Optical System Performance Measurements

Hui, Rongqing; O’Sullivan, Maurice

doi:10.1016/b978-0-12-373865-3.00005-7

Cited by 7 publications

(7 citation statements)

References 46 publications

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“…To date, several fibre surveillance, in-service monitoring or active fibre monitoring methods have been devised [2][3][4][5] to protect channels from physical layer attacks [6][7][8] . There are generally two categories of attack detection techniques, based on their working principles 7,9 : (1) methods that rely on additional statistical analysis of the communications signals (e.g., mean optical power monitoring, bit error rate (BER) measurement and optical spectrum analysis (OSA)) and (2) methods that rely on sending a special signal devoted to investigative purposes (e.g., optical time-domain reflectometry (OTDR) and pilot tones). The parameters that are monitored to ensure security indicate the degree to which security is violated.…”

Section: Current Classical Attack Detection Methodsmentioning

confidence: 99%

Secure optical communication using a quantum alarm

et al. 2020

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Optical fibre networks are advancing rapidly to meet growing traffic demands. Security issues, including attack management, have become increasingly important for optical communication networks because of the vulnerabilities associated with tapping light from optical fibre links. Physical layer security often requires restricting access to channels and periodic inspections of link performance. In this paper, we report how quantum communication techniques can be utilized to detect a physical layer attack. We present an efficient method for monitoring the physical layer security of a high-data-rate classical optical communication network using a modulated continuous-variable quantum signal. We describe the theoretical and experimental underpinnings of this monitoring system and the monitoring accuracy for different monitored parameters. We analyse its performance for both unamplified and amplified optical links. The technique represents a novel approach for applying quantum signal processing to practical optical communication networks and compares well with classical monitoring methods. We conclude by discussing the challenges facing its practical application, its differences with respect to existing quantum key distribution methods, and its usage in future secure optical transport network planning.

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Section: Current Classical Attack Detection Methodsmentioning

confidence: 99%

Secure optical communication using a quantum alarm

et al. 2020

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“…However, the students will have to note that G.655 cables may be a bit more expensive than the conventional G.652 ones and that as far as the terminal equipment is concerned, the 1550-nm technology may be more expensive than the 1310-nm one. Finally, students will be asked to comment on the BER testing of the above links mainly regarding the measurement arrangements as well as its possible duration for an intended BER of 10 −9 [3,9].…”

Section: General Remarksmentioning

confidence: 99%

Engaging Electronic Engineering Students in Realistic Engineering Problems: Calculations on the Feasibility and Implementation of Optical Communication Links

2022

IJETI

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The article describes a task on the feasibility and possible options regarding the implementation of actual optical communication links. The task regards three (3) fiber-optic links with different transmission lengths and bit-rates and the students have to decide on the feasibility and implementation options for those links. The task is formulated in a problem-solving manner (in the sense that it refers to actual situations, more than one options may be considered feasible while some solutions may lead to revisiting initial calculations on the basis of new data). The basic aim of the task is the students to work on issues that most probably will encounter during their professional life and, at the same time, develop a conceptual understanding and a working knowledge on a broad range of essential concepts and notions regarding optical communication links.

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“…Optical links that were employed in HEP experiments covered at most distances on the order of hundreds of meters and, in principle, did not need to be optically amplified. To mimic the final application scenario, BER performances were evaluated at a constant optical signal-to-noise ratio (OSNR) by varying the optical power at the receiver [47].…”

Section: Measurement Proceduresmentioning

confidence: 99%

Design and Performance Evaluation of Multi-Gb/s Silicon Photonics Transmitters for High Energy Physics

et al. 2020

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Optical links are rapidly becoming pervasive in the readout chains of particle physics detector systems. Silicon photonics (SiPh) stands as an attractive candidate to sustain the radiation levels foreseen in the next-generation experiments, while guaranteeing, at the same time, multi-Gb/s and energy-efficient data transmission. Integrated electronic drivers are needed to enable SiPh modulators’ deployment in compact on-detector front-end modules. A current-mode logic-based driver harnessing a pseudo-differential output stage is proposed in this work to drive different types of SiPh devices by means of the same circuit topology. The proposed driver, realized in a 65 nm bulk technology and already tested to behave properly up to an 8 MGy total ionizing dose, is hybridly integrated in this work with a lumped-element Mach–Zehnder modulator (MZM) and a ring modulator (RM), both fabricated in a 130 nm silicon-on-insulator (SOI) process. Bit-error-rate (BER) performances confirm the applicability of the selected architecture to either differential and single-ended loads. A 5 Gb/s data rate, in line with the current high energy physics requirements, is achieved in the RM case, while a packaging-related performance degradation is captured in the MZM-based system, confirming the importance of interconnection modeling.

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Optical System Performance Measurements

Cited by 7 publications

References 46 publications

Secure optical communication using a quantum alarm

Secure optical communication using a quantum alarm

Engaging Electronic Engineering Students in Realistic Engineering Problems: Calculations on the Feasibility and Implementation of Optical Communication Links

Design and Performance Evaluation of Multi-Gb/s Silicon Photonics Transmitters for High Energy Physics

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