Lucent Technologies Inc.

Alcatel Lucent

Joseph Carmine Centanni

Alan H Gnauck

Andrew Roman Chraplyvy

Clinton R Giles

Robert Meachem Jopson

Lawrence Warren Stulz

Colin J McKinstrie

Stojan Radic

Ellsworth C Burrows

Andrew Gompers Dentai

A method of multiple-band switching using a multi-pump fiber parametric switch is demonstrated. The switching architecture combines parametric band amplification, wavelength conversion and selective signal conjugation, enabled by temporal control of at least one pump of the multi-pump parametric device. The switching speed of the present invention is limited by the rise time of the controlled pump(s).

Method and apparatus for multi-band optical switching using multi-pump parametric devices

The specification describes lightwave systems with remotely powered photoelectric generators. Optical power transmitted through the fiber is incident on a remotely located photodiode array. High power conversion efficiency coupled with a specially designed diode array generates sufficient power to operate electromechanical or electrooptic apparatus in the remote station. Long wavelength photodiodes in a circular or polygonal circularly symmetric array are serially connected to increase the voltage to practical operating levels. The photodiodes are fabricated to allow back lighting of the array. The bottom contact layer is made transparent to the wavelength of the power signal. This arrangement allows the contact area to extend over the entire front surface of the diode to reduce contact resistance. It also gives nearly optimum fill factor. The front surface may be metallized so the incident light undergoes a double pass through the absorbing layer.

Long wavelength InGaAs photogenerator

Growing community of inventors

Oceanport, NJ, United States of America

Joseph Carmine Centanni