When awg regarded as space unchanged linear system , an analytical solution of out - waveguide field is obtained by using the impulse response function . the crosstalk transformation on account of apertometer and waveguide spacing is also obtained by numerical calculation 本文還將awg視為空間不變線性系統(tǒng),使用點(diǎn)擴(kuò)展函數(shù)的方法,求出awg系統(tǒng)輸出分布的解析式,通過(guò)數(shù)值計(jì)算得到串?dāng)_與數(shù)值孔徑及其波導(dǎo)間距的關(guān)系。