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Proceedings Paper

High-power diode lasers with an aluminium-free active region at 915 nm
Author(s): N. Michel; I. Hassiaoui; M. Calligaro; M. Lecomte; O. Parillaud; M. Krakowski; L. Borruel; J.-M. García-Tijero; I. Esquivias; S. Sukecki; E. C. Larkins
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Paper Abstract

We have developed high-power lasers, which are based on an Al-free active region at 915 nm. The laser structure has very low internal losses of 0.5 cm-1, a very low transparency current density of 86 A/cm2, and a high internal quantum efficiency of 86%. Based on these good results, we have realised narrow-aperture, index-guided tapered lasers which deliver 1 W CW with and M2 beam quality factor of 3.0 using both the 1/e2 and standard-deviation methods. We have also fabricated index-guided tapered lasers with a Clarinet shape, which deliver 0.65 W CW with an M2 beam quality factor of less than 1.5 at 1/e2, and less than 2.5 using the standard deviation method.

Paper Details

Date Published: 3 November 2005
PDF: 9 pages
Proc. SPIE 5989, Technologies for Optical Countermeasures II; Femtosecond Phenomena II; and Passive Millimetre-Wave and Terahertz Imaging II, 598909 (3 November 2005); doi: 10.1117/12.630738
Show Author Affiliations
N. Michel, Alcatel-Thales III-V Lab. (France)
I. Hassiaoui, Alcatel-Thales III-V Lab. (France)
M. Calligaro, Alcatel-Thales III-V Lab. (France)
M. Lecomte, Alcatel-Thales III-V Lab. (France)
O. Parillaud, Alcatel-Thales III-V Lab. (France)
M. Krakowski, Alcatel-Thales III-V Lab. (France)
L. Borruel, Univ. Politécnica de Madrid (Spain)
J.-M. García-Tijero, Univ. Politécnica de Madrid (Spain)
I. Esquivias, Univ. Politécnica de Madrid (Spain)
S. Sukecki, Univ. of Nottingham (United Kingdom)
E. C. Larkins, Univ. of Nottingham (United Kingdom)


Published in SPIE Proceedings Vol. 5989:
Technologies for Optical Countermeasures II; Femtosecond Phenomena II; and Passive Millimetre-Wave and Terahertz Imaging II
Sean M. Kirkpatrick; David H. Titterton; Roger Appleby; J. Martyn Chamberlain; Razvan Stoian; Keith A. Krapels, Editor(s)

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