Polarization-dependent characteristics of a racetrack waveguide resonator fabricated by ion exchange in K9 glass  

作　　者：韩秀友 刘峰 庞拂飞 初凤红 蔡海文 瞿荣辉 方祖捷 

机构地区：[1]Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences [2]Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences,

出　　处：《Chinese Optics Letters》2006年第7期393-396,共4页中国光学快报（英文版）

基　　金：This work was supported by the Optical Science and Technology Foundation of Shanghai Technology Committee under Grant No. 022261009.

摘　　要：A racetrack waveguide resonator filter was fabricated by ion exchange technology in K9 optical glass. The filter responses of the waveguide resonator were measured with two polarized input lightwaves. The polarization-dependent characteristics of the waveguide resonator were analyzed, and the results of effective indices of nTE=1.5721 and nTM = 1.5548, coupling ratios of rTE = 0.731 and rTM = 0.761, and losses of αTE = 4.35 dB/cm and αTM = 6.05 dB/cm were obtained for transverse electric （TE） and transverse magnetic （TM） modes, respectively. The causes of large loss and effective index differences between TE and TM modes were discussed.A racetrack waveguide resonator filter was fabricated by ion exchange technology in K9 optical glass. The filter responses of the waveguide resonator were measured with two polarized input lightwaves. The polarization-dependent characteristics of the waveguide resonator were analyzed, and the results of effective indices of nTE=1.5721 and nTM = 1.5548, coupling ratios of rTE = 0.731 and rTM = 0.761, and losses of αTE = 4.35 dB/cm and αTM = 6.05 dB/cm were obtained for transverse electric （TE） and transverse magnetic （TM） modes, respectively. The causes of large loss and effective index differences between TE and TM modes were discussed.

关 键 词：COUPLINGS Ion exchange Optical filters Optical glass POLARIZATION WAVEGUIDES 

分 类 号：TN629.1[电子电信—电路与系统]