Topic
Fiber optic splitter
About: Fiber optic splitter is a research topic. Over the lifetime, 13459 publications have been published within this topic receiving 165984 citations.
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TL;DR: Among the various fiber-optic sensor technologies, especially, technologies such as fiber grating sensors, fiber- Optic gyroscopes, and fiber-Optic current sensors are discussed with emphasis on the principles and current status.
1,610 citations
Book•
01 Jan 1983
TL;DR: The concept of WDM combined with optical amplifiers has resulted in communication links that allow rapid communications between users in countries all over the world as discussed by the authors, which is known as wavelength division multiplexing (WDM).
Abstract: Optical fibers are used extensively for data transmission systems because of their dielectric nature and their large information-carrying capacity. Network architectures using multiple wavelength channels per optical fiber are utilized in local, metropolitan, or wide-area applications to connect thousands of users having a wide range of transmission capacities and speeds. A powerful aspect of an optical communication link is that many different wavelengths can be sent along a fiber simultaneously in the 1300-to-1600- nm spectrum. The technology of combining a number of wavelengths onto the same fiber is known as wavelength division multiplexing (WDM). The concept of WDM used in conjunction with optical amplifiers has resulted in communication links that allow rapid communications between users in countries all over the world.
Keywords:
optical fibers;
attenuation;
photonic systems;
WDM;
optical amplifiers;
dispersion;
nonlinear effects
1,447 citations
01 Jan 1979
TL;DR: Understanding fiber optic transmission systems requires a knowledge of the characteristics of optoelectronic transmitters and receivers, which do not differ much from traditional copper pairs (choice of analog to digital modulation, total attenuation, etc.).
Abstract: Industrial manufacturing of low loss optical fiber cables and their specific splicing toolings, together with recent developments of optoelectronic components will lead to real systems installations in the 1980’s. The requirements for these new systems are related to some of the fiber characteristics:
protection against electromagnetic perturbations
radiation leakage
small size
low weight
electrical isolation
high bandwidth
low attenuation
low cost expectation
Understanding fiber optic transmission systems requires a knowledge of the characteristics of optoelectronic transmitters and receivers, which do not differ much from traditional copper pairs (choice of analog to digital modulation, total attenuation, etc.). Therefore, throughout this course we will limit our effort to descriptions of specific elements, essentially those whose parameters are directly connected to system performance.
1,000 citations
TL;DR: Ethernet passive optical networks are described, an emerging local subscriber access architecture that combines low-cost point-to-multipoint fiber infrastructure with Ethernet, which has emerged as a potential optimized architecture for fiber to the building and Fiber to the home.
Abstract: This article describes Ethernet passive optical networks, an emerging local subscriber access architecture that combines low-cost point-to-multipoint fiber infrastructure with Ethernet. EPONs are designed to carry Ethernet frames at standard Ethernet rates. An EPON uses a single trunk fiber that extends from a central office to a passive optical splitter, which then fans out to multiple optical drop fibers connected to subscriber nodes. Other than the end terminating equipment, no component in the network requires electrical power, hence the term passive. Local carriers have long been interested in passive optical networks for the benefits they offer: minimal fiber infrastructure and no powering requirement in the outside plant. With Ethernet now emerging as the protocol of choice for carrying IP traffic in metro and access networks, EPON has emerged as a potential optimized architecture for fiber to the building and fiber to the home.
716 citations
TL;DR: In this article, it is shown that a proper front-end design incorporates a high-impedance preamplifier which tends to integrate the detector output, and this must be followed by proper equalization in the later stages of the linear channel.
Abstract: This paper is concerned with a systematic approach to the design of the “linear channel” of a repeater for a digital fiber optic communication system. In particular, it is concerned with how one properly chooses the front-end preamplifier and biasing circuitry for the photodetector; and how the required power to achieve a desired error rate varies with the bit rate, the received optical pulse shape, and the desired baseband-equalized output pulse shape. It is shown that a proper front-end design incorporates a high-impedance preamplifier which tends to integrate the detector output. This must be followed by proper equalization in the later stages of the linear channel. The baseband signal-to-noise ratio is calculated as a function of the preamplifier parameters. Such a design provides significant reduction in the required optical power and/or required avalanche gain when compared to a design which does not integrate initially. It is shown that, when the received optical pulses overlap and when the optical channel is behaving linearly in power,1 baseband equalization can be used to separate the pulses with a practical but significant increase in required optical power. This required power penalty is calculated as a function of the input and equalized pulse shapes.
700 citations