Browsing by Author "Lee, PT"

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High performance 1.27 mu m InGaAs : Sb-GaAsP quantum wells vertical cavity surface emitting laser
(2004)
Kuo, HC
;
Chang, YH
;
Lai, FI
;
Lee, PT
;
Wang, SC
High performance 1.27 mum InGaAs:Sb-GaAsP vertical cavity surface emitting lasers (VCSELs) are demonstrated with superior performance and temperature stability. The threshold current changes between 1.8 and 1.1 mA and the slope efficiency drops less than similar to30% when the temperature raised from room temperature to 70degreesC. High modulation bandwidth of 10.1 (8.8) GHz at 25degreesC (70degreesC) and bias current 6 mA are demonstrated.
Whispering gallery mode of modified octagonal quasiperiodic photonic crystal single-defect microcavity and its side-mode reduction
(2006-05-15)
Lee, PT
;
Lu, TW
;
Tsai, FM
;
Lu, TC
;
Kuo, HC
Single-mode lasing action is obtained from a modified octagonal quasiperiodic photonic crystal single-defect microcavity which supports a well-confined whispering gallery mode with ultralow threshold and high-quality factor. Side-mode reduction is achieved by inserting a central air-hole in the cavity region. (c) 2006 American Institute of Physics.