Title :
Autocorrelation of femtosecond pulses from 415-630 nm using a GaN laser diode
Author :
Loza-Alvarez, P. ; Sibbett, W. ; Rekl, D.T.
Author_Institution :
Sch. of Phys. & Astron., Univ. of St. Andrews, UK
Abstract :
Summary form only given. Using a 393 nm Nichia NLHV500 laser diode as a photodetector we present results demonstrating a strong two-photon response across a 200 nm range of visible wavelengths which enables sensitive measurement of intensity and interferometric second-order autocorrelations. The single-photon and two-photon response of the laser diode was found at several wavelengths. The modelocked sources were based on a 100 fs Ti:sapphire laser with a repetition rate of 85 MHz which synchronously pumped a periodically poled LiNbO/sub 3/ optical parametric oscillator (OPO).
Keywords :
III-V semiconductors; gallium compounds; high-speed optical techniques; laser transitions; laser variables measurement; optical correlation; optical harmonic generation; optical parametric oscillators; photodetectors; semiconductor lasers; 100 fs; 393 nm Nichia NLHV500 laser diode; 415 to 630 nm; GaN; GaN laser diode; LiNbO/sub 3/; LiNbO/sub 3/ optical parametric oscillator; Ti:sapphire laser; femtosecond pulse autocorrelation; intensity measurement; interferometric second-order autocorrelations; laser diode; modelocked sources; periodically poled; photodetector; repetition rate; sensitive measurement; single-photon response; strong two-photon response; synchronously pumped; two-photon response; visible wavelengths; Autocorrelation; Diode lasers; Gallium nitride; Laser excitation; Laser modes; Optical interferometry; Photodetectors; Pump lasers; Ultrafast optics; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics Europe, 2000. Conference Digest. 2000 Conference on
Conference_Location :
Nice
Print_ISBN :
0-7803-6319-1
DOI :
10.1109/CLEOE.2000.909923
