USE OF A PHOTOACOUSTIC CELL AS A SENSITIVE LASER POWER-METER

被引：5

作者：

SATHEESHKUMAR, MK

VALLABHAN, CPG

机构：

[1] Univ of Cochin, Dep of Physics,, Cochin, India, Univ of Cochin, Dep of Physics, Cochin, India

来源：

JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS | 1985年 / 18卷 / 05期

关键词：

ACOUSTOOPTICAL DEVICES;

D O I：

10.1088/0022-3735/18/5/016

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A nonresonant photoacoustic cell having carbon black as absorbing material is found to work as a sensitive laser power meter with flat wavelength response. Calibration of the instrument made on the basis of Rosencwaig-Gersho theory is fairly accurate below the saturation region which can be raised by increasing the chopping rate of input laser beam. This device when used along with a commercial lock-in amplifier has a measuring range from 5 mu W to 10 W and is much more sensitive compared with similar devices employed to measure laser power where a gas medium is used as the absorber.

引用

页码：434 / 436

页数：3

共 9 条

[1]

ADAMS MJ, 1982, PROG ANAL ATOM SPECT, V5, P153

[2] OPTO-ACOUSTIC POWER MONITORS FOR LASER-RADIATION [J].