Synthesis of optical filters using microring resonators with ultra-large FSR

Vargas, Salvador; Vázquez, Carmen

doi:10.1364/oe.18.025936

Cited by 6 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Both are second order transfer functions, non-periodic in frequency, due to the BG transfer function. This configuration permits lower crosstalk than a single RR placed in series with a BG [14].…”

Section: Wdm Switchesmentioning

confidence: 99%

“…The demultiplexer is composed by individual WDM switches tuned to proper wavelengths. Avoiding the restriction imposed by the periodic function of the RR with a non periodic transfer function inside the ring [14], the BG. The number of channels to be demultiplexed can be increased beyond the limit of a single RR FSR, by cascading more WDM switches.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optical reconfigurable demultiplexer based on Bragg grating assisted ring resonators

Vargas¹,

Vázquez²

2014

Opt. Express

Self Cite

View full text Add to dashboard Cite

A polarization independent reconfigurable optical demultiplexer with low crosstalk between adjacent channels and high number of potential allocated channels is designed on silicon on insulator technology. On to off state transitions can be implemented by changing the coupling factor or the ring length. Wavelength selective switch units are cascaded to form the demultiplexer. Crosstalks below −30dB with 50GHz channel spacing and losses below 1.5dB in the off state are obtained from simulations. Designs using carrier dispersion effect and power consumption estimations are included. 123-129 (1987). 11. Q. Xu, B. Schmidt, S. Pradhan, and M. Lipson, "Micrometre-scale silicon electro-optic modulator," Nature 435(7040), 325-327 (2005). 12. C. Li, L. Zhou, and A. W. Poon, "Silicon microring carrier-injection-based modulators/switches with tunable extinction ratios and OR-logic switching by using waveguide cross-coupling," Opt. Express 15(8), 5069-5076 (2007). 13. P. Dong, W. Qian, H. Liang, R. Shafiiha, X. Wang, D. Feng, G. Li, J. E. Cunningham, A. V. Krishnamoorthy, and M. Asghari, "1x4 reconfigurable demultiplexing filter based on free-standing silicon racetrack resonators,"

show abstract

Section: Wdm Switchesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optical reconfigurable demultiplexer based on Bragg grating assisted ring resonators

Vargas¹,

Vázquez²

2014

Opt. Express

Self Cite

View full text Add to dashboard Cite

show abstract

“…Special attention is given to evaluate the power consumption of those configurations from manufactured device data reported in the literature [8]. The proposed devices are based on microrings with embedded multireflection configurations [10][11][12] and thermal tuning. Special attention is given to second-order filters based on clockwise and counter-clockwise propagation so any manufacturing tolerance will affect in the same way both propagations.…”

Section: Introductionmentioning

confidence: 99%

Low power consumption silicon photonics tuning filters based on compound microring resonators

2013

View full text Add to dashboard Cite

Scalable integrated optics platforms based on silicon-on-insulator allow to develop optics and electronics functions on the same chip. Developments in this area are fostered by its potential as an I/O technology that can meet the throughputs demand of future many-core processors. Most of the optical interconnect designs rely on small footprint and high power efficiency microring resonators. They are used to filter out individual channels from a shared bus guide. Second-order microring filters enable denser channel packing by having sharper pass-band to stop-band slopes. Taking advantage of using a single physical ring with clockwise and counter-clockwise propagation, we implement second order filters with lower tuning energy consumption as being more resilient to some fabrication errors. Cascade ability, remote stabilization potential, energy efficiency along with simple design equations on coupling coefficients are described. We design second-order filters with FWHM from 45 GHz to 20 GHz, crosstalk between channels from -40 dB to -20 dB for different channel spacing at a specific FSR, with energy efficiencies of single ring configurations and compatible with silicon-on-insulator (SOI) state of the art platforms.

show abstract

Signal Processing, Management and Monitoring in Transmission Networks

Vázquez

Montalvo

Ahmed

et al. 2011

Optical Transmission

View full text Add to dashboard Cite

1higher, linear and non-linear fibre impairments become prominent factors affecting the signal quality. Thus, new techniques in both physical layer and network layer are necessary for mitigating impairments to accommodate high-speed traffic (Tomkos et al. 2002). On the other hand, the flexibility of modern networks with dynamic and distributed management, where lightpaths can be dynamically and automatically assigned end-to-end, increases the risk of changing path conditions that affect signal quality and consequently quality of service (QoS) over the lifetime of a connection as well as for subsequent connection set-up requests (on-demand routing and wavelength assignment -RWA). For traditional connection provisioning an ideal physical layer, ignoring transmission impairments (Chlamtac et al. 1992) could be assumed because the implicit per hop regeneration (optics-to-electronics-to-optics conversion -O/E/O) compensated signal impairments hop-by-hop in a rather static manner (section commissioning). For end-to-end all-optically switched connections using photonic cross-connect switches (PXC), the conditions change and common practice is not applicable. Anyhow, intelligent connection provisioning is an important traffic engineering problem, and minimising operational cost as well as efficiently utilising network resources is the main driver. In this context, it seems important to have flexible routing protocols that take into consideration the most relevant physical impairments, and are able to exchange messages with their values as part of the route information with others. This condition, if definitely used to calculate routing, will surely assure better success in data delivery over the network (Huang et al. 2005). Irrespective of the control architecture chosen by an operator of an optical network, the included control plane (in charge of setting up and tearing down optical circuits; also known as lightpaths) needs to have a proper set of tools to satisfyingly deal with physical impairments. The most essential tools are: optical signal monitoring, signal processing and impairment compensation techniques (each all-optically and/or electrically). With the help of these tools, it is possible to predict the QoT (quality of transmission) attainable for a lightpath at a given time (i.e. the latest network-wide monitoring instant), and the control plane can route requests across the network

show abstract

Synthesis of optical filters using microring resonators with ultra-large FSR

Cited by 6 publications

References 20 publications

Optical reconfigurable demultiplexer based on Bragg grating assisted ring resonators

Optical reconfigurable demultiplexer based on Bragg grating assisted ring resonators

Low power consumption silicon photonics tuning filters based on compound microring resonators

Signal Processing, Management and Monitoring in Transmission Networks

Contact Info

Product

Resources

About