Nortel Networks Corporation

Other

Northern Telecom Limited

Gregory Dean May

Kim Byron Roberts

Maurice Stephen O'Sullivan

Alan Glen Solheim

Robert William Keys

Mark R Hinds

Stephane St-Laurent

Loren Berg

Avid E Lemus

Loren Scott Berg

Marc Gagnon

Gen G Ribakovs

Maurice Stephen O'sullivan

An ergonomic duty belt assembly comprising: a longitudinally and laterally flexible inner belt having an exterior face provided with a hook and loop fabric; a longitudinally and laterally flexible supporting belt adapted to be affixed over said inner belt having an interior face provided with mating hook and loop fabric; a base material of each of said inner belt, said supporting belt, said hook and loop fabric and said mating hook and loop fabric being woven with a material having elasticity properties, thus providing longitudinal and lateral flexibility of said duty belt assembly; said outer belt being removably mountable to said inner belt, said hook and loop fabric on said inner belt being adapted to be affixed to said mating hook and loop fabric of said supporting belt.

Ergonomic duty belt assembly

A modular bidirectional optical amplification system includes a multiwavelength dual amplifier building block, a multiwavelength unidirectional booster amplifier BB, a unidirectional and a bidirectional Optical Service Channel (OSC) BB, an Intelligent Optical Terminal Accessway (IOTA) module, and an interleaved filter BB. The dual amplifier BB is available in a C-band version, an E-band version and a hybrid version, and provides unidirectional or bidirectional multichannel amplification. The booster amplifier is available in a C-band version, an E-band version and in a booster plus variant; one for the C-band and one for E-band. The unidirectional and bidirectional OSC BBs provide a means for OAM&P functionality to the optical network. The IOTA BB provides multiplexing and demultiplexing, and the filter BB provides separation of the signal into grid-1 and grid-2 channels.

Highly scalable modular optical amplifier based subsystem

An accurate method for characterizing optical fiber using a modest enhancement to equipment that is already in place for other purposes within an optical transmission system is thereby disclosed. In particular, optical amplifier light sources already embedded in transmission equipment are used to provide accurate characterization information in addition to their conventional purpose. Therefore, the invention permits fiber characterization at little additional cost over the optical amplifier light sources already present in a system. Furthermore, the need of going out to the field, disconnecting the transmission equipment and performing the field measurements with separate test equipment is eliminated.

Out of band fiber characterization using optical amplifier light sources

A modular bidirectional optical amplification system includes a multiwavelength dual amplifier building block, a multiwavelength unidirectional booster amplifier BB, a unidirectional and a bidirectional Optical Service Channel (OSC) BB, an Intelligent Optical Terminal Accessway (IOTA) module, and an interleaved filter BB. The dual amplifier BB is available in a C-band version, an E-band version and a hybrid version, and provides unidirectional or bidirectional multichannel amplification. The booster amplifier is available in a C-band version, an E-band version and in a booster plus variant;. one for the C-band and one for E-band. The unidirectional and bidirectional OSC BBs provide a means for OAM&P functionality to the optical network. The IOTA BB provides multiplexing and demultiplexing, and the filter BB provides separation of the signal into grid-1 and grid-2 channels.

The invention provides a method and system for transmitting very high bit rates over an optical link, using unidirectional and bidirectional WDM technology. The 1550 nm window for optical transmission is spatially separated into two bands, 'Red' and 'Blue', and the channels in each band are selected so that respective wavelengths present a substantially equal gain tilt. A fiber amplifier designed according to spatial separation and wavelength selection of the invention is disclosed, along with multiple span WDM network topologies.

Optical transmission systems using optical amplifiers and wavelength

A wheel for facilitating rolling of a table over a ground surface. The inventive device includes a mounting assembly for securing to a lower end of a table leg. A wheel support assembly is pivotally mounted to the mounting assembly and rotatably supports a wheel beneath the table leg. The wheel support assembly can be pivoted laterally of the table leg such that the mounting assembly engages the ground to preclude unintentional movement of the table.

Growing community of inventors

Ottawa, Canada

Gregory Dean May