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Proceedings Paper

Low-index electro-optic sol-gel materials
Author(s): Danliang Jin; Diyun Huang; Stephen Condon; HannWen Guan; Shuxin Cong; Anna Barklund; Raluca Dinu
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Paper Abstract

Polymeric electro-optic materials have made significant progress in increasing electro-optic co-efficient, enhancing temporal stability, and lower optical loss at operating wavelength. To fully realize the electro-optic activity in a waveguide device, appropriate cladding materials need to be designed carefully and a compatible fabrication process should be developed accordingly, which has been challenging and tedious. It would be desirable if glass-based optical fiber or silica substrate can be utilized as parts of device materials. The challenge is to match the relatively lower refractive index of fiber and silica substrates. Thus, a low refractive (~1.44) of electro-optic material was designed. The efforts include the synthesis and characterization of the low index host materials via sol-gel process and silanization of a chromophore with large hyperpolarizability. In this study, an electro-optic sol-gel material with a refractive index ~1.44 at the wavelength of 1.55 μm was developed. It was highly processible and compatible with glass-based fiber or silica-based materials. An interdigitated electrode configuration is designed and a substrate with such a configuration was fabricated. Combined with the in-situ SHG monitoring setup, poling process can be readily monitored and optimized. The r33 obtained at the wavelength of 1.3 μm is 19 pm/V. Thus, it becomes possible to design optical devices using glass-based fiber or silica substrate as part of the device structure, which could simplify the material and process development.

Paper Details

Date Published: 2 December 2005
PDF: 12 pages
Proc. SPIE 6020, Optoelectronic Materials and Devices for Optical Communications, 602006 (2 December 2005); doi: 10.1117/12.635268
Show Author Affiliations
Danliang Jin, Lumera Corp. (United States)
Diyun Huang, Lumera Corp. (United States)
Stephen Condon, Lumera Corp. (United States)
HannWen Guan, Lumera Corp. (United States)
Shuxin Cong, Lumera Corp. (United States)
Anna Barklund, Lumera Corp. (United States)
Raluca Dinu, Lumera Corp. (United States)


Published in SPIE Proceedings Vol. 6020:
Optoelectronic Materials and Devices for Optical Communications
Shinji Tsuji; Jens Buus; Yi Luo, Editor(s)

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