Optical clock distribution using a mode-locked semiconductor laser diode system

Delfyett, Peter J.; Hartman, Davis H.; Ahmad, Sahrim

doi:10.1109/50.108709

Cited by 103 publications

(34 citation statements)

References 5 publications

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“…The test circuit used 3 µm Metal Oxide Semiconductor Implementation System (MOSIS) technology with 18 optical receivers. P. J. Delfyett, et al, introduced the mode-locked operation of a semiconductor laser system as a jitterless timing source [18]. They demonstrated the optical clock distribution of 1024 separate ports utilizing optical fibers.…”

Section: Optical Clock Distributionmentioning

confidence: 99%

Optically Interconnected Intelligent RAM Multiprocessors (OPTO-IRAM)

Seo¹,

Chatterjee²

2004

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Section: Optical Clock Distributionmentioning

confidence: 99%

Optically Interconnected Intelligent RAM Multiprocessors (OPTO-IRAM)

Seo¹,

Chatterjee²

2004

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“…The semiconductor mode-locked laser has been the subject of extensive research for over a decade [38]- [44]. The motivation for research on semiconductor mode-locked lasers derives from the potential applications as a source of ultra short pulses for electro-optic sampling systems [45,46], optical clock distribution [47,48], and as a source for high speed data communication systems [49].…”

Section: Construction Of the Semiconductor Mode-locked Lasermentioning

confidence: 99%

Radio Frequency Photonic Synthesizer

Logan¹,

Li²

2000

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“…A remaining problem is that of optical-to-electrical conversion [4] which [3], [5], and [6] have tried to solve with some success. However, much remains to be done in this eld even with the encouraging advances achieved in optical clock distribution at the chip, package, board, and cabinet level [1], [7]- [10]. Interesting new directions are currently being pursued using alternative waveguide materials, such as germanium that can be used horizontally and vertically.…”

mentioning

confidence: 99%

Optically-Clocked Instruction Set Extensions for High Efficiency Embedded Processors

Favi

Kluter

Mester

et al. 2012

IEEE Trans. Circuits Syst. I

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Abstract-We propose a technique to localize computation in Instruction Set Extensions (ISEs) that are clocked at very high speed with respect to the processor. In order to save power, data to and from Custom Instruction Units (CIUs) is synchronized via an optical signal that is detected through a Single-Photon Avalanche Diode (SPAD) capable of timing uncertainties as low as 50 ps.The CIUs comprise a free-standing local oscillator serving a computing area of a few tens of square micrometers, thus resulting in extremely reduced power dissipations, since the distribution of a high frequency clock over long distances is avoided. This approach is based on the globally asynchronous locally synchronous concept, whereby the granularity of the local domains is reduced to a minimum, thus enabling extremely high local clock frequencies and low power, while minimizing substrate noise injection and intra-chip interference.Thanks to this approach we can free ourselves from expensive synchronization techniques such as FIFOs, delays, or ip-op based synchronizers by creating xed synchronization points in time where data can be exchanged. The paradigm is demonstrated on a chip designed and fabricated in a standard 90 nm CMOS technology. A full characterization demonstrates the suitability of the approach.Index Terms-Clock distribution, embedded systems, globally asynchronous locally synchronous (GALS), instruction set extensions (ISEs), optical clocking, optically clocked ISEs, single-photon avalanche diode (SPADs).

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Optical clock distribution using a mode-locked semiconductor laser diode system

Cited by 103 publications

References 5 publications

Optically Interconnected Intelligent RAM Multiprocessors (OPTO-IRAM)

Optically Interconnected Intelligent RAM Multiprocessors (OPTO-IRAM)

Radio Frequency Photonic Synthesizer

Optically-Clocked Instruction Set Extensions for High Efficiency Embedded Processors

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