All-Optical Signal Processing

Willner, Alan E.; Khaleghi, Salman; Chitgarha, Mohammad Reza; Yılmaz, Ömer Faruk

doi:10.1109/jlt.2013.2287219

Cited by 433 publications

(217 citation statements)

References 95 publications

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“…Such FSRs are suitable for RF applications. A transition toward larger FSRs will considerably expand the application potential of such photonic signal processor chips, e.g., via tapped-delay-line equalizers, wavelength-division (de)multiplexing, and reconfigurable add-drop multiplexers, for optical communications [49].…”

Section: Discussionmentioning

confidence: 99%

Programmable photonic signal processor chip for radiofrequency applications

Zhuang

Roeloffzen²,

Hoekman

et al. 2015

Optica

344

278

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Integrated microwave photonics, an emerging technology combining radio frequency (RF) engineering and integrated photonics, has great potential to be adopted for wideband analog processing applications. However, it has been a challenge to provide photonic integrated circuits with equal levels of function flexibility as compared with their electronic counterparts. Here, we introduce a disruptive approach to tackle this need, which is analogous to an electronic field-programmable gate array. We use a grid of tunable Mach-Zehnder couplers interconnected in a two-dimensional mesh network, each working as a photonic processing unit. Such a device is able to be programmed into many different circuit topologies and thereby provide a diversity of functions. This paper provides, to the best of our knowledge, the first ever demonstration of this concept and shows that a programmable chip with a free spectral range of 14 GHz enables RF filters featuring continuous, over-two-octave frequency coverage, i.e., 1.6-6 GHz, and variable passband shaping ranging from a 55 dB extinction notch filter to a 1.6 GHz bandwidth flat-top filter.

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Section: Discussionmentioning

confidence: 99%

Programmable photonic signal processor chip for radiofrequency applications

Zhuang

Roeloffzen²,

Hoekman

et al. 2015

Optica

344

278

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“…Recent bandwidth-hungry applications such as data sharing, transmission of ultra high definition video and cloud computing, is driving the need for higher capacities in signal transmission and signal processing [1]. Current electronic digital signal processing (DSP) technologies have been used to demonstrate transmissions with more than 1 Tbit/s capacity [2].…”

Section: Introductionmentioning

confidence: 99%

Advanced Optical Signal Processing using Time Lens based Optical Fourier Transformation

Guan

Roge

Lilllieholm

et al. 2016

Asia Communications and Photonics Conference 2016

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“…Recent technological advances in high speed backbone networks and optical telecommunications, fueled by the growing demand for bandwidth hungry applications, have been driving the quest for photonic circuits capable of delivering high speed signal processing functionalities [1], [2]. Steadily maturing photonic integration technologies of improved yield [3]- [5] have led to impressive demonstrations of functional complex circuits [5] and switching architectures [6]- [8], making firm steps towards Medium-Scale (MS) Photonic Integrated Chips (PICs).…”

Section: Introductionmentioning

confidence: 99%

An adaptive stepsize controlled solver for the dynamic WDM semiconductor optical amplifier response

Vagionas

Bos

2014

SPIE Proceedings

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A time-domain solver for the response of a Semiconductor Optical Amplifier (SOA) relying on multigrid numerical techniques and a wideband steady state material gain coefficient is presented for the first time. Multigrid techniques enable the efficient solution of implicit time discretization schemes for the associated system of coupled differential equations, namely the carrier rate equation in the time domain and the signal amplification in the spatial domain, which in turn enable accuracy-instead of stability-restricted time-discretization of the signals. This allows lifting off the limitations of an equidistant spatio-temporal grid for the representation of the incoming signals adopted by traditional explicit SOA models, releasing an adaptive stepsize controlled solver for the dynamic SOA response with dense timesampling under a rapidly varying SOA signal output and scarce time-sampling when negligible changes are observed.

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All-Optical Signal Processing

Cited by 433 publications

References 95 publications

Programmable photonic signal processor chip for radiofrequency applications

Programmable photonic signal processor chip for radiofrequency applications

Advanced Optical Signal Processing using Time Lens based Optical Fourier Transformation

An adaptive stepsize controlled solver for the dynamic WDM semiconductor optical amplifier response

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