Lucent Technologies Inc.

Rajan D Deshmukh

John A Rogers

Benjamin John Eggleton

Kenneth Stephen Feder

Kirk William Baldwin

Jon W Engelberth

Paul Steinvurzel

Robert A Macharrie

Daniel Flanagan Baldwin

A thermally tunable optical fiber device comprises a length of optical fiber including a device disposed within a microcapillary heater. The microcapillary heater can include a thin film resistive heater. The fiber itself can optionally include a thin film resistive heater overlying the device, and a plurality of nested microcapillary tubes can optionally provide a plurality of successive concentric heaters overlying the device. The heaters films can be films with uniform, tapered or periodically varying thickness. The heaters can be single layer or multiple layer. Multiple layer films can be superimposed with intervening insulating layers or plural layers can be formed on different angular regions of the microcapillary. Thus one can provide virtually any desired temperature versus length profile along the fiber device.

Thermally tunable fiber devices with microcapillary heaters

A semiconductor chip (10) has a plurality of metallized members (12) that are each advantageously bumped with a volume of gallium amalgam (18) to render the members wettable by a conventional solder.

Semiconductor device having a layer of gallium amalgam on bump leads

Growing community of inventors

Trenton, NJ, United States of America

Rajan D Deshmukh