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Proceedings Paper

High performance quantum dot distributed feedback laser diodes around 1.15 µm
Author(s): J. Koeth; M. Fischer; M. Legge; J. Seufert; R. Werner
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Paper Abstract

Monomode laser diodes in the wavelength range around 1.15μm are of particular interest for various kinds of applications, including frequency doubling where a large part of the spectral range from yellow to green currently remains inaccessible. For efficient frequency conversion, single-frequency laser light, as e.g. obtained from Distributed Feedback Laser (DFB) laser diodes, is an essential prerequisite. One particular challenge at this wavelength range around 1.15μm is to find a gain medium with high internal efficiency. For broad area (BA) lasers, good results have recently been achieved using quantum dots (QDs) or highly strained InGaAs quantum wells (QWs) [1]. In the following, first results for high performance monomode QD DFB laser diodes in the wavelength range of interest are discussed. The spectral gain properties of the underlying QD active region allow to realize DFB lasers with emission spanning an extremely broad wavelength range of 65nm ranging from around 1095nm to 1160nm based on the identical laser structure.

Paper Details

Date Published: 31 January 2008
PDF: 3 pages
Proc. SPIE 6909, Novel In-Plane Semiconductor Lasers VII, 690904 (31 January 2008); doi: 10.1117/12.763157
Show Author Affiliations
J. Koeth, Nanoplus Nanosystems and Technologies GmbH (Germany)
M. Fischer, Nanoplus Nanosystems and Technologies GmbH (Germany)
M. Legge, Nanoplus Nanosystems and Technologies GmbH (Germany)
J. Seufert, Nanoplus Nanosystems and Technologies GmbH (Germany)
R. Werner, Nanoplus Nanosystems and Technologies GmbH (Germany)

Published in SPIE Proceedings Vol. 6909:
Novel In-Plane Semiconductor Lasers VII
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

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