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Whispering Gallery Modes of Quasi-Periodic Photonic Crystal Lasers

Whispering Gallery Modes of Quasi-Periodic Photonic Crystal Lasers. Po-Tsung Lee 李柏璁 Department of Photonics & Institute of Electro-Optical Engineering, National Chiao Tung University, Taiwan. Modified Octagonal (8-fold) Quasi-Photonic Crystal (OQPC) Single-Defect Micro-Cavity. OQPC Lattice.

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Whispering Gallery Modes of Quasi-Periodic Photonic Crystal Lasers

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  1. Whispering Gallery Modes of Quasi-Periodic Photonic Crystal Lasers Po-Tsung Lee 李柏璁 Department of Photonics & Institute of Electro-Optical Engineering, National Chiao Tung University, Taiwan

  2. Modified Octagonal (8-fold) Quasi-Photonic Crystal (OQPC) Single-Defect Micro-Cavity OQPC Lattice

  3. WGM Lasing & Threshold Dependence on Lattice Periods • Threshold – 0.35mW at 1499nm, single-mode lasing • Side-Mode Suppression Ratio (SMSR) – 25dB • Estimated Quality Factor – 7000 Advantages • Very condensed device size (3.5m X 3.5m), which is very potential in photonic integrated circuits

  4. Dodecagonal (12-fold) Quasi-Photonic Crystal (DQPC) D2 Micro-Cavity WGM Lasing Action and Comparison with Photonic Crystal Laser • Lasing Action：Single-mode lasing at 1574nm with 0.15nm FWHM • SMSR：> 20dB • Threshold：0.15mW (DQPC D2) < 0.6mW (PC D2)

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