Title

Comparative Study Of Nonlinear-Optical Polymers For Guided-Wave Second-Harmonic Generation At Telecommunication Wavelengths

Abstract

We report on the linear and nonlinear-optical properties of 4-dimethylamino-4′-nitrostilbene (DANS), 4-diethylamino-1-nitrobenzyl (DANE), and 4-[N-ethyl-N-(2-hydroxyethyl)]amino-4′-nitroazobenzene) (Disperse Red 1;DR1) side chain polymers whose second-harmonic generation at the telecommunication wavelength of 1.55 μm was investigated. Measured ultraviolet-visible-near-infrared spectra were analyzed with an inhomogeneously broadened line-shape model, in particular, in the long-wavelength tail of the electronic transitions, which determines the absorption loss at the second-harmonic wavelength. The nonlinear-optical coefficients were measured at different poling temperatures and poling fields by the Maker fringe technique. On the basis of the measured material parameters we calculated the normalized conversion efficiencies for guided-wave second-harmonic generation at 1.55 μm. The DR1 polymer exhibited the best nonlinearity-absorption trade-off, with a calculated normalized conversion efficiency of several hundred percent per watt, whereas the figures.of merit for DANS and DANE are lower and comparable with each other. © 2000 Optical Society of America.

Publication Date

1-1-2000

Publication Title

Journal of the Optical Society of America B: Optical Physics

Volume

17

Issue

9

Number of Pages

1554-1564

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/JOSAB.17.001554

Socpus ID

0141748482 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0141748482

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