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Proceedings Paper

Pulse shaping by incoherent beam combining of several Watt-level QCL modules at 4.0 µm
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Paper Abstract

We report on the temporally controlled combination of the emission of multiple quantum cascade laser modules. The combination is demonstrated and allows for temporal pulse shaping at a target position. The laser chips are packaged individually in stand-alone modules that can provide an average optical output power on Watt-level. Timing is provided by integrated microcontrollers which allow for comfortable output synchronization of several modules. Thus we have reached a timing accuracy in the order of better than 10 ns. The operation is demonstrated for a wavelength of λ = 4 μm, but can be easily adapted to other wavelengths that are relevant for sensing, free space communication or directional infrared counter measure applications.

Paper Details

Date Published: 9 October 2018
PDF: 7 pages
Proc. SPIE 10797, Technologies for Optical Countermeasures XV, 107970M (9 October 2018); doi: 10.1117/12.2326593
Show Author Affiliations
F. Münzhuber, Diehl Defence GmbH & Co. KG (Germany)
R. G. Speer, Diehl Defence GmbH & Co. KG (Germany)


Published in SPIE Proceedings Vol. 10797:
Technologies for Optical Countermeasures XV
David H. Titterton; Robert J. Grasso; Mark A. Richardson, Editor(s)

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