isolation channel
2.Recently, it is due to the limitation of design on variable air volume air conditioner, the absence of effective vibration isolation system on the fixing of vantilation equipment and the maladjustment of air volume in the air channel, that the noise and vibration is in excess of the criterion, and much more economice dissension is solicited.
3.The input and output single mode waveguides are optimized according to the theory of large single mode rib waveguides by R A Soref. When the width of the single mode rib waveguide is 5μm and the optimum width and length of the SIE waveguide are 72μm and 6313 4μm respectively for 8 channel wave length devices,the wavelength isolation is 35dB,theoretical propagation loss is less than 0 18dB.
