Ciena Corporation

Mohammad Ebrahim Mousa Pasandi

Maurice M O'Sullivan

Michael Andrew Reimer

Andrew D Shiner

David V Plant

Michael Hubbard

Kim Byron Roberts

Francisco Javier Vaquero-Caballero

Xueyang Li

Zhenping Xing

Seb Savory

Brandon Taylor Buscaino

David Ives

Aspects of the subject disclosure may include, for example, generating one or more first optical signals, launching the first optical signal into a medium, receiving from the medium one or more second optical signals, mixing the one or more second optical signals with one or more third optical signals to generate one or more mixed signals, obtaining one or more electrical signals from the mixed signal, and generating one or more point spread functions from the one or more electrical signals. Other embodiments are disclosed.

Method and apparatus for coherent spread spectrum optical spectroscopy

An asymmetric coherent receiver includes an optical front end configured to split a received optical signal into two paths, wherein the split received optical signal experiences a different optical transfer function in one of the two paths; two photodetectors each configured to detect power one of the split received optical signals in each of the two paths to obtain corresponding electrical signals; and circuitry configured to perform electrical domain extraction of information of each of the corresponding electrical signals from the two paths, wherein the different optical transfer function provides additional information utilized in optical field reconstruction via direct detection.

Asymmetric direct detection of optical signals

A communication system is configured to generate a perturbed signal by perturbing an amplitude of a spectrum of an original signal in one or more spectral regions, and to propagate the perturbed signal through components of the communication system. The communication system is further configured to obtain a measurement of the perturbed signal in a first spectral region of the one or more spectral regions following the propagation of the perturbed signal, and to calculate an estimate of an impairment associated with the communication system based on the measurement.

Estimation of communication system impairments using spectrally selective signal perturbations

Growing community of inventors

Ottawa, Canada

Mohammad Ebrahim Mousa Pasandi