Jds Uniphase Corporation

David William Charles Markin

Martin Matthews

Dan Grobnic

Nenad Duricic

Steven Harold Moffat

Philip Patrick Duggan

Stephen Robert De Hennin

Gonzalo De La Puente

Evgueni Ponomarev

Henry Postolek

Graham Ian Duck

Tinko Eftimov

Serguei Roupassov

Dariusz Sieniawski

An array of optical elements for processing a spatially dispersed optical beam including monitoring optical elements for determining the position of the optical beam in the array is disclosed. The monitoring optical elements have a width that varies in ay direction normal to the array axis, enabling the determination of the beam position across the monitoring elements in both x and y directions. The monitoring optical elements are preferably disposed in the end portions of the array for the beam tilt determination. The optical elements can be e.g. liquid crystal pixels or micro-mirrors.

Optical array with beam alignment feature

A dispersion compensator has a linearly chirped fiber Bragg grating mounted at two ends of an elongated, channel-shaped heat distributor. The distributor has two thermo-electric coolers at two ends, a heating strip for uniform heating of the distributor, a temperature sensor mounted on the distributor in the middle of the grating region, and longitudinally variable heating means attached to the distributor and extending along its length for effecting a longitudinally varying heating of the grating region. The provision of the heating strip helps maintain linearity of the thermal gradient of the distributor while the longitudinally variable heaters facilitate relatively fast dithering of the temperature of the grating region.

Fiber bragg grating dispersion compensator

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Ottawa, Canada

David William Charles Markin