Silicone polymers for optical films and devices

Ann W. Norris; Jon DeGroot Jr.; Fumito Nishida; Udo Pernisz; Nobuo Kushibiki; Takuya Ogawa

doi:10.1117/12.452064

18 December 2002 Silicone polymers for optical films and devices

Ann W. Norris, Jon DeGroot Jr., Fumito Nishida, Udo Pernisz, Nobuo Kushibiki, Takuya Ogawa

Proceedings Volume 4798, Linear and Nonlinear Optics of Organic Materials II; (2002) https://doi.org/10.1117/12.452064
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

Silicones are among the most suitable materials for optical telecommunication devices due to their tolerance to high optical flux and their thermo-mechanical and environmental stability; they also have excellent processability. This work focuses on utilizing silicon-based branched resins and linear polymers for optical waveguides and switches where both refractive index and thermo-optic coefficient need to be controlled to the requirements of specific applications. Materials were synthesized with high optical transmission bands between 1.3 and 1.6 μm by varying the amount of aliphatic and aromatic C-H in the material. At the same time, the ratio of methyl to phenyl groups also controls the refractive index in the range of n_D = 1.4 ... 1.6 precisely enough that both core and cladding components (Δn < 0.5%) can be obtained. Films of 5 to 20 μm thickness prepared on silicon substrates by spin-coating from solution were evaluated by measuring refractive index, thermo-optic coefficient, optical loss, and film uniformity both before and after exposure to high temperature and humidity. These films can be patterned through a number of techniques to form the required features. The resinous materials show very low birefringence and excellent resistance to heat and moisture.

Citation Download Citation

Ann W. Norris, Jon DeGroot Jr., Fumito Nishida, Udo Pernisz, Nobuo Kushibiki, and Takuya Ogawa "Silicone polymers for optical films and devices", Proc. SPIE 4798, Linear and Nonlinear Optics of Organic Materials II, (18 December 2002); https://doi.org/10.1117/12.452064

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