Photonic crystal microring resonator for labelfree biosensing stanley m. Micro ring resonator based optical filters for wdm. Mar 28, 2014 a transparent broadband ultrasonic detector based on an optical micro ring resonator for photoacoustic microscopy skip to main content thank you for visiting. Optical microring resonator for label free biosensing application.
A study on refractive index sensors based on optical micro. This lower loss gives rise to a higher q in the ring since the q of the ring is directly proportional to the round trip loss. Pdf labelfree biosensing by means of optical microring. Pdf in this book, recent application of micro ring resonators reported. Theoretical analysis of a microring resonator array with. Effect of doping position on the active silicononinsulator. Photonic crystal microring resonator for label free biosensing. Broadband electrooptic frequency comb generation in a.
Optical characterization showed that the fabricated microring resonator had a free spectral range fsr of. Labelfree biosensing by means of optical microring resonator. Silicon microring modulator modeling yonsei university. As a narrowband antenna, possibly operating at a higher mode where the bandwidth is wider and somewhat more useful 3. Pdf labelfree biosensing by means of optical microring resonator. Pdf micro ring resonators and applications researchgate. Each ring taps a single wavelength from a bus waveguide. Osa design and fabrication of soi microring resonators. In this paper we provide 3d fullvector static electromagnetic simulation of silicon micro ring resonator operating. The figure of merit of this compact depletion modulator is estimated to be lp. Design and simulation of a low loss soi optical microring. In the above resonator gyro configuration, one optical coupling loop one additional waveguide coupled to the reso. Design and modeling of waveguidecoupled singlemode.
Labelfree biosensing by means of optical microring resonator article pdf available in proceedings of spie the international society for optical engineering 7356 may 2009 with 198 reads. Highqualityfactor microring resonator in amorphous. A transparent broadband ultrasonic detector based on an. This book fills the need for a cohesive and comprehensive treatment of the subject, given its importance and the proliferation of new research in the field. Us20100260453a1 quality factor qfactor for a waveguide.
These can be, but are not limited to being, waveguides. New microring resonator creates quantum entanglement on a. Microwave and rf applications for microresonator based. The microstrip ring resonator for characterising microwave. A record high conversion efficiency for this kind of device is achieved over a bandwidth of 20nm. The main performance characteristics of these resonators are the free spectral range fsr, the. Ceramic resonators introduction to ceramic resonators amplifier gain. Numerical study of integrated micro ring resonator and. Microring resonator theory a microring resonator is an optical component to con ne light bytotal internal re ectiontir, whichcan be createdby micro nano fabrication techniques. In this work perforated microring resonator based refractive index sensor is. Micro resonator cavitycoupling to a rectangular wg cavity 1the penetration depth h is tunable for impedance adjustment. Alloptical 10 gbs and logic gate in a silicon microring resonator.
The combination of swg waveguides with optical microresonators can offer the. In this work, we use four cascaded micro rings implemented in a silicon photonic device operating in the cband. Alloptical logic based on silicon microring resonators. Our microring resonators achieve an fsr greater than 5 nm for ring radius of 30. In the present paper the advantages of ring resonator based switch have been exploited to design an integrated alloptical circuit which can perform the logical operations left shift, right shift, circular left shift and. Pdf 3d simulation of silicon microring resonator with comsol.
More than a 2fold improvement in volumetric and surface sensing sensitivity is achieved compared to conventional microring sensors. Development of microring resonatorbased optical bandpass. Micro ring resonator figure 16 shows the simulated dropped signals from the terminal 2 of the constructed ring resonator for both te and tm polarizations. In this article we discuss on the principle and importance of level free biosensing. The term ring resonator is typically used to indicate any looped resonator, but in the. In this paper, we propose and analyze a coupled ring resonator based modulator, in which only one ring resonator is. Microring resonator made by ionexchange technique for detecting the co 2, h 2 o. Degtyarev and others published 3d simulation of silicon microring resonator with comsol find, read and cite all the research you need on researchgate. Pdf labelfree biosensing by means of optical microring resonator luca stefano academia. Monolithic ultrahighq lithium niobate microring resonator mian zhang,1, cheng wang,1, rebecca cheng,1,2 amirhassan shamsansari,1,3 and marko loncar1, 1john a. Department of electrical and electronic engineering. Characteristics such as large fsr, low loss and high coupling more than 3% are important for a micro ring resonator, regardless of the specific function it fulfills.
Comsol tutorial for dispersion engineering in micro ring resonators. An optical ring resonator usually consists of a straight waveguide coupled to a circular one, as shown in figure 1a, or two straight waveguides coupled through a circular one, as shown in figure 1b. The bus waveguides, which have the same cross section as the ring, are buried underneath a sio2 layer and they are used to couple light inside and. A micro ring or optical ring resonator is a device that essentially uses the same principles as those found in whispering galleries, except that. Design and modeling of waveguidecoupled singlemode microring resonators m. Silicon microring resonatorbased alloptical digitalto.
Monolithic ultrahighq lithium niobate microring resonator. Design of microring resonatorbased alloptical logic shifter. Silicon microring resonators photonics research group. We show that geometrical and scalar approaches are not sufficiently accurate for calculating resonator parameters. May 30, 2011 simulation with awcm full grid method. Micro ring resonators have been fabricated in hydrogenated amorphous silicon on silica structure. Optical microring resonator based corrosion sensing. Here we will using micro ring resonates as a setup of proposed system and we will generate required pulse using optical soliton and gaussian pulse as input pulse. Two basic configurations of an optical micro ring resonator. A reverse bias of 10v is applied to the junction and shows the possibility to achieve a high modulation depth.
Simulation of the optical ring coupler fimmprop, our optical propagation tool based on eigenmode expansion eme, can simulate the coupling regions of ring resonator filters very efficiently and with very good accuracy thanks to its taper algorithm, even for large ring diameters that cannot be solved. The ring resonator is consisting of waveguides where one waveguide is a closed loop, and it will couple the light input and output. Silicononinsulator microring resonator for sensitive and labelfree biosensing. In this work perforated microring resonator based refractive index sensor is presented. This paper presents silicon ring resonatorbased photonic transmitter prototypes that address the limited intrinsic bandwidth of carrierinjection. The remaining light in the bus waveguide is then fed into a photodiode, which is used to monitor the tuning of all rings. An optical ring resonator is a set of waveguides in which at least one is a closed loop coupled. The sensitivity measurement range is limited by the free spectral range fsr of the sensing mrr. The input end of the straight waveguide is fed by a focused gaussian beam. Photonic crystal microring resonator for label free biosensing stanley m.
The single layer implementation, although requiring simpler process, presents a design tradeoff between the resonator parameters fsr, coupling, lossrev. An optical ring resonator is a set of waveguides in which at least one is a closed loop coupled to some sort of light input and output. Optical ring resonator software cad simulations for soi. A pulse with ultrawide bandwidth that spans over several resonant modes of the ring and of the sensing object is used for simulation, enabling a singleshot simulation of the microring sensing.
The intrinsic quality factor is estimated as 56,000 and the notch depth is 30db. Modelling the silicon photonic device proposed is a twocomponent systemsee figures 1a and bin which a microring 7. Pdf design and fabrication of soi microring resonators based on. Vertical red line marks the frequency of the external driving equation 1 describes the propagation in time of the intracavity. The resonator modulator configuration is depicted in figure 2. Abstract layered 2d graphene oxide go films are integrated with micro.
As a resonator with several well defined resonant frequencies for the purposes of measuring microstrip properties 2. A computersimulated ring resonator depicting continuous wave input at resonance. In this paper, the design of a micro ring resonator electrooptical modulator using a pn junction embedded in a rib waveguide is reported. Paulson school of engineering and applied sciences, harvard university, cambridge, massachusetts 028, usa 2department of physics, brown university, providence, rhode island 02912, usa 3department of. The key issues affecting the resonator design such as free spectral range and quality factor were discussed. Abstract optical micro ring resonator orr made of silicon on insulator sol using cmos manufacturing process is a promising candidate for level free biosensing application. It is a four port microring resonator with radius 5. Label free biosensing by means of optical micro ring resonator.
Passive ring resonator micro optical gyroscopes 439 gyro should be considerably smaller than the width of the transmission minimum. The concept was and still is used to build interacting elements smaller than the applied electromagnetic radiation. On may 1, 2000 conducting wires were placed symmetrically within each cell of a periodic split ring resonator array which achieved negative propagation of electromagnetic waves in the microwave region. We demonstrate efficient, low power, continuouswave fourwave mixing in the cband, using a high index doped silica glass micro ring resonator having a qfactor of 1. Optical modulators with a highq microring are reported to yield outstandingly small power of modulation. Silicon photonic ring resonators are integrated optical filters with a transmission spectrum consisting of a comb of resonance peaks with a quasiperiodic wavelength spacing, or free spectral. The term ring resonator is typically used to indicate any looped resonator, but in the narrow sense it is a circular ring.
A continuous wave cw incoming optical wave is modulated by varying the refractive index of the microring resonator. The concepts behind optical ring resonators are the same as those. Mrr is the promising basic element of future optical integrated circuits due to its various applications. This study highlights the study of the free carrier injection effect on the active soi micro ring resonator. Tunable large free spectral range microring resonators in lithium. Numerical analysis of perforated microring resonator based. Introduction and basic theory of integrated ring resonator and micro lens 1. The experimental bulk detection sensitivity is 248nmriu and label free detection of dna and proteins is. In this book, recent application of micro ring resonators reported. Mathematical background the simplest configuration of a microring resonator consists of a unidirectional coupling between a waveguide and a ring resonator, as we can see in fig. Different from fabryperot resonators, ring resonators use couplers instead of mirrors for optical feedback. Microring resonator made by ionexchange technique for. Pdf microring resonators have been widely employed, in recent years, as wavelength filters, switches and frequency converters in optical.
It is a four port micro ring resonator with radius 5. Optical filter that utilizes silicon micro ring resonator mrr has been proposed as a solution in order to provide highbandwidth, low power consumption and small size. The dimensions of the ring wg and bus wg can vary based on symmetric or asymmetric coupling. Photonic crystal microring resonator for label free. Optical ring waveguide resonators are useful components for wavelength. Simulation and analysis of singlemode microring resonators in. All the study are based on numerical simulation method. Fauchet1, 1department of electrical engineering and computer science, vanderbilt university, nashville, tn. The field of microring resonator research has seen tremendous growth over the past decade, with microring resonators now becoming a ubiquitous element in integrated photonics technology.
Carlos errandoherranz, frank niklaus, gran stemme, and kristinn b. An energyefficient silicon microring resonatorbased. We demonstrate a junction between a silicon strip waveguide and an ultracompact silicon microring resonator that minimizes spurious light scattering and increases the critical dimensions of the geometry. Micro ring resonators have been widely employed, in recent years, as wavelength filters, switches and frequency converters in optical communication circuits, but can also be successfully used as transducing elements in optical sensing and biosensing. Quite strong dependence of ring resonator radius on waveguide width is revealed. This paper presents silicon ring resonator based photonic transmitter prototypes that address the limited intrinsic bandwidth of carrierinjection. We show cascaded silicon microring resonators with radii around 1.
Jan 28, 2015 a micro ring or optical ring resonator is a device that essentially uses the same principles as those found in whispering galleries, except that instead of sound, they use light. Allpass ring resonators in its simplest form a ring resonator can be constructed by feeding one output of a directional coupler back into its input, the socalled allpass. The concepts behind optical ring resonators are the same as those behind whispering galleries except that they use light and obey the properties behind constructive interference and total internal. Numerical study of integrated micro ring resonator and micro. When the shape is elongated with a straight section along one direction typically along the coupling section the term racetrack resonator is also used. Osa photonic crystal microring resonator for labelfree. Simulated response of a mr for the through black and drop port grey. A simple semiconductor laser diode and a monochromator were used for the characterization of the device.
Pdf standard silicon photonic strip waveguides offer a high intrinsic refractive index. The device is fabricated with a widelyavailable sembased lithography system using a stitchfree. An alloptical logic shifter circuit with the help of gaasalgaas based microring resonator is proposed and described. Figure 1 shows a ring resonator that was the basis of the integrated optical parametric oscillator. Quality factor qfactor for a waveguide microring resonator download pdf. The ring has a qfactor of 65000, a free spectral range of 575ghz, a radius of 48m and a crosssection of 1. Figure 1 is a scheme of the ring resonator used in our experiment. Nonlinear effects in soi microring resonators 197 ei1 et1 t ei2 et2 k k t.
A label free optical biosensor based on a onedimensional photonic crystal microring resonator with enhanced lightmatter interaction is demonstrated. Fast analytical modelling of an soi microring resonator for. Low power four wave mixing in an integrated, microring. When a strong optical control pulse and a weak cw probe light are coupled into the ring resonator through two different resonances, the control pulse generates free carriers in the ring resonator due to the twophoton absorption tpa effect. Automated tuning and channel selection for cascaded micro. The microstrip ring resonator has found three main uses. Fauchet1, 1department of electrical engineering and computer science, vanderbilt university, nashville, tn 37235, usa 2department of physics and astronomy, vanderbilt university, nashville, tn 37235, usa. Design of a microring resonator electrooptical modulator. In this paper we provide 3d fullvector static electromagnetic simulation of silicon microring resonator operating.
Numerical analysis of perforated microring resonator based refractive index sensor m. Optical trapping and manipulating with a silica microring resonator. Optical microring resonators have extensive applications in wavelength filters, label free biosensors 2,3,4,5, pressure sensors 6,7,8, and acceleration sensors 9,10 due to their outstanding properties of micro size, the complementary metaloxidesemiconductor cmos compatibility and immunity to electromagnetic fields 11,12. This content is presented at fem workshop organized by epfl in omt etn workshop series. Label free, singleobject sensing with a microring resonator is investigated numerically using the finite difference timedomain fdtd method. Device performances are predicted using numerical modeling software 2d.
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