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Proceedings Paper

Low-cost enhanced performance DFB Lasers
Author(s): Martin Möhrle; Walter Brinker; Ludwig Mörl; Ariane Sigmund; Norbert Grote
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Paper Abstract

A novel DFB laser structure, referred to as CSDFB, is presented that, different from conventional designs, simultaneously allows to obtain very high yield single mode behaviour even without applying facet coatings, high slope efficiency, and low beam divergence. These advantages result from the incorporation of a curved and tapered laser waveguide designed such that a constant period DFB grating can be utilized. Preliminary feedback measurements have indicated enhanced immunity to optical back-reflection in comparison to a conventional DFB structure. The CSDFB design has large potential of reducing transmitter costs due to both reduced chip and module fabrication costs.

Paper Details

Date Published: 6 July 2006
PDF: 6 pages
Proc. SPIE 6350, Workshop on Optical Components for Broadband Communication, 63500P (6 July 2006); doi: 10.1117/12.692919
Show Author Affiliations
Martin Möhrle, Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut (Germany)
Walter Brinker, Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut (Germany)
Ludwig Mörl, Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut (Germany)
Ariane Sigmund, Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut (Germany)
Norbert Grote, Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut (Germany)


Published in SPIE Proceedings Vol. 6350:
Workshop on Optical Components for Broadband Communication
Pierre-Yves Fonjallaz; Thomas P. Pearsall, Editor(s)

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