Tunable dispersion compensation at 10 Gb/s and 40 Gb/s using multicavity all-pass etalons

Moss, David J.; Lunardi, L.M.; Lamont, Michael R. E.; Randall, G.; Colbourne, Paul; Chandrasekhar, S.; Buhl, L.

doi:10.1109/ofc.2003.1247568

Cited by 36 publications

(30 citation statements)

References 9 publications

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“…Exploiting the band-edge in FBG and similarly in etalons (thin-film filters) -often by putting multiple filters in sequence, enables very accurate dispersion control across a wide band. [32,33]. So-called W-shaped DCFs have a W-formed index profile: a high-index core is surrounded by a low-index ring, and outside of this ring there is another ring of high index, which is finally surrounded by a low-index cladding.…”

Section: Omniguide Fiber With Defectsmentioning

confidence: 99%

Dispersion tailoring and compensation by modal interactions in OmniGuide fibers

Engeness¹,

Ibanescu²,

Johnson³

et al. 2003

Opt. Express

108

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We present a method for dispersion-tailoring of OmniGuide and other photonic band-gap guided fibers based on weak interactions ("anticrossings") between the core-guided mode and a mode localized in an intentionally introduced defect of the crystal. Because the core mode can be guided in air and the defect mode in a much higher-index material, we are able to obtain dispersion parameters in excess of 500,000 ps/nm-km. Furthermore, because the dispersion is controlled entirely by geometric parameters and not by material dispersion, it is easily tunable by structural choices and fiber-drawing speed. So, for example, we demonstrate how the large dispersion can be made to coincide with a dispersion slope that matches commercial silica fibers to better than 1%, promising efficient compensation. Other parameters are shown to yield dispersion-free transmission in a hollow OmniGuide fiber that also maintains low losses and negligible nonlinearities, with a nondegenerate TE01 mode immune to polarization-mode dispersion (PMD). We present theoretical calculations for a chalcogenide-based material system that has recently been experimentally drawn.

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Section: Omniguide Fiber With Defectsmentioning

confidence: 99%

Dispersion tailoring and compensation by modal interactions in OmniGuide fibers

Engeness¹,

Ibanescu²,

Johnson³

et al. 2003

Opt. Express

108

View full text Add to dashboard Cite

show abstract

“…This did not, however, have any effect on the speed or throughput of our system. Moreover, in fact this can be dramatically reduced or virtually eliminatedeasily to < 200 psjust by using any type of compact device that can replace the dispersive delay of the fibre, such as sampled Bragg gratings or etalon based tuneable dispersion compensators [90][91][92][93][94][95].…”

Section: Resultsmentioning

confidence: 99%

Kerr microcombs based on soliton crystals for high-speed, scalable optical neural networks

Moss¹

2020

Preprint

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Optical artificial neural networks (ONNs) have significant potential for ultra-high computing speed and energy efficiency. We report a new approach to ONNs based on integrated Kerr micro-combs that is programmable, highly scalable and capable of reaching ultra-high speeds, demonstrating the building block of the ONN — a single neuron perceptron — by mapping synapses onto 49 wavelengths to achieve a single-unit throughput of 11.9 Giga-OPS at 8 bits per OP, or 95.2 Gbps. We test the perceptron on handwritten-digit recognition and cancer-cell detection — achieving over 90% and 85% accuracy, respectively. By scaling the perceptron to a deep learning network using off-the-shelf telecom technology we can achieve high throughput operation for matrix multiplication for real-time massive data processing.

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“…Typically, only about 2-km of SMF, yielding a dispersion of 34 ps/nm, is needed. This is within the range of multi-channel tunable dispersion compensators [140][141][142][143], which can also be designed with a builtin dispersion slope offset. This approach would not only yield a compact and latency free delay but would enable tunability to adjust the Nyquist zone.…”

Section: Rf Transversal Filter: Theory and Experimentsmentioning

confidence: 99%

RF and microwave photonic high bandwidth signal processing based on Kerr micro-comb sources

Moss¹

2020

Preprint

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Integrated Kerr micro-combs are a powerful source for generating multiple wavelength channels to achieve photonic radio frequency (RF) and microwave signal processing, particularly in the context of transversal filters. They offer competitive advantages including a compact device footprint, high versatility, large numbers of wavelengths, and wide Nyquist bands. Here, we review recent progress on Kerr micro-comb-based photonic RF and microwave high bandwidth temporal signal processing, including integral and fractional Hilbert transforms, differentiators as well as integrators. The strong potential of optical micro-combs for RF photonic applications in terms of functions and integrability is also discussed.

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Tunable dispersion compensation at 10 Gb/s and 40 Gb/s using multicavity all-pass etalons

Cited by 36 publications

References 9 publications

Dispersion tailoring and compensation by modal interactions in OmniGuide fibers

Dispersion tailoring and compensation by modal interactions in OmniGuide fibers

Kerr microcombs based on soliton crystals for high-speed, scalable optical neural networks

RF and microwave photonic high bandwidth signal processing based on Kerr micro-comb sources

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