Ciena

About: Ciena is a company organization based out in Hanover, Maryland, United States. It is known for research contribution in the topics: Signal & Node (networking). The organization has 1259 authors who have published 1557 publications receiving 25989 citations.

Polarization activity monitoring of an aerial fiber link in a live network

Abstract: We present state of polarization measurements from long-term monitoring of a 750-km aerial fiber. Polarization rotation rate and magnitude of the polarization change were recorded for more than 1330 hours over 22 months.

Recent progress on LASOR optical router and related integrated technologies

Abstract: In this talk we review the latest progress on the DOD-N LASOR optical router project. Architectural studies including design and buffering will be discussed as well as prototype node performance. Recent results in integration in InP and Si/InP platforms will be described.

Digital optical spectral shaping

Abstract: A method and system for generating an optical channel signal for transmission through an optical fiber link of an optical communications system. A digital filter processes an input data signal using a compensation function and a shaping function to generate a pair of multi-bit sample streams representing a target optical E-field envelope of the optical channel signal. A modulator modulates an optical carrier light using the pair of multi-bit sample streams to generate the optical channel signal. The compensation function is designed to at least partially compensate impairments of the optical fiber link. The predetermined shaping function is designed to modify a baseband spectrum of the target optical E-field envelope.

Quantification of scattering from fiber surface irregularities

Abstract: A quantitative description of the effects of fiber endface defects such as scratches and digs does not exist in the literature. We show, by considering surface scattering from the fiber endface, that such a description can be given in terms of a single parameter, which is a measure of the increase in backscattering due to the defect. We present our results in terms of some assumed values of this parameter.

Systems and methods for handling performance monitoring data

Abstract: The present disclosure provides systems and methods for handling performance monitoring (PM) data in a database in a manner that supports different PM data sets from different network element (NE) device types in an integrated manner. The present invention defines a single database structure that can be utilized to store, handle, retrieve, etc. PM counters from multiple NEs including NEs of different types, e.g. SONET/SDH NE, DWDM NE, optical switch, Ethernet switch, etc. The single database enables an efficient mechanism to handle PM data in a uniform way across a network with different device types.