OAM-RC

Abstract

The optical filter which has the box-like filtering spectrum response is one of the most important key optical switching components in the dense wavelength division multiplexing (DWDM) system and the intelligent optical network. The integrated high-order silicon microring resonators (MRRs) are one of the best candidates to achieve the box-like filtering optical spectrum response. In general, all the waveguide-resonator couplers are optimized in those MRRs based schemes, resulting in a high process requirement in fabrication. In this paper, a box-like filtering spectrum response based on the cascading high-order MRRs with uniform couplers is presented and demonstrated, which cascading 6 and 15 coupled race-track MRRs in series. Using the 15 coupled race-track MRRs with 10 μm radius, the 3 dB flat-top pass band of 2 nm, the out-of-band rejection ratio of 30 dB and the rising and falling edges of 49 dB/nm are realized successfully, which achieve the box-like filtering spectrum response..

Keywords

Microring resonator (MRR), Box-like filtering, Spectrum response, Silicon-on-insulator (SOI).

Citation

K. YU, L. J. WANG, J. Q. BAO, Box like filtering spectrum response analysis on the cascading race track silicon microring resonators, Optoelectronics and Advanced Materials - Rapid Communications, 13, 11-12, November-December 2019, pp.572-575 (2019).

Submitted at: Aug. 3, 2018

Accepted at: Dec. 10, 2019