A tunnel junction is incorporated at the collector of a transistor laser to provide an effective method for voltage-controlled modulation via internal (intracavity) Franz–Keldysh photon-assisted tunneling. Electrical-optical signal mixing above threshold is made possible by the nonlinear coupling of the optical field to the base emitter-to-collector carrier transport and the base-to-collector electron tunneling. Microwave signal mixing with a common-emitter tunnel junction transistor laser is demonstrated with a pair of input sinusoidal signals: one at the base using current modulation and the other at the collector using voltage modulation, producing an optical output with harmonics of up to , despite being limited by amplifier bandwidth.
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9 March 2009
Research Article|
March 13 2009
Electrical-optical signal mixing and multiplication with a tunnel junction transistor laser
H. W. Then;
H. W. Then
a)
Department of Electrical and Computer Engineering,
University of Illinois at Urbana-Champaign
, 1406 W. Green St., Urbana, Illinois 61801, USA
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C. H. Wu;
C. H. Wu
Department of Electrical and Computer Engineering,
University of Illinois at Urbana-Champaign
, 1406 W. Green St., Urbana, Illinois 61801, USA
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G. Walter;
G. Walter
Department of Electrical and Computer Engineering,
University of Illinois at Urbana-Champaign
, 1406 W. Green St., Urbana, Illinois 61801, USA
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M. Feng;
M. Feng
b)
Department of Electrical and Computer Engineering,
University of Illinois at Urbana-Champaign
, 1406 W. Green St., Urbana, Illinois 61801, USA
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N. Holonyak, Jr.
N. Holonyak, Jr.
Department of Electrical and Computer Engineering,
University of Illinois at Urbana-Champaign
, 1406 W. Green St., Urbana, Illinois 61801, USA
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a)
Electronic mail: hanthen2@uiuc.edu.
b)
Electronic mail: mfeng@uiuc.edu.
Appl. Phys. Lett. 94, 101114 (2009)
Article history
Received:
January 16 2009
Accepted:
February 26 2009
Citation
H. W. Then, C. H. Wu, G. Walter, M. Feng, N. Holonyak; Electrical-optical signal mixing and multiplication with a tunnel junction transistor laser. Appl. Phys. Lett. 9 March 2009; 94 (10): 101114. https://doi.org/10.1063/1.3100294
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