Laser-induced damage threshold (LIDT) test station No.2 (for 1 Hz to 10 kHz)

Unit: Faculty of Physics

Keywords: Laser-induced damage threshold test, LIDT, Ophir, Spiricon, Hameg, Tektronix, characterization of optical coatings, measuring laser parameters

Responsible person: Dr. Andrius Melninkaitis, tel.+370 5 236 6067

Test station is suitable for characterization of optical coatings.

The LIDT station can be used at a laser pulse repetition rate from 1 Hz to 10 kHz.
Measurements can be performed for laser radiation of 760 – 840 nm, 380 - 420 nm wavelengths. Automated positioning of the sample in XY directions in the target plane (range of positioning ≥ 70 mm). An analog digital converter with selection and hold functions for the registration of the scattered and incident pulses is also installed. A computer with the necessary software is integrated.
An equipment set for measuring laser radiation temporal, spatial and energetic parameters is also used. It consists of universal Ophir power meters and thermopile-type power measurement heads, a Spiricon 190-1100 nm spectral range CCD camera, an HM2005 200 MHz bandwidth analog oscilloscope and a TDS3032C 300 MHz bandwidth digital oscilloscope, and photodiodes.