@article { Shi2010, title = {Design and Characterization of Microring Reflectors with a Waveguide Crossing}, journal = {Optics Letters}, volume = {35}, year = {2010}, month = {09/2010}, pages = {2901-2903}, abstract = {We present a novel design of a wavelength-selective reflector using a microring resonator integrated with a low-loss, low-crosstalk waveguide crossing. Functioning as a reflective notch filter, it can be used for optical communications and for sensor applications. The device is simulated using the transfer-matrix method combined with a 2D finite-difference mode solver and is fabricated by a CMOS-compatible silicon-on-insulator technology. The measurement shows an extinction ratio greater than 25 dB and a resonance-wavelength temperature dependence of 0.09 nm/K.}, URL = {http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-35-17-2901}, author = {Wei Shi and Raha Vafaei and Miguel Guillen and Nicolas A. F. Jaeger and Lukas Chrostowski} }