Crosstalk analysis of aligned and misaligned free-space optical interconnect systems

Hu, Wenhua; Li, Xiujian; Yang, Jiankun; Kong, Di

doi:10.1364/josaa.27.000200

Cited by 32 publications

(27 citation statements)

References 14 publications

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“…In order to reduce the diffraction cross talk between neighboring interconnects, free-space optical interconnect systems can use MLs with Gaussian transmittance [103][104][105][106]. The advantages of this configuration in minimizing cross talk have been proven through simulation of the optical field at the detector array.…”

Section: Optical Interconnectsmentioning

confidence: 99%

Fabrication, characterization, and applications of microlenses

et al. 2015

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Microlenses (MLs) and microlens arrays (MLAs) are assuming an increasingly important role in optical devices. In response to this rapid evolution in technology, emphasis is being placed on research into new manufacturing methods for these devices as well as the characterization of their performance. This paper provides an overview of the fabrication of MLs and MLAs by electrical, mechanical, chemical, and optical methods. As each processing method has distinct advantages and limitations, the most significant characteristic parameters and the measurement of these parameters are discussed for each method. These parameters are then used as indices to evaluate and improve each of the processing methods. Some examples of practical applications of MLAs, especially for micromechanical optoelectronic devices, are also given. This paper aims to summarize the present development and the state of the art in processing technology of MLs and MLAs.

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Section: Optical Interconnectsmentioning

confidence: 99%

Fabrication, characterization, and applications of microlenses

et al. 2015

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“…This optical system consists of non-diffracting light sources array, microlens array, and detectors array. The light sources array is placed at a distance 1 d from the microlens array. The distance between the detector array and the microlenses array is 2 d .…”

Section: Optical Field At Detector Planementioning

confidence: 99%

“…Crosstalk due to light propagation diffraction and diffraction from the apertures of microlenses is considered as one of the important problems that affects the performance of free space optical interconnects (FSOIs) system, namely, the signal to crosstalk ratio [1]- [8]. In these arrayed optical systems the crosstalk noises from neighboring channels sum up in the victim channel and degrade the signal-to-noise ratio (SNR) at the receiver input.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Paraxial Free Space Optical Interconnects System that Uses Bessel Beams and Micro-Lenses with Circular Apertures

Al-Ababneh¹

2014

IJCEE

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Abstract-In this article the performance of microlens based free space optical interconnects system under paraxial approximations is considered. Instead of using Gaussian beams, we propose the use of the Bessel beams to transfer the information. The performance of the proposed system is evaluated and compared with that of Gaussian beams using the signal to crosstalk ratio as the system metric. It is shown that the optical system that uses Bessel beams gives superior results when used in applications with large interconnects length.Index Terms-Bessel beams, diffraction, free space optical interconnects, gaussian beams, non-diffracting beams.

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“…Waveguides embraces the spheres of intra-chip photonic interconnects and networks [3] as well as enhancement of current PCB inter-chip connections with integrated optical waveguides [4][5][6]. Free-space solutions involve the use of micro-mirrors, micro-lenses and other active [7] and passive [8][9][10] optical elements to provide endto-end optical interconnects. Wavelength division multiplexing (WDM), proven to be effective in long distance fiber-optical communication systems are considered to be non practical for short-range optical interconnects due to the significant area and power overhead required for wavelength multiplexing/demultiplexing [11] and because of manufacturing complexity.…”

Section: Introductionmentioning

confidence: 99%

“…In order to overcome alignment limitations and design and manufacturing complexity, both for free-space optical solutions and for fiber/waveguides optical links [1,8,12], the concept of the unguided optical communication bus (UOCB) has been introduced.…”

Section: Introductionmentioning

confidence: 99%

Unguided optical communication bus for next-generation computers: Design concept

Bykhovsky

Arnon

2010

2010 IEEE 26-Th Convention of Electrical and Electronics Engineers in Israel

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In order to further scale down the size of computers and increase their speed, optical technology is expected to substitute electrical technology for inter-chip motherboard communication. The increasing inter-chip requirements makes it extremely difficult to overcome the delay, power, and bandwidth limitations of the existing electrical wires technology In this research, unguided optical communication bus (UOCB) design for inter-chip communication is analyzed. A UOCB includes transceiver arrays for each chip that transmit information without a waveguide, such that an array of beams propagates through a solid plate.The solid plate is the computer motherboard and is used to hold the chip physically and, in addition, as a propagation medium for the communication beams. The bus space is reused, or multiplexed, such that more than one beam propagates though it simultaneously. The communication through the bus takes advantage of the scattering effect, reflection and diffusion from the walls. We examined the data transmission requirement for uncorrelated optical communication paths between the multiple-input multiple-output (MIMO) optical receiver and transmission arrays over highly diffused propagation bus. Each optical communication path between potential receiver and transmitter locations was described in terms of the optical channel gain, representing the individual optical path. An example of a MIMO gain matrix H between multiple spatial locations was evaluated.

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Crosstalk analysis of aligned and misaligned free-space optical interconnect systems

Cited by 32 publications

References 14 publications

Fabrication, characterization, and applications of microlenses

Fabrication, characterization, and applications of microlenses

Performance Analysis of Paraxial Free Space Optical Interconnects System that Uses Bessel Beams and Micro-Lenses with Circular Apertures

Unguided optical communication bus for next-generation computers: Design concept

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