TY - JOUR
T1 - Push-pull modulation of a composite-resonator vertical-cavity laser
AU - Chen, Chen
AU - Johnson, Klein L.
AU - Hibbs-Brenner, Mary
AU - Choquette, Kent D.
N1 - Funding Information:
Manuscript received June 03, 2009; revised July 17, 2009. Current version published February 15, 2010. A portion of this work was supported by the Defense Advanced Research Projects Agency under Contract W31P4Q-07-C-0284. C. Chen and K. D. Choquette are with the Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA (e-mail: [email protected]; [email protected]). K. L. Johnson and M. Hibbs-Brenner are with Vixar, Plymouth, MN 55447 USA (e-mail: [email protected]; [email protected]). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/JQE.2009.2031119
PY - 2010
Y1 - 2010
N2 - The two coupled optical cavities within a vertical-cavity surface-emitting laser have the unique ability to modulate the spatial distribution of the longitudinal optical mode, without changing the total photon density in the laser cavities, by simultaneously directly modulating the two optical cavities exactly out-of-phase. A rate-equation analysis predicts that this condition, which we term push-pull modulation, exhibits a superior modulation response than that of conventional direct modulation. The push-pull modulation can enable high-speed operation with low power consumption, as a large modulation bandwidth can be achieved independent of the total photon density and/or the injection dc current. Experimental evidence of spatially changing the longitudinal mode is presented, and push-pull modulation at 2.5 Gb/s is demonstrated for the first time.
AB - The two coupled optical cavities within a vertical-cavity surface-emitting laser have the unique ability to modulate the spatial distribution of the longitudinal optical mode, without changing the total photon density in the laser cavities, by simultaneously directly modulating the two optical cavities exactly out-of-phase. A rate-equation analysis predicts that this condition, which we term push-pull modulation, exhibits a superior modulation response than that of conventional direct modulation. The push-pull modulation can enable high-speed operation with low power consumption, as a large modulation bandwidth can be achieved independent of the total photon density and/or the injection dc current. Experimental evidence of spatially changing the longitudinal mode is presented, and push-pull modulation at 2.5 Gb/s is demonstrated for the first time.
KW - Coupled cavity
KW - Semiconductor lasers
KW - Vertical-cavity surface-emitting lasers (VCSEL)
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U2 - 10.1109/JQE.2009.2031119
DO - 10.1109/JQE.2009.2031119
M3 - Article
AN - SCOPUS:77249098344
SN - 0018-9197
VL - 46
SP - 438
EP - 446
JO - IEEE Journal of Quantum Electronics
JF - IEEE Journal of Quantum Electronics
IS - 4
M1 - 5412131
ER -