybrid photonic crystal and conventional waveguide structures. The proposed ring resonator configuration is advantageous compared with general ring resonator structures for its controllability of the quality (Q) factor, free spectral range (FSR), and full width at half maximum (FWHM) over a wide range. We show ring resonator structures based on a single mode waveguide with core and clad refractive indices of 1.5 and 1.465, respectively. A 35μm x 50μm ring resonator has a free spectral range (FSR) of 14.1nm and a quality (Q) factor of 595 with high optical efficiency (92.7%). By decreasing the size of the ring resonator to 35μm x 35μm, the FSR is increased to 19.8nm. Modifying the splitting ratio of the beam splitters permits the Q factor to be increased to 1600.

Original Publication Citation

S. Kim, J. Cai, J. Jiang, and G. P. Nordin, "New ring resonator configuration using hybrid photonic crystal and conventional waveguide structures," Opt. Express 12(11), pp. 2356-2364 (24).

Document Type

Peer-Reviewed Article

Publication Date


Permanent URL


Optical Society of America




Ira A. Fulton College of Engineering and Technology


Electrical and Computer Engineering