A novel technique for measuring the pulsewidth of nanosecond laser pulses

Author

Tam, Siu-Chung ; Neo, Wah-Peng ; Chua, Hock-Chuan ; Ho, Anthony T S ; Lee, Sing

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore

Volume

47

Issue

4

fYear

1998

fDate

8/1/1998 12:00:00 AM

Firstpage

997

Lastpage

1000

Abstract

This paper presents a simple, low-cost, and novel technique for measuring the temporal pulse shape of a nanosecond laser pulse accurately and consistently. The measurement configuration consists of a focusing lens, a tapered rod, and a digital noise filter. Using this setup, the pulsewidth of a nitrogen laser has been determined experimentally. Compared with an unaided measurement configuration, the new setup reduces the maximum deviation from 24.5% to 6.2% and the standard deviation from 7.6% to 1.4%, respectively

Keywords

gas lasers; high-speed optical techniques; laser variables measurement; nitrogen; optical focusing; pulse measurement; N₂; digital noise filter; focusing lens; laser stability; low-cost technique; nanosecond laser pulses; partial homogenization; pulsewidth measurement technique; tapered rod; temporal pulse shape; Digital filters; Laser noise; Lenses; Noise measurement; Noise shaping; Optical pulse shaping; Optical pulses; Pulse measurements; Shape measurement; Space vector pulse width modulation;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.744657

Filename

744657