| 摘要 |
PROBLEM TO BE SOLVED: To provide a polymer optical waveguide integrally having low light loss with <=0.7 dB/cm amount of loss (1), >=300 deg.C heat resistance (2), high optical isotropy with <=0.01 birefringence (3) and excellent workability brought about by high chemical resistance (4). SOLUTION: The polymer optical waveguide of a single mode or of a multi mode is characterized by using a fluorine containing polyimide having a formula (1) in the principal chain skeleton and having a cross-linking group in a part of or all of its molecular terminals expressed by a formula (2), as an optical core and/or an optical cladding. |
