Extending the Reach of Short-Reach Optical Interconnects With DSP-Free Direct Detection
Journal of Lightwave Technology, 2017Coherent detection is the usual solution to achieve high bit rate transmission over long distance. However, it requires a local oscillator and energy consuming digital signal processing that make it not suitable for cost and energy sensitive interconnections and short haul links. In these applications, direct detection is the preferred solution and the
Forestieri, Enrico +5 more
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“Overview of short-reach optical interconnects: From VCSELs to silicon nanophotonics”
2010 IEEE Hot Chips 22 Symposium (HCS), 2010This article consists of a collection of slides from the author's conference presentation on short-reach optical interconnection from VCSELs to silicon nanophotonics. Some of the specific topics discussed include: an introduction to the technology of optical interconnects; fibers, connectors, and module packaging; packaging processes; energy efficiency
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Multi-channel optical interconnects for short-reach applications
53rd Electronic Components and Technology Conference, 2003. Proceedings., 2004As data rates have increased over time, fiber-optic lis have replaced those in copper media at successively shorter and shorter distances. In this paper we will examine the factors that have driven this trend, and investigate current and future short reach optical interconnect technologies.
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Recent progresses of advanced CAP modulation for short reach optical interconnections
2016 IEEE Optoelectronics Global Conference (OGC), 2016Multi-dimensional carrierless amplitude phase (CAP) modulation attracts a lot interest in recent optical communications as an advanced modulation format with improved performance. In this study, we have demonstrated a multiband multi-dimensional CAP modulation scheme and investigated its applications in short reach optical communication systems ...
Jiangbing Du +4 more
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CWDM for very-short-reach and optical-backplane interconnections
SPIE Proceedings, 2002Course Wavelength Division Multiplexing (CWDM) provides access to next generation optical interconnect data rates by utilizing conventional electro-optical components that are widely available in the market today. This is achieved through the use of CWDM multiplexers and demultiplexers that integrate commodity type active components, lasers and ...
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NRZ, DB, and DMT performance for short-reach VCSEL-based optical interconnects
Optical Interconnects XXI, 2021In this paper, we perform a comparison of three modulation formats: NRZ, duo binary and DMT in combination with the state of the art 850 and 910nm VCSELs for their application in short reach high speed optical links. The system for NRZ and DB utilizes feasible for deployment equalization including a 9-tap finite impulse response filter and raised ...
Lukasz Chorchos +12 more
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AI in performance optimization of short reach optical interconnects
Optical Fiber Communication Conference (OFC) 2026We review recent AI techniques for short-reach optical links and demonstrate DSP design for a bipolar PAM system with a direct-detection receiver using physically assisted AI, achieving measurable performance gains over conventional adaptive equalization–based receivers.
Potì, Luca +11 more
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Short Reach Optical Interconnects with Single Externally Modulated Laser Operated in C-Band
2018 20th International Conference on Transparent Optical Networks (ICTON), 2018Datacenters experience massive traffic growth due to expansive growth of cloud services and online gaming [1]. This trend leads to technical and economic challenges to keep up scalability for bandwidth in short reach optical interconnects. It is of critical importance to enable a cost-efficient solution for 400 Gbps links [2].
Lu Zhang, Sergei Popov, Jiajia Chen
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Short-Reach Optical Interconnects Employing High-Density Parallel-Optical Modules
IEEE Journal of Selected Topics in Quantum Electronics, 2010This paper reviews the high-density parallel-optical modules for use in board-to-board application in optical interconnects and describes their application, mechanical sizes, electrical-pluggable interfaces, optical-pluggable interfaces, transmission performance, and power consumption. Since board-to-board optical interconnects require a high data rate
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A Robust Baud-Rate Timing Recovery for Short-Reach Coherent Optical Interconnections
Optical Fiber Communication Conference (OFC) 2025A novel baud-rate timing recovery scheme is experimentally demonstrated in a 118 GBaud PDM 16QAM system. The proposed method exhibits robustness against polarization crosstalk and lower jitter, leading to superior BER performance compared to traditional schemes.
Siyu Gong +6 more
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