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Tunable X-Band Optoelectronic Oscillators Based on External-Cavity Semiconductor Lasers

Publié le 13 juin 2017
Tunable X-Band Optoelectronic Oscillators Based on External-Cavity Semiconductor Lasers
Auteurs
Chang C.-Y., Wishon M.J., Choi D., Dong J., Merghem K., Ramdane A., Lelarge F., Martinez A., Locquet A., Citrin D.S.
Year2017-0151
Source-TitleIEEE Journal of Quantum Electronics
Affiliations
School of Physics, Georgia Institute of Technology, Atlanta, GA, United States, Georgia Tech-CNRS UMI-2958, Georgia Tech Lorraine, Metz, France, School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, United States, Georgia TechCNRS UMI-2958, Georgia Tech Lorraine, Metz, France, CNRS, Laboratory for Photonics and Nanostructures, Marcoussis, France, III-V Laboratory, A Joint Laboratory of Alcatel Lucent Bell Labs and Thales Research and Technology, CEA-LETI, Route de Nozay, Marcoussis, France
Abstract
Laser diodes with optical feedback can exhibit periodic intensity oscillations at or near the relaxation-oscillation frequency. We demonstrate optoelectronic oscillators based on external-cavity semiconductor lasers in a periodic dynamical regime tunable over the entire $X$ -band. Moreover, unlike standard optoelectronic oscillators, we need not employ the time-dependent optical intensity incident on a photodiode to generate the microwave signal, but rather have the option of generating the electrical microwave signal directly as a voltage V(t) at the laser-diode injection terminals under constant current operation, no photodiode need be involved, thus circumventing optical-to-electrical conversion. We achieve a timing jitter of 10 ps and a quality factor of 2× 105 across the entire X -band, that ranges from 6.79 to 11.48 GHz. Tuning is achieved by varying the injection current J. © 1965-2012 IEEE.
Author-Keywords
microwave photonics, microwave source, nonlinear optics, Optoelectronic oscillator, semiconductor lasers dynamics
Index-Keywords
Microwaves, Nonlinear optics, Optoelectronic devices, Photodiodes, Semiconductor diodes, Semiconductor junctions, Semiconductor lasers, Timing jitter, Constant current operations, External cavity semiconductor lasers, Microwave Photonics, Microwave sources, Optical intensities, Optical-to-electrical conversion, Opto-electronic oscillator, Relaxation oscillation frequencies, Microwave oscillators
ISSN189197
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