Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Nonlinear absorption and optical limiting of laser pulses in a liquid-cored fiber array

Not Accessible

Your library or personal account may give you access

Abstract

Recently observed nonlinear-propagation and optical-limiting effects of nanosecond and picosecond laser pulses through a fiber are analyzed with a model that accounts for various molecular photonic-absorption processes including linear, two-photon, intermediate, and excited-state absorptions. Explicit expressions for the laser-induced molecular-level density changes, the thermal–density effects following photoabsorption, and their effects on the laser propagation transmission are obtained for conditions corresponding to the experimental situations. These theoretical considerations are found to correlate very well with experimental results for the transmission of picosecond and nanosecond laser pulses through the nonlinear fiber. Our analyses show that in the picosecond regime, nonlinear photonic absorptions are efficient optical-limiting processes, whereas in the nanosecond regime, thermal–density effects are the dominant contributor. We also identify a particular nonlinear core liquid that gives very low optical-limiting thresholds and clamped transmission for picosecond as well as nanosecond laser pulses.

© 1998 Optical Society of America

Full Article  |  PDF Article
More Like This
Nonlinear optical liquid cored fiber array and liquid crystal film for ps-cw frequency agile laser optical limiting application

I. C. Khoo, M. V. Wood, B. D. Guenther, Min-Yi Shih, P. H. Chen, Zhaogen Chen, and Xumu Zhang
Opt. Express 2(12) 471-482 (1998)

Nonlinear-absorbing fiber array for large-dynamic-range optical limiting application against intense short laser pulses

Iam Choon Khoo, Andres Diaz, and Jianwu Ding
J. Opt. Soc. Am. B 21(6) 1234-1240 (2004)

Evidence for broadband optical limiting in a Pt:ethynyl compound

J. Staromlynska, T. J. McKay, J. A. Bolger, and J. R. Davy
J. Opt. Soc. Am. B 15(6) 1731-1736 (1998)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (15)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved