High-sensitivity and wide-range optical sensor based on three cascaded ring resonators.

We demonstrate a three cascaded micro-ring resonators based refractive index optical sensor with a high sensitivity of 5866 nm/RIU, the measurement range of which is significantly improved 24.7 times comparing with the traditional two cascaded micro-ring resonators.

[1]  Jian-Jun He,et al.  Analysis of Wavelength and Intensity Interrogation Methods in Cascaded Double-Ring Sensors , 2012, Journal of Lightwave Technology.

[2]  Nicolas A. F. Jaeger,et al.  Grating-assisted silicon-on-insulator racetrack resonator reflector. , 2015, Optics express.

[3]  Lorenzo Pavesi,et al.  Asymmetric Mach–Zehnder Interferometer Based Biosensors for Aflatoxin M1 Detection , 2016, Biosensors.

[4]  D. Dai,et al.  Highly sensitive Si nanowire-based optical sensor using a Mach-Zehnder interferometer coupled microring. , 2010, Optics letters.

[5]  Jian-Jun He,et al.  Highly-sensitive silicon-on-insulator sensor based on two cascaded micro-ring resonators with vernier effect , 2011 .

[6]  L. Chrostowski,et al.  FSR-Eliminated Vernier Racetrack Resonators Using Grating-Assisted Couplers , 2013, IEEE Photonics Journal.

[7]  Jian-Jun He,et al.  Optical waveguide double-ring sensor using intensity interrogation with a low-cost broadband source. , 2011, Optics letters.

[8]  Jian-Jun He,et al.  Cascaded silicon-on-insulator double-ring sensors operating in high-sensitivity transverse-magnetic mode. , 2013, Optics letters.

[9]  Jian-Jun He,et al.  Microfluidics-integrated cascaded double-microring resonators for label-free biosensing , 2014, Photonics Asia.

[10]  Zeeshan Ahmed,et al.  On-chip silicon waveguide Bragg grating photonic temperature sensor. , 2015, Optics letters.

[11]  Jian-Jun He,et al.  High-sensitivity optical biosensor based on cascaded Mach-Zehnder interferometer and ring resonator using Vernier effect. , 2014, Optics letters.

[12]  R. Baets,et al.  Grating Couplers for Coupling between Optical Fibers and Nanophotonic Waveguides , 2006 .

[13]  Linjie Zhou,et al.  Tunable spiral Bragg gratings in 60-nm-thick silicon-on-insulator strip waveguides. , 2016, Optics express.

[14]  Miao Yu,et al.  Cascaded ring resonator-based temperature sensor with simultaneously enhanced sensitivity and range. , 2016, Optics express.

[15]  J. Scheuer,et al.  Matrix analysis of microring coupled-resonator optical waveguides. , 2004, Optics express.

[16]  Ang Li,et al.  Design of a single all-silicon ring resonator with a 150 nm free spectral range and a 100 nm tuning range around 1550 nm , 2016 .