Intracavity power measurement by Rayleigh scattering
Lloyd W. Hillman, Jerzy Krasinski, John A. Yeazell, and C. R. Stroud, Jr.
Appl. Opt. 22, 3474 (1983).
Click here to download the .pdf version of the paper
hillman832.pdf (156 KB)
Accurate measurement of intracavity laser power is a necessity in the study
of intracavity nonlinear interactions, intracavity saturation spectroscopy,
and intracavity harmonic generation. A method for this measurement is
described which may offer major advantages over the usual methods. The
authors have constructed a simple apparatus to measure the Rayleigh
scattered power and thus determine the intracavity power in a high-Q laser
cavity. The laser beam, whose power is to be measured, passes through a
series of baffles to eliminate all extraneous scattered light. In the
central chamber the scattered light is measured using a photomultiplier.
The apparatus has some highly desirable properties. It works with both
narrowband and broadband beams; it operates over a large range of powers
including high powers which the breakdown of the air is the limiting
factor. Its primary advantage is that it makes the measurement without
introducing additional losses.
Web page maintained by
Hideomi Nihira ( firstname.lastname@example.org ).
Last modified 13 September 2006