Polymer-Stabilized Blue Phase and Its Application to a 1.5 µm Band Wavelength Selective Filter

Crystals

Seiji Fukushima¹  Kakeru Tokunaga¹  Takuya Morishita²  Yasushi Okumura²  Hiroki Higuchi²  Hirotsugu Kikuchi²  Hidehisa Tazawa³ 

[1] Graduate School of Science and Engineering, Kagoshima University, Korimoto 1, Kagoshima-shi, Kagoshima 890-0065, Japan;Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen Kasuga-shi, Fukuoka 816-8580, Japan;Sumitomo Electric Industries Ltd., 1 Tayacho, Sakae-ku, Yokohama-shi 244-8588, Japan;

关键词: liquid crystal;    variable wavelength filter;    blue phase;    stabilized polymer;   

DOI  :  10.3390/cryst11091017

来源: DOAJ

【 摘 要 】

The use of polymer-stabilized blue phase (PSBP) including a tolane-type liquid crystal was investigated to develop a voltage-controlled wavelength selective filter for wavelength-division-multiplexing optical fiber network. It was found that the tolane-type liquid crystal introduction can increase both a blue-phase temperature range and a Kerr coefficient. A Fabry–Perot etalon filled with PSBP functioned as a wavelength selective filter, as expected. The tuning wavelength range was 62 nm although peak transmission was not as high as expected. Numerical analysis suggested that light absorption in transparent electrodes may cause the issue. Minor change to the etalon structure will result in improved performance.

【 授权许可】

Unknown