Electrical-optical signal mixing and multiplication (2–>22 GHz) with a tunnel junction transistor laser

H. W. Then, C. H. Wu, G. Walter, M. Feng, and N. Holonyak, Jr.
A tunnel junction is incorporated at the collector of a transistor laser to provide an effective method for voltage-controlled modulation via internal (intracavity) FranzKeldysh photon-assisted tunneling. Electrical-optical signal mixing above threshold is made possible by the nonlinear coupling of ... [Appl. Phys. Lett. 94, 101114 (2009)] published Fri Mar 13, 2009.
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