Journal ArticleDOI
Resonant frequency shift characteristic of integrated optical ring resonators with tunable couplers
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TLDR
In this article, the resonant frequency shift characteristic of tunable resonators is theoretically analyzed, and it is shown that the frequency shift range is dependent on the configurations and tuning methods of couplers.Abstract:
Ring resonators integrated with tunable couplers are useful devices in integrated optics systems. The resonant frequency shift characteristic of tunable resonators is theoretically analyzed. It is shown that the resonant frequency shift range is dependent on the configurations and tuning methods of couplers. It provides an analytical explanation of the frequency shift effect by the phase transmission method and the coupled-mode theory (CMT) of asymmetric waveguides. Optimized designs of different kinds of tunable couplers are discussed in order to improve the resonant frequency stability. Moreover, the intensity–phase relationship induced by the resonant frequency shift effect is also discussed, and a more efficient configuration of optical sensors using phase modulation is proposed.read more
Citations
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Journal ArticleDOI
High sensitivity optical waveguide accelerometer based on Fano resonance
TL;DR: An optical waveguide accelerometer based on tunable asymmetrical Fano resonance in a ring-resonator-coupled Mach-Zehnder interferometer (MZI) with 393-fold increase in sensitivity is achieved compared with a conventional MZI accelerometer.
Journal ArticleDOI
Tunable Optical Ring Resonator Integrated With Asymmetric Mach–Zehnder Interferometer
TL;DR: In this paper, a tunable optical ring resonator incorporating an asymmetric Mach-Zehnder interferometer (MZI) and two phase shifters was demonstrated. And the authors showed that sharp intensity response and tunable narrow-bandwidth spectra can be achieved especially for resonators with a highly asymmetrical configuration.
Journal ArticleDOI
Compact wavelength- and bandwidth-tunable microring modulator.
Hossam Shoman,Hasitha Jayatilleka,Anthony H. K. Park,Ajay Mistry,Nicolas A. F. Jaeger,Sudip Shekhar,Lukas Chrostowski +6 more
TL;DR: An MRM is reported and demonstrated that uses a tunable two-point coupling scheme, which maintains the MRM's compact footprint and allows one to tune theMRM's operating wavelength and adjust the optical bandwidth, which means that one can compensate for fabrication errors and thereby improve the yields.
Journal ArticleDOI
Bandwidth-tunable, FSR-free, microring-based, SOI filter with integrated contra-directional couplers.
TL;DR: A silicon-on-insulator, bandwidth (BW)-tunable, free-spectral-range (FSR)-free, microring resonator (MRR)-based filter is experimentally demonstrated that achieves an FSR-free response at its through and drop ports and achieves a non-adjacent channel isolation for 400 GHz WDM.
Journal ArticleDOI
Tunable microring resonator based on dielectric-loaded surface plasmon polariton waveguides.
TL;DR: A ultrasmall thermal tunable ring resonator based on plasmon-polariton waveguide shows high efficient tunability and may be utilized to develop novel tunable plasMonic devices.
References
More filters
Journal ArticleDOI
Microring resonator channel dropping filters
TL;DR: In this article, a method of coupling of modes in time was proposed to simplify both the analysis and filter synthesis aspects of these devices, and the response of filters comprised of an arbitrarily large dumber of resonators may be written down by inspection, as a continued fraction.
Journal ArticleDOI
Whispering-gallery-mode biosensing: label-free detection down to single molecules
Frank Vollmer,Stephen Arnold +1 more
TL;DR: The enhancement mechanisms responsible for the extreme sensitivity of the WGM biosensor are described, its current implementations and applications are reviewed, and its future possibilities are discussed.
Journal ArticleDOI
Coupled-mode theory for optical waveguides: an overview
TL;DR: In this paper, a review of the recent development of coupled-mode theory for optical waveguides is given, with emphasis on the analysis of coupled optical waveguide, and three typical coupler configurations (uniform, grating-assisted, and tapered) are examined in detail.
Journal ArticleDOI
Critical coupling and its control in optical waveguide-ring resonator systems
TL;DR: In this paper, the coupling of optical waveguides to ring resonators holds the promise of a new generation of switches (modulators) which employ orders of magnitude smaller switching (modulation) voltages (or control intensities).
Journal ArticleDOI
Transmission, group delay, and dispersion in single-ring optical resonators and add/drop filters-a tutorial overview
TL;DR: In this article, the transmission, group delay time and quadratic dispersion properties of the four basic building blocs of optical filters built using ring resonators are described, and explicit expressions to compute the complex amplitude of the circulating wave in the ring, the Q factor, the finesse and the insertion loss are also given.