摘要
研制了一种新型全聚合物49信道绝热低偏振相关阵列波导光栅(AWG)芯片。利用直接紫外光写入技术,实现了波导芯片的设计与制备。利用Matlab软件对AWG的传输特性进行了优化模拟,通过对聚合物衬底的热膨胀系数和聚合物波导的热光系数进行调控,得到了器件良好的绝热低偏振相关特性。测得AWG的中心波长为1550.918 nm,波长间隔为0.8 nm,插入损耗的信道变化范围是5.51 d B^10.62 d B,串扰大于20 d B,偏振漂移和温度变化分别是0.08 nm和0.03 nm/K。这种新技术十分适用于高性能多功能集成光路中,具有广阔的应用前景。
An athermal low polarization-independent 49-channel arrayed-waveguide grating（AWG） multiplexer relying on a ultraviolet（UV） curable all-polymer approach is designed and fabricated by simple direct ultraviolet photolithography process. The transmission properties of the AWG around the central wavelength of 1550.918 nm with the wavelength spacing of 0.8 nm are optimized by Matlab programming. By properly adjusting the positive coefficient of thermal expansion of the polymer substrate and the negative thermo-optic coefficient of the polymer waveguide, athermal and low polarization-independent characteristics of AWG device are realized. The actual fiberfiber insertion loss at each channel is from 5.51 dB to 10.62 dB, and the crosstalk of the 49 channels is larger than20 dB. Both polarization drifts and temperature shifts of the AWG are 0.08 nm and 0.03 nm/K, respectively. The new technique can be well suited for realizing optical integrated circuits with excellent performances.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2015年第4期345-351,共7页
Acta Optica Sinica
基金
国家自然科学基金(61107019,61077041,61107027)
教育部高等学校博士点专项科研基金(20110061120054)
中国博士后科学基金面上项目(2011M500597)
中国博士后科学基金特别资助项目(2012T50277)
集成光电子学国家重点联合实验室自主研究课题(IOSKL2012ZZ06)
吉林省发改委高技术产业专项资金项目(JF2012G048)
吉林省科技发展计划项目(20130522151JH,20140519006JH)
关键词
集成光学
阵列波导光栅
紫外固化聚合物
绝热化光学器件
低偏振相关
integrated optics
arrayed waveguide grating
ultraviolet curable polymer
athermal optical device
low polarization independence
