Title :
Analysis of abrupt waveguide bend with low-index microprism
Author :
Lin, Han-Bin ; Lin, Yih-Bin ; Wang, Way-Seen
Author_Institution :
Dept. of Electr. Eng., China Inst. of Technol. & Commerce, Taipei, Taiwan
fDate :
12/1/1998 12:00:00 AM
Abstract :
A low-loss large-angle waveguide bend structure utilizing a low-index microprism is proposed. Using the principle of phase front compensation, a simple and efficient rule for the low-index prism is derived. Field distortion due to the prism is discussed and an optimized prism design is also proposed. Simulated normalized transmission efficiency of the proposed waveguide bend is as large as 99.1% for a bend angle of 10°. Moreover, waveguide bends with high- and low-index prisms are compared for reference
Keywords :
bending; integrated optics; light transmission; optical design techniques; optical losses; optical prisms; optical waveguide theory; refractive index; waveguide discontinuities; abrupt waveguide bend; bend angle; field distortion; high-index prisms; low-index microprism; low-loss large-angle waveguide bend structure; optimized prism design; phase front compensation; simulated normalized transmission efficiency; Integrated optics; Optical attenuators; Optical devices; Optical distortion; Optical losses; Optical refraction; Optical variables control; Optical waveguide theory; Optical waveguides; Power transmission;
Journal_Title :
Quantum Electronics, IEEE Journal of
