Share Email Print
cover

Proceedings Paper

Incoherent aperture beam combining of quantum cascade lasers
Author(s): Katrin Dahl; Michael Raab; Hans Dieter Tholl
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Quantum cascade lasers can be designed to emit at any desired wavelength in the mid-infrared. When the optical output power of a single quantum cascade laser is too low, the beams of different lasers can be combined, e.g. by incoherent aperture beam combining. For incoherent aperture beam combining the laser beams are arranged side by side on the aperture of the (multi-) laser system and combine in the far field. The technique is neither limited to any number of lasers nor to any laser characteristics. We investigated incoherent aperture beam combining of quantum cascade laser beams in experiment and simulations at different distances from the laser aperture. We present results of combining laser sources of different wavelengths and demonstrate advantages of various beam arrangements.

Paper Details

Date Published: 7 October 2014
PDF: 6 pages
Proc. SPIE 9251, Technologies for Optical Countermeasures XI; and High-Power Lasers 2014: Technology and Systems, 925109 (7 October 2014); doi: 10.1117/12.2066166
Show Author Affiliations
Katrin Dahl, Diehl BGT Defence GmbH & Co. KG (Germany)
Michael Raab, Diehl BGT Defence GmbH & Co. KG (Germany)
Hans Dieter Tholl, Diehl BGT Defence GmbH & Co. KG (Germany)


Published in SPIE Proceedings Vol. 9251:
Technologies for Optical Countermeasures XI; and High-Power Lasers 2014: Technology and Systems
David H. Titterton; Willy L. Bohn; Harro Ackermann; Mark A. Richardson; Robert J. Grasso, Editor(s)

© SPIE. Terms of Use
Back to Top