Title :
Visible wavelength autocorrelation based on the two-photon absorption in a SiC photodiode and a GaInN light emitting diode
Author :
Young-Chul Noh ; Jai-Hyung Lee ; Joon-Sung Chang ; Yong-Sik Lim ; Jong-Dae Park
Author_Institution :
Dept. of Phys., Seoul Nat. Univ., South Korea
fDate :
Aug. 30 1999-Sept. 3 1999
Abstract :
In order to record the autocorrelation signal the SHG signal has usually been measured by a photomultiplier tube (PMT). However, the method requires a precise alignment to achieve critical phase matching in a nonlinear crystal. We will demonstrate the real-time autocorrelation measurement by using the GaInN light emitting diode (LED) and the extended utility of the SiC photodiode in visible wavelength range. We measured the power dependence of the average photocurrent in the SiC photodiode.
Keywords :
light emitting diodes; optical correlation; optical phase matching; photodiodes; photomultipliers; two-photon processes; GaInN; GaInN light emitting diode; LED; SHG signal; SiC; SiC photodiode; autocorrelation signal; average photocurrent; critical phase matching; nonlinear crystal; photomultiplier tube; power dependence; precise alignment; real-time autocorrelation measurement; two-photon absorption; visible wavelength autocorrelation; visible wavelength range; Autocorrelation; Frequency conversion; Gain measurement; Light emitting diodes; Photoconductivity; Photodiodes; Photomultipliers; Power measurement; Silicon carbide; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on
Conference_Location :
Seoul, South Korea
Print_ISBN :
0-7803-5661-6
DOI :
10.1109/CLEOPR.1999.811507
