An eight-channel add-drop filter using vertically coupled microring resonators over a cross grid
- 1 June 1999
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 11 (6) , 691-693
- https://doi.org/10.1109/68.766787
Abstract
An eight-channel add-drop cross-grid vertically coupled microring resonator (VCMRR) filter is proposed and demonstrated. The cross grid comprises a grid-like array of buried channel waveguides which perpendicularly cross through each other, VCMRRs at each of the cross-grid nodes serve as the wavelength selective add-drop filters. Measured crosstalk levels at the crossings are typically less than -30 dB. Rings with a nominal radius of 10 /spl mu/m are used to achieve a free-spectral range of 20 nm and optical bandwidths of 1 nm, while changes of the radii in increments of 50 nm lead to a nominal channel spacing of 5.7 nm.Keywords
This publication has 8 references indexed in Scilit:
- Wavelength trimming of a microring resonator filter by means of a UV sensitive polymer overlayIEEE Photonics Technology Letters, 1999
- Vertically coupled glass microring resonator channel dropping filtersIEEE Photonics Technology Letters, 1999
- Microresonators for Integrated Optical DevicesOptics and Photonics News, 1998
- Efficient architectures for exactly realizing optical filters with optimum bandpass designsIEEE Photonics Technology Letters, 1998
- Ultra-compact Si-SiO2 microring resonator optical channel dropping filtersIEEE Photonics Technology Letters, 1998
- Waveguide-coupled AlGaAs/GaAs microcavity ring and disk resonators with high finesse and 216-nm free spectral rangeOptics Letters, 1997
- Microring resonator channel dropping filtersJournal of Lightwave Technology, 1997
- Integrated-optic ring resonators with two stacked layers of silica waveguide on SiIEEE Photonics Technology Letters, 1992