A microring resonator with an integrated Bragg grating: a compact replacement for a sampled grating distributed Bragg reflector

Kang, Young Mo; Arbabi, Amir; Goddard, Lynford L.

doi:10.1007/s11082-010-9380-4

Cited by 28 publications

(14 citation statements)

References 11 publications

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“…We may see a significant change in the value of κ i when we assume a Bragg grating or any deformity in between the inner rings [as shown in Fig. 8(c)] that enhances the coupling coefficient [2], [4], [36], [37] which might be due to reflections. For such situations prescribed in Fig.…”

Section: Mrr With Multiple Off-axis Inner Ringsmentioning

confidence: 99%

Theory and Design of Off-Axis Microring Resonators for High-Density On-Chip Photonic Applications

Haldar

Das

Varshney

2013

J. Lightwave Technol.

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In this paper, we have developed a theory of an off-axis microring resonator (MRR) with single and multiple off-axis rings. The off-axis inner ring introduces tunable extra notches with many striking features in the transmission spectrum which facilitates its use as efficient modulators and sensors. A few such notches when closely packed have been used to design a compact band rejection filter with improved bandwidth (>10 nm). Moreover, these closely packed extra notches achieved by serially coupled MRRs with offaxis inner rings are tunable to reject arbitrarily chosen WDM channels. Through numerical simulations, based on both transfer matrix method and finite difference time domain method, it has been examined that off-axis MRRs cater superior performances in comparison to the serially coupled conventional MRR with respect to the device size, faster response, and low dispersion. The proposed off-axis MRRs may be used for cluster to cluster interconnects and can have other potential on-chip photonic applications in network layer. Necessary design parameters are computed from the coupled mode theory.Index Terms-Add-drop filters, band rejection filters, high density photonic circuits, off-axis microring resonator, WDM.

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Section: Mrr With Multiple Off-axis Inner Ringsmentioning

confidence: 99%

Theory and Design of Off-Axis Microring Resonators for High-Density On-Chip Photonic Applications

Haldar

Das

Varshney

2013

J. Lightwave Technol.

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“…Some potential applications have been identified for the 1D photonic crystal (i.e., Bragg grating) assisted ring resonator, called in this paper the Bragg grating ring resonator (BGRR), such as for add-drop filters and angular velocity sensors [17][18][19][20], but any specific study under rotation conditions has been not yet reported. The possibility of replacing typical Bragg gratings with BGRR is reported in [21], while the guidelines for a band edge slow light magnification together with a Q-factor enhancement are given in [22]. In the frame of strain sensors, the fiber BGRRs (i.e., FBGRRs) have been proposed and experimentally investigated as splitting mode resonant sensors, due to their enhanced performance [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Fiber Bragg grating ring resonators under rotation for angular velocity sensing

2015

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In this paper we investigate the possibility of using hybrid resonators based on fiber Bragg grating ring resonators (FBGRRs) and π-shifted FBGRRs (i.e., defective FBGRRs) as rotation sensitive elements for gyroscope applications. In particular, we model the conventional fiber Bragg grating (FBG) with the coupled mode theory by taking into account how the Sagnac effect, induced by the rotation, modifies the eigenvalues, the photonic band gap, and the spectral response of the FBG. Then, on the basis of the FBG model under rotation conditions, the spectral responses of the FBGRR and π-FBGRR have been evaluated, confirming that the Sagnac effect manifests itself with a spectral shift of the eigensolutions. This physical investigation can be exploited for opening new ways in the optical gyroscope platforms.

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“…When the degeneracy is lifted due to perturbation that breaks the perfect symmetry, the two propagating waves are coupled to each other, and standing waves are formed. In one application, this so-called mode splitting can be engineered to realize a compact narrow band inline reflector [1][2][3]; in a different application, the spectral separation of the split modes is measured and used to detect the size of a nanoparticle interacting with the surface of the resonator [4,5].…”

Section: Introductionmentioning

confidence: 99%