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

Volume

2

fYear

1999

fDate

Aug. 30 1999-Sept. 3 1999

Firstpage

435

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CLEOPR.1999.811507

Filename

811507