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http://dx.doi.org/10.15207/JKCS.2017.8.5.161

Characteristics of 32 × 32 Photonic Quantum Ring Laser Array for Convergence Display Technology  

Lee, Jongpil (Department of Renewable Energy, Jungwon University)
Kim, Moojin (Department of Renewable Energy, Jungwon University)
Publication Information
Journal of the Korea Convergence Society / v.8, no.5, 2017 , pp. 161-167 More about this Journal
Abstract
We have fabricated and characterized $32{\times}32$ photonic quantum ring (PQR) laser arrays uniformly operable with $0.98{\mu}A$ per ring at room temperature. The typical threshold current, threshold current density, and threshold voltage are 20 mA, $0.068A/cm^2$, and 1.38 V. The top surface emitting PQR array contains GaAs multiquantum well active regions and exhibits uniform characteristics for a chip of $1.65{\times}1.65mm^2$. The peak power wavelength is $858.8{\pm}0.35nm$, the relative intensity is $0.3{\pm}0.2$, and the linewidth is $0.2{\pm}0.07nm$. We also report the wavelength division multiplexing system experiment using angle-dependent blue shift characteristics of this laser array. This photonic quantum ring laser has angle-dependent multiple-wavelength radial emission characteristics over about 10 nm tuning range generated from array devices. The array exhibits a free space detection as far as 6 m with a function of the distance.
Keywords
Photonic quantum ring laser array; Vertical cavity surface emitting laser; Metal oxide chemical vapor deposition; GaAs quantum well; 3 dimensional whispering gallery mode; Laser and display convergence technology;
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Times Cited By KSCI : 8  (Citation Analysis)
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