Multimode Polymer Waveguide Components for Complex On-Board Optical Topologies

Hashim, A.; Bamiedakis, N.; Penty, R.V.; White, I.H.

doi:10.1109/jlt.2013.2278382

Cited by 24 publications

(14 citation statements)

References 25 publications

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“…The insertion loss per crossing was found to be 0.057dB with negligible cross talk between the two waveguides. This also shows good improvement over the previously reported value of 0.1dB/crossing between two multimode polymer waveguides [17]. …”

Section: Waveguide Crossingsupporting

confidence: 70%

“…Here we demonstrate a method of connecting a network of passive optical components with optical components in silicon. In this demonstration we use the technique introduced in [17] to couple light from a dielectric waveguide to a photonic crystal cavity in silicon. This system acts as a notch filter which can, when combined with an integrated pn junction, be used to modulate [18] or detect optical signal [19].…”

Section: Coupling To a Silicon Photonic Crystalmentioning

confidence: 99%

“…From the spectrum, the measured Q-factor is 20,000 with an extinction ratio of 3.5dB, this corresponds to intrinsic Q-factor of 29,000 (according to [21]). The extinction ratio can further be improved by improving the K-space matching between the waveguide mode (by changing the waveguide design and/or waveguide material) and the PhC mode (by optimally designing the PhC cavity) as discussed in [17]. The ripples visible in the spectrum are caused by the reflections from the waveguide facets, which can be eliminated by using antireflection coatings.…”

Section: Coupling To a Silicon Photonic Crystalmentioning

confidence: 99%

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Toolkit for Photonic Integrated Circuits Based on Inverted Rib Waveguides

Debnath

Moore

Liles

et al. 2015

J. Lightwave Technol.

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Abstract-We have performed an exploration of inverted rib waveguide platform for use in optical backplanes. This entailed the design, optimization, and characterization of a variety of passive optical components that may serve as a basis for the functions required of an on-chip optical networks. The presented design introduces an inverted-rib template which consists of a polymer waveguide layer. We have successfully fabricated and demonstrated low-loss waveguides, and also functional passive devices such as directional couplers, multi-mode interferometers, waveguide bends and crossings, and distributed Bragg reflectors. We also demonstrate a way of coupling active components (e.g. in silicon) to such a photonic integrated circuit.Index Terms-Optical backplane, opto-electronic integration, polymer waveguide, passive optical components.

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Section: Waveguide Crossingsupporting

confidence: 70%

Section: Coupling To a Silicon Photonic Crystalmentioning

confidence: 99%

Section: Coupling To a Silicon Photonic Crystalmentioning

confidence: 99%

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Toolkit for Photonic Integrated Circuits Based on Inverted Rib Waveguides

Debnath

Moore

Liles

et al. 2015

J. Lightwave Technol.

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“…(a) waveguide bends require a bending radius, and (b) crossings are allowed in the same layer (a crossing angle of 90 o is preferable due to losses and crosstalk) [22,23].…”

Section: Lay-outs Of Interconnection Network On Opcbsmentioning

confidence: 99%

“…Measurements for crosstalk can be found in [21], but only for the examined bus architecture. Another manufacturing issue for OPCBs is that the performance of multimode waveguide components depends on the launch conditions at the component input (see discussion in [23]). Note that we have not assumed WDM, which would enable multiple wavelengths to be transferred within a single waveguide.…”

Section: Lay-outs Of Interconnection Network On Opcbsmentioning

confidence: 99%

Laying out interconnects on optical printed circuit boards

Siokis

Christodoulopoulos

Varvarigos

2014

Proceedings of the Tenth ACM/IEEE Symposium on Architectures for Networking and Communications Systems

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Short distance optical interconnections, on-printed circuit boards, on-backplanes, and even on-chip, are a promising solution for replacing copper interconnections in future Data Center and HPC systems. Since photonic technology introduces new network building blocks, topology design for all the packaging levels should be reconsidered. This paper focuses on the on-board level of the packaging hierarchy, and proposes lay-out strategies for optical interconnection networks on optical printed circuit boards (OPCBs), based on direct topology families (tori, meshes and fully connected networks). We also describe a methodology for designing OPCBs given a set of input parameters, including building blocks specifications as well as traffic demands. The onboard topology design methodology generates all the feasible designs within the topology families examined, following our proposed OPCB lay-out approach, and selects the optimal designs based on specific optimization criteria.

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