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Deposition Sciences Inc. - Difficult Coatings - LB - 8/23

Ion Patterning Yields Distributed Feedback Lasers

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A research team from the Universität Würzburg in Germany and the Alcatel Corporate Research Center in Marcoussis, France, announced in the Sept. 13 issue of Applied Physics Letters a simplified technique for the production of InP-based distributed feedback lasers. The team employed ion-beam lithography to define the coupled index and gain gratings on the passive section of the 1550-nm laser diodes, eliminating the need for two growth steps, additional phase shifts and antireflection coatings. The lasers have applications in dense wavelength division multiplexing systems. The...Read full article

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    Published: November 1999
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