• Title/Summary/Keyword: 광양자테

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Characteristics of 32 × 32 Photonic Quantum Ring Laser Array for Convergence Display Technology (디스플레이 융합 기술 개발을 위한 32 × 32 광양자테 레이저 어레이의 특성)

  • Lee, Jongpil;Kim, Moojin
    • Journal of the Korea Convergence Society
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    • v.8 no.5
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    • pp.161-167
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    • 2017

  • 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.

  • https://doi.org/10.15207/JKCS.2017.8.5.161 인용 PDF KSCI

Lightwave ordering and applications of photonic quantum ring lasers (광양자테 레이저의 광파 질서와 응용)

  • 권오대;안정착;곽규섭;박병훈;박동훈;김준연
    • Proceedings of the IEEK Conference
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    • 1999.06a
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    • pp.309-314
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    • 1999

  • We report dimension-reduced and photon-induced quantum rings naturally formed in a vertical-cavity-like active microdisk plane due to Rayleigh＇s band of whispering gallery modes. The √T- dependent redshift, microampere-range threshold currents, λ/2 lightwave ordering, and chaotic properties are also discussed.

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Linewidth characterics of the PQR Lasers (광양자테 레이저의 선폭 특성)

  • 김종삼;김준연;반노익;임권섭;류유신;배중우;권오대
    • Proceedings of the Optical Society of Korea Conference
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    • 2001.08a
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    • pp.256-257
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    • 2001

  • We measured the linewidth (FWHM) changes of the PQR laser against the diameter of the devices and the injection currents. We report the linewidth narrowing with increasing the PQR currents. A rough estimate of the line width behavior shows an inverse proportionality to the cavity length. The spectrum of $\frac{3}{4}$ circle cavity PQR laser is reported for the first time as well. The spectrum looks slightly different from that of the full circle device due to the structural distortion.

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