Highly efficient EO polymers for low V π modulators

Autor: Jingdong Luo, Stephen Condon, Hui Chen, Danliang Jin, Anna Barklund, Raluca Dinu, Zhengwei Shi, Eric L. Miller, Baoquan Chen, Guomin Yu, Su Huang, Diyun Huang, Tae-Dong Kim, Don Tolstedt, Alex K.-Y. Jen
Rok vydání: 2008
Předmět:
Zdroj: Linear and Nonlinear Optics of Organic Materials VIII.
ISSN: 0277-786X
Popis: Poly(methyl methacrylate- co -9-anthrylmethyl methacrylate) (PMMA-AMA) LP-136 with various AMA contents was prepared. The polymer was modified via Diels-Alder (D-A) type "click chemistry". In one approach, the side-chain was grafted stepwise with maleimide-containing chromophore AJL-04 followed with N-phenylmaleimide (PI) to form LP-160. LP-160 was doped with 30 wt % of chromophore AJLS-102 to give electro-optic (EO) core polymer AJ-415. In the other approach, all the pending AMA groups were modified with PI in one step to yield LP-165. Doping 33.7 wt % AJLS-102 in LP-165 gives another core polymer AJ-416. The EO and material properties of both polymers were systematically studied. Via careful selection of bottom and top cladding materials with proper optical and electrical properties, Mach-Zehnder type modulators were fabricated based on both core materials. At the operational wavelength of 1550 nm, modulator with AJ-415 core has half-wave driving voltage (V π ) of 0.95 V and insertion loss of 19.1 dB, while the best results from modulators with AJ-416 core are 0.75 V of V π and 17.1 dB of insertion loss. AJ-416 also has the advantage over AJ-415 for building EO modulator with better processibility and long-term stability.
Databáze: OpenAIRE