【摘要】 提出并采用统计优化的设计方法解决含氟聚酰亚胺波导波长交叉分离耦合器的偏振态变动的影响.在实测了含氟聚酰亚胺的色散和双折射特性的基础上,优化设计了40路波长信道、1550nm中心波长、0.8nm波长间隔的抗偏振变动的波长交叉分离耦合器.数值模拟显示波长周期偏移小于0.1nm,1dB带宽为0.5nm,3dB带宽为0.8nm,串扰小于-30dB,偏振变动导致的波长漂移小于0.08nm.更多还原

【Abstract】 A statistical optimization method for the design of a fluorinated polyimide wavelength division element for optical communications is proposed. The optimized device is an interleaver element suitable for dividing over 40 wavelengths in the 1550 nm band. Optimization considers the inherent polarization dependence of fluorinated polyimide based on measurements of the dispersion characteristics and birefringence of fluorinated polyimide film. A 40 wavelength device is designed using the proposed technique, for a working wavelength of 1550 nm and a wavelength interval of 0.8 nm. The device exhibited 1 dB passband of 0.5 nm and 3 dB passband of 0.8 nm, and output wavelength fluctuation due to polarization effects of less than 0.08 nm.更多还原