22 April 2016 WDM laser transmitters for mobile free-space laser communications
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Publisher’s Note: This paper, originally published on 4/1/2016, was replaced with a corrected/revised version on 4/14/2016. If you downloaded the original PDF but are unable to access the revision, please contact SPIE Digital Library Customer Service for assistance.

We describe the performance of versatile high-performance multi-rate WDM laser transmitters using next-generation compact high-extinction-ratio power-efficient (CHERPe) transmitter designs. These leverage periodic time-frequency windowing of directly modulated laser signals to efficiently generate nearly ideal WDM waveforms with only mW-class drive power. facilitating WDM-channelization and providing straightforward access to many THz of available optical spectrum with low-bandwidth electronics. Furthermore, this approach can support scalable multi-rate operation with good power- and photon-efficiency and enable new architectural options. This approach is attractive for numerous applications and systems ranging from small airborne or CubeSAT-sized communication payloads to larger interplanetary lasercom platforms.
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D. O. Caplan, D. O. Caplan, R. T. Schulein, R. T. Schulein, J. J. Carney, J. J. Carney, M. L. Stevens, M. L. Stevens, S. J. Spector, S. J. Spector, "WDM laser transmitters for mobile free-space laser communications", Proc. SPIE 9739, Free-Space Laser Communication and Atmospheric Propagation XXVIII, 97390W (22 April 2016); doi: 10.1117/12.2218297; https://doi.org/10.1117/12.2218297
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