Higher order filter response in coupled microring resonators

By J. Hryniewicz, P. Absil, Brent E. Little, R. A. Wilson, P. Ho. IEEE Photonics Technology Letters, 2000

311 citations recorded by the source corpus.

View Paper: https://www.semanticscholar.org/paper/7a588bf09a6c269186b3856a6881470df84f4486

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Citations in the corpus

• Review of Applications of Whispering-Gallery Mode Resonators in Photonics and Nonlinear Optics (2005, methodology): “Multi-pole, high-Q filters based on cascaded WGRs fabricated with silica have been demonstrated, allowing compact packages and robust performance at 10- to 100-GHz bandwidths and corresponding optical Q’s on the order of 10 to 10 [133,188–192], and they are in fact commercially available.”
• Fabrication technologies for vertically coupled microring resonator with multilevel crossing busline and ultracompact-ring radius (2005, background): “Due to the quadruple series-coupled configuration, a boxlike filter response [11], [12] is expected.”
• Propagation loss in single-mode GaAs-AlGaAs microring resonators: measurement and model (2001, methodology): “The waveguides were then etched deeply into the lower AlGaAs cladding using a chemically assisted ion beam etching (CAIBE) process [ 3 ].”
• Parallel-cascaded semiconductor microring resonators for high-order and wide-FSR filters (2002, methodology): “Serially coupled Si and GaAs‐AlGaAs racetrack filters have been reported by Lim et al. [5] and Hryniewicz et al. [ 2 ], respectively.”
• Optical resonators with whispering-gallery modes-part II: applications (2006, background): “The filters have 10–100 GHz bandwidths and corresponding optical Qs on the order of 10(5)–10(4) [15], [27]–[31], and are, in fact, commercially available.”
• Compact microring notch filters (2000, background): “Channel dropping filters using single [3]–[5] and multiple-coupled [6], [7] rings, with radii ranging from 4 to 25 m, have recently been demonstrated.”
• Box-like filter response and expansion of FSR by a vertically triple coupled microring resonator filter (2002, unknown): “The series-coupled microring resonator is one solution, and a triple-coupled microring based on the planar structure has been reported [10].”
• Transmission, group delay, and dispersion in single-ring optical resonators and add/drop filters-a tutorial overview (2004, background): “Composite ring resonator filters are synthesized from parallel-coupled [18], [46], [49]–[53] or series-coupled ring resonators [ 54 ]–[57].”
• Fabrication and analysis of add-drop filters based on microring resonators in SiN (2004, background): “Rings were chosen instead of racetrack resonators [2] as they have a higher uncoupled radiation Q for a given resonator path length, and do not suffer from scattering at bend-straight junctions.”