OPTICAL MEASUREMENT OF EXCIMER-LASER CURRENT PULSES

Authors
HODGSON E BOARDMAN AD HUA Y WILSON A
Citation
E. Hodgson et al., OPTICAL MEASUREMENT OF EXCIMER-LASER CURRENT PULSES, J. mod. opt., 41(6), 1994, pp. 1193-1201
Citations number
10
Categorie Soggetti
Optics
Journal title
J. mod. opt. → ACNP
ISSN journal
09500340
Volume
41
Issue
6
Year of publication
1994
Pages
1193 - 1201
Database
ISI
SICI code
0950-0340(1994)41:6<1193:OMOECP>2.0.ZU;2-E
Abstract
A high-bandwidth optical fibre current sensor has been developed at Sa lford to monitor the waveform of the driving current pulse feeding int o a discharge-pumped excimer laser. The sensor is a conventional intri nsic Faraday effect device but overcomes the normal bandwidth-sensitiv ity limits because the very large electrical current pulse used to dri ve the excimer laser allows detectable polarization rotation over a 60 cm length of fibre. The performance of the intrinsic sensor is compar ed with that of a current-viewing resistor, and of a Be12GeO20 crystal sensor.