Title :
Low loss, heat-resistant optical waveguides using new fluorinated polyimides
Author :
Matsuura, T. ; Ando, Shin ; Sasaki, Seishi ; Yamamoto, Fumihiko
Author_Institution :
NTT Interdisciplinary Res. Labs., Tokyo, Japan
Abstract :
Two types of polymer ridge optical waveguide are prepared using new fluorinated polyimides with excellent transparency and refractive index controllability. One has a polyimide core with a refractive index n of 1.573 and an SiO2 undercladding layer. The other has a polyimide core (n=1.521) and a polyimide undercladding layer (n=1.520). These waveguides exhibit a low loss of 0.3 dB/cm at 1.3 mu m. In addition, they have high thermal stability because of high temperature curing (above 350 degrees C).
Keywords :
optical waveguides; polymers; 1.3 micron; 350 C; SiO 2 undercladding layer; fluorinated polyimides; heat-resistant optical waveguides; high temperature curing; low-loss optical waveguides; optical interconnect; polyimide core; polyimide undercladding layer; polymer ridge optical waveguide; refractive index; refractive index controllability; single-mode waveguides; thermal stability; transparency;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930184
