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19 October 2001 Recent development of crosslinked NLO polymers for large bandwidth electro-optical modulations
Sam-Shajing Sun; Shahin Maaref; Enver Alam; Yiqing Wang; Zhen Fan; Messaoud Bahoura; Patrick T. Higgins; Carl E. Bonner Jr.
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Proceedings Volume 4580, Optoelectronics, Materials, and Devices for Communications; (2001) https://doi.org/10.1117/12.444977
Event: Asia-Pacific Optical and Wireless Communications Conference and Exhibit, 2001, Beijing, China
Abstract
A future polymer based electro-optical (EO) modulator has several advantages over a current commercial Lithium Niobate EO modulator, a key device that encodes electronic signals into optical signals. These advantages include larger bandwidth (over 100 GHz), lower drive voltage (less then 1 volt), more cost effective, etc. However, one major challenge for EO polymer development is materials stability, including short term and long term SHG (NLO chromophore orientation) stability. Since the modulator fabrication and packaging processes typically require heating temperatures of 200-250oC for up to 10 minutes, yet the SHG thermal stability of most NLO polymers developed so far only reach about 150oC. In order to overcome this challenge, either modulator processing temperatures are reduced, or SHG thermal stability of EO polymers be increased. Polymer crosslinking technique is one of the most versatile and effective methods for fabricating and stabilizing polymer nano structures at high temperatures. Among various NLO polymer crosslinking schemes developed so far, fumaryl chloride (FC) and maleic anhydride (MA) derived crosslinked polyester system seems to be a versatile and convenient scheme. This scheme also looks attractive for low loss applications at 1550 nm. FC/MA crosslinking systems also offer visible light photolithographic fabrication advantage during waveguide fabrication.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Sam-Shajing Sun, Shahin Maaref, Enver Alam, Yiqing Wang, Zhen Fan, Messaoud Bahoura, Patrick T. Higgins, and Carl E. Bonner Jr. "Recent development of crosslinked NLO polymers for large bandwidth electro-optical modulations", Proc. SPIE 4580, Optoelectronics, Materials, and Devices for Communications, (19 October 2001); https://doi.org/10.1117/12.444977
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