An Optical Waveguide with High Birefringence and Birefringence Dispersion for Optical Beamforming Network in Multibeam Array Antenna (Special Issue on Adaptive Array Antenna Techniques for Advanced Wireless Communications)

概要

論文の詳細を見る
In this paper, we report on our recent work in designing and developing an optical waveguide and optical integrated circuit for optical BFN in adaptive multibeam array antenna. We introduce a new integrated Ti:LiNbO_3 waveguide and prove that it is able to yield large birefringence and birefringence dispersion. We present a new technique using a microwave modulated optical wave to measure the birefringence in integrated Ti:LiNbO_3 optical wave guides. The measuring results show that the new waveguide has a birefringence of 0.08 and birefringence dispersion of 0.05μm^<-1> at optical wave length of 1.55μm. When the new Ti:LiNbO_3 is applied to form a integrated optical waveguide array in optical beam forming network, it is shown that microwave phase shifts within the range of [-180°,+180°] is achieved by tuning the optical wave length ±1Onm around 1.55μm.
社団法人電子情報通信学会の論文
2001-07-01