Automatic Resonance Alignment of High-Order Microring Filters
Optics
2016-11-17 v1
Abstract
Automatic resonance alignment tuning is performed in high-order series coupled microring filters using a feedback system. By inputting only a reference wavelength, a filter is tuned such that passband ripples are dramatically reduced compared to the initial detuned state and the passband becomes centered at the reference. The method is tested on 5th order microring filters fabricated in a standard silicon photonics foundry process. Repeatable tuning is demonstrated for filters on multiple dies from the wafer and for arbitrary reference wavelengths within the free spectral range of the microrings.
Cite
@article{arxiv.1507.02129,
title = {Automatic Resonance Alignment of High-Order Microring Filters},
author = {Jason C. C. Mak and Wesley D. Sacher and Tianyuan Xue and Jared C. Mikkelsen and Zheng Yong and Joyce K. S. Poon},
journal= {arXiv preprint arXiv:1507.02129},
year = {2016}
}
Comments
12 pages, 13 figures, Submitted to IEEE Journal of Quantum Electronics