一种新型光波导及其在光衰耗器中的应用

A New Kind of Optical Waveguide and Its Application in Optical Attenuator

本文介绍一种能用于可调谐光衰耗器的新型光波导 ,其包层为金属汞 ,包层长度灵活可变。理论分析和实验均表明 ,这种光波导的光功率衰耗与包层长度成正比 ,在 1.3μm光波长 ,当芯径为 40 0～ 6 2 μm时 ,对应光功率的衰减为 0 .0 4～ 0 .16 d B/ mm,以此光波导为基础的可调谐光衰耗器具有结构简单、性能优越等特点 ,其测量精度可达 0 .0 3d

WT5”BZ]:This paper describes a new kind of optical waveguide,which can be used in optical adjustable attenuator.Its cladding is Hg,and the cladding length can be changed agility.The theory analysis and experiments show that the optical power loss of the waveguide has direct ratio with the cladding length.At 1.2 μm wavelength,the waveguides loss per length is about 0.04～0.16 dB/mm,when its diameter is 400～62 μm.Its resolution can be up to 0.03 dB. [WT5”HZ]