Title

High-dynamic-range cascaded-focus optical limiter

Authors

Authors

F. E. Hernandez; S. Yang; E. W. Van Stryland;D. J. Hagan

Abbreviated Journal Title

Opt. Lett.

Keywords

ABSORPTION; BEAM; Optics

Abstract

We report experimental results of using an f/5, cascaded-focus optical geometry for a high-dynamic-range optical limiter. The device consists of a a-cm-thick CS2 cell at the first focus and a reverse saturable-absorber dye in a thin cell (0.1 mm) at the second focus. The strong self-focusing in the CS2 that is due to the ac Kerr effect and electrostriction keeps the energy at the second cell below its damage threshold. Using lead phthalocyanine in chloroform as the reverse saturable-absorption material, we clamped the maximum output energy below 1 mu J for input energies up to 14.5 mJ without damage. We used a frequency-doubled, Q-switched 5-ns (FWHM) Nd:YAG laser operating at a 10-Hz repetition rate. of the device is at least 7500. (C) 2000 Optical Society of America OCIS codes: 260.5950, 190.0190.

Journal Title

Optics Letters

Volume

25

Issue/Number

16

Publication Date

1-1-2000

Document Type

Article

Language

English

First Page

1180

Last Page

1182

WOS Identifier

WOS:000088727400016

ISSN

0146-9592

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