Techno-economic Comparison of Silicon Photonics and Multimode VCSELs

Mahgerefteh, Daniel; Thompson, Craig

doi:10.1364/ofc.2015.m3b.2

Cited by 19 publications

(25 citation statements)

References 5 publications

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“…Then the overall noise is referred back to the input of the RX by dividing by the midband gain of the RX front-end (RT), given by (5). When calculating , selecting the noise integration boundaries could greatly impact the accuracy of the results.…”

Section: Noise Analysis Of a Two-stage Rx Front-endmentioning

confidence: 99%

“…Owing to their superior power and area efficiency in comparison to silicon-based interferometric modulators (IMs), such as Mach-Zehnder interferometers (MZIs) [5], we only describe silicon-photonic TXs based on microring-modulators. For the sake of completeness, Table II lists some of the best-in-class IMs, highlighting the significant tradeoff between area, power consumed due to large driver voltage requirements, insertion loss (IL) and extinction ratio (ER).…”

Section: Optical Link: Transmittermentioning

confidence: 99%

“…A 100 Gb/s link can be implemented using 4x25 Gb/s SWDM. A 100 Gb/s PSM4 (parallel single mode 4-lane) alliance has also been established [52] to support interconnects up to 500 m. PSM4 could incorporate splitting the CW single-wavelength output of one high power laser source [5] with good WPE between 4 parallel silicon-photonic channels. The use of this technique can potentially enhance the overall energy efficiency of the link at the expense of the fiber count.…”

Section: Towards a Power Efficient Tera-bit/s Linkmentioning

confidence: 99%

“…Beyond 100 m, even the higher-bandwidth (BW) OM4 MMFs suffer from significant loss. Due to modal and chromatic dispersion, along with mode partition noise from the MM VCSEL [5], a severe power penalty (> 5 dB) is predicted for a 300 m channel at a bit-error-rate (BER) of 10 -12 [6]. To maintain a low latency for datacenter applications, lower BERs in conjunction with forward error correction (FEC) are undesirable.…”

mentioning

confidence: 99%

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Silicon-Photonics Microring Links for Datacenters—Challenges and Opportunities

Ahmed

Sharkia

Casper

et al. 2016

IEEE J. Select. Topics Quantum Electron.

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The rapid growth of warehouse-scale datacenters demands high-throughput optical interconnects that can span short-to-medium reach distances (< few kilometers). Microringbased silicon-photonics links with single mode fibers (SMFs) are highly promising for these applications. This paper presents an analysis of microring-based links from the holistic perspective of optical devices, CMOS circuits, and system-level link budget and energy-efficiency simulations. Design considerations and tradeoffs for the receiver, transmitter and the overall link are presented, and comparisons are made to the mainstream multimode vertical-cavity surface-emitting laser (VCSEL)-based links with multi-mode fibers (MMFs). Finally, research opportunities are highlighted for further improving the energy efficiency of single-channel and wavelength division multiplexing (WDM)based silicon-photonics links.

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Section: Noise Analysis Of a Two-stage Rx Front-endmentioning

confidence: 99%

Section: Optical Link: Transmittermentioning

confidence: 99%

Section: Towards a Power Efficient Tera-bit/s Linkmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Silicon-Photonics Microring Links for Datacenters—Challenges and Opportunities

Ahmed

Sharkia

Casper

et al. 2016

IEEE J. Select. Topics Quantum Electron.

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show abstract

“…Recently, mega data center offers an application scenario where high-performance integrated photonic devices show advantages in transmission distance over ≥300 m, high speed of ≥25 Gb/s, and more channel counts of ≥4 [1]. Silicon photonics, with its high index contrast nature, provides an effective approach to high density integration.…”

Section: Introductionmentioning

confidence: 99%

Light emitters and modulators on SOI for optical interconnects

Qiu

Liu

2016

SPIE Proceedings

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We discuss light emitters and modulators in silicon photonic interconnects. In particular, we experimentally demonstrate resonant luminescence from Ge quantum dots embedded in a photonic crystal ring resonator (PCRR) at room temperature. Six sharp resonant peaks are observed, which correspond to the resonant modes supported by the PCRR. We further study a high speed silicon-graphene nanobeam modulator, and a silicon spatial light modulator. These devices show great potential in future high density and high capacity interconnection systems.

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Time-delay signatures in multi-transverse mode VCSELs subject to double-cavity polarization-rotated optical feedback

Lin

Khurram

Hong

2016

Optics Communications

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Time delay (TD) signatures are studied experimentally in orthogonal polarizations and in individual transverse modes respectively in a VCSEL operating with three transverse modes. Different types of concealment of the TD signatures are observed when the polarization of feedback is rotated through large angles. Effects of feedback strength and external cavity length on the TD signatures are investigated. Weak feedback leads to better concealment of the TD signatures in the dominant polarization. When the roundtrip time difference between the two external cavities is close to a half of the relaxation oscillation period, the TD signatures are minimized.

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Techno-economic Comparison of Silicon Photonics and Multimode VCSELs

Cited by 19 publications

References 5 publications

Silicon-Photonics Microring Links for Datacenters—Challenges and Opportunities

Silicon-Photonics Microring Links for Datacenters—Challenges and Opportunities

Light emitters and modulators on SOI for optical interconnects

Time-delay signatures in multi-transverse mode VCSELs subject to double-cavity polarization-rotated optical feedback

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