Translator Disclaimer
21 October 2003 A unique all-optic switch based on an innovatively designed liquid crystal waveguide
Author Affiliations +
A unique, all-optic switch based on an innovatively designed planar lightwave circuit (PLC) is presented in this paper. The switching function is achieved by using ultra large birefringence of nematic liquid crystals (NLC) filled at the trench of waveguides. The trench at the crossing forms a waveguide mirror or a matching medium when extraordinary and ordinary refractive indices of NLC are employed, respectively. The major advantages of our unique design are: (1) the limitation that refractive index of liquid crystal must be less than that of waveguide material itself is eliminated so that conventional NCL material such as E7 can be used; (2) it is a self aligned fabrication process that alleviates the tight tolerance of later tilt error; (3) the design is thermally stable. The successful fabrication of this unqiue switch could result in an enabling element for the next generation all-optic networks.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sung-Hyun Nam, Wei-Hung Su, Jesus Chavez, and Shizhuo Yin "A unique all-optic switch based on an innovatively designed liquid crystal waveguide", Proc. SPIE 5206, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IX, (21 October 2003);


Optical switching technologies and their applications
Proceedings of SPIE (May 15 2001)
Minimum-stage 4x4 electro-optic polymer switch
Proceedings of SPIE (April 17 1998)
8X8 Optical Waveguide Switch Using Liquid Crystal
Proceedings of SPIE (January 29 1985)
Laser written mode evolution couplers
Proceedings of SPIE (October 05 1999)

Back to Top