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.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.