Journal ArticleDOI
Margin measurements in optical amplifier system
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In this paper, the authors estimate the SNR at the receiver's decision circuit when the bit error ratio (BER) is too low to be measured in a reasonable time, and obtain good agreement between the BER predicted using the measured SNR value and the actual measured BER.Abstract:
The margin, or the difference between the received signal-to-noise (SNR) and the SNR required to maintain a given bit error ratio (BER), is important to the design and operation of optical amplifier transmission systems A new tehnique is described for estimating the SNR at the receiver's decision circuit when the BER is too low to be measured in a reasonable time. The SNR is determined from the behavior of the BER as a function of the decision threshold setting in the region where the BER is measurable. The authors obtain good agreement between the BER predicted using the measured SNR value and the actual measured BER. >read more
Citations
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Journal ArticleDOI
Optical phase-shift-keyed transmission
Alan H. Gnauck,Peter J. Winzer +1 more
TL;DR: Differential-phase-shift keying has recently been used to reach record distances in long-haul lightwave communication systems and theoretical as well as implementation aspects of DPSK are reviewed.
Journal ArticleDOI
Optical performance monitoring
Daniel C. Kilper,R. Bach,Daniel J. Blumenthal,D. Einstein,Taha Landolsi,L.M. Ostar,M. Preiss,Alan E. Willner +7 more
TL;DR: In this paper, the role of OPM as an enabling technology for advances in high-speed and optically switched networks is examined, with the focus on fault management and QoS monitoring in the optical domain.
Journal ArticleDOI
Large-scale photonic integrated circuits
Radhakrishnan Nagarajan,C.H. Joyner,Richard P. Schneider,J.S. Bostak,T. Butrie,Andrew Dentai,Vince Dominic,Peter W. Evans,Masaki Kato,M. Kauffman,Damien Lambert,S.K. Mathis,Atul Mathur,R.H. Miles,Matthew L. Mitchell,Mark J. Missey,S. Murthy,Alan C. Nilsson,Frank H. Peters,S.C. Pennypacker,Jacco Pleumeekers,Randal A. Salvatore,R. Schlenker,Robert B. Taylor,Huan-Shang Tsai,M.F. Van Leeuwen,Jonas Webjorn,Mehrdad Ziari,D. Perkins,Jagdeep Singh,S.G. Grubb,M. Reffle,David G. Mehuys,Fred A. Kish,David F. Welch +34 more
TL;DR: An overview of Infinera's current generation of 100 Gb/s transmitter and receiver PICs as well as results from the next-generation 500 G b/s PM-QPSK P ICs are presented.
Journal ArticleDOI
Dispersion Trimming in a Reconfigurable Wavelength Selective Switch
Michael A. F. Roelens,Steven James Frisken,Jeremy Bolger,Dmitri Abakoumov,Glenn Baxter,Simon Poole,Benjamin J. Eggleton +6 more
TL;DR: In this article, the phase front of the optical signal inside the wavelength selective switch is adjusted to compensate for various amounts of dispersion (up to ± 60 ps/nm), tunable for each wavelength division multiplexed channel.
Journal ArticleDOI
Phase Noise Effects on High Spectral Efficiency Coherent Optical OFDM Transmission
TL;DR: In this article, a transmission model for coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems with high-order quadrature amplitude modulation (QAM) constellations is presented.
References
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Book
Principles of Communication Engineering
I. M. Jacobs,J. M. Wozencraft +1 more
TL;DR: Textbook on communication engineering emphasizing random processes, information and detection theory, statistical communication theory, applications, etc.
Journal ArticleDOI
Receiver design for digital fiber optic communication systems, II
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.
Journal ArticleDOI
On the bit error rate of lightwave systems with optical amplifiers
Pierre A. Humblet,Murat Azizoglu +1 more
TL;DR: In this paper, the performance of optical amplifiers and a wideband optical filter is evaluated in the presence of spontaneous noise and photodetector shot noise and compared with those predicted by Gaussian approximations for amplitude shift keying (ASK), Frequency Shift Kening (FSK), or differential phase shift keening (DPSK) modulations.
Journal ArticleDOI
Derivation of analytical expressions for the bit-error probability in lightwave systems with optical amplifiers
TL;DR: In this article, the authors derived the bit-error probability for a lightwave communications system using an amplitude-shift-keying (ASK) pulse modulation format and employing optical amplifiers such that amplified spontaneous emission noise dominates all other noise sources.