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【期刊论文】GsAIAs/GaAs量子阱行波Mach-Zehnder光调制器电极传输线的微波响应*
王明华, 周剑英, 李锡华, 周小平, 陈克坚, 赵旭
半导体学报,2003,24(11):1206~1210,-0001,():
-1年11月30日
研制了利用直线法设计的基于GaAs衬底上的Mach-Zehnder行波光调制器。波导层使用了场诱折射率改变量较大的非对称多量子阱结构,采用脊型波导,并湿法刻蚀出台面以消除波导区以外的载流子引起的损耗。调制器电极微波特性测试结果表明频率响应在2.5~20GHz没有明显的起伏,但在低频段响应下降很快,另外微波损耗较大,计论了其原因和改进方法。
调制器, 马赫-曾德尔, 多量子阱
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王明华, Hao Feng, Xihua Li, Zhuoya Yang, and Minghua Wang
Appl. Phys. Lett. 60 (23), 8 June 1992,-0001,():
-1年11月30日
We report on the first 2
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【期刊论文】Experimental Demonstration of Two-Dimensional Multimode-Interference Optical Power Splitter
王明华, SUN Yi-Ling, , JIANG Xiao-Qing, YANG Jian-Yi, TANG Yi, WANG Ming-Hua
CHIN.PHYS.LETT. 20, 12 (2003) 2182~2184,-0001,():
-1年11月30日
A two-dimensional multimode-interference optical power splitter is designed and demonstrated. The new device can be used for the optical power splitting in two transverse directions. Silicon-on-insulator technology is utilized to fabricate the device. The performance of the device is tested.
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王明华, LI Xia**, LI Xi-Hua, JIANG Xiao-Qing, WANG Ming-Hua
CHIN.PHYS.LETT. 21, 8 (2004) 1556~1557,-0001,():
-1年11月30日
Based on the principle of the graded-index multimode interference (MMI), an 8
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【期刊论文】Improved approach to low-loss and high-uniformity MMI devices
王明华, Rui Yin*, Jianyi Yang, Xiaoqing Jiang, Jin Li, Minghua Wang
Optics Communications 181 (2000) 317-321,-0001,():
-1年11月30日
Improved approach to low-loss and high-uniformity multimode interference MMI devices is proposed in this paper. An optimized index contrast is selected to decrease the propagation constant errors of modes near cutoff in the MMI region. 1
Multimode interference, Self-imaging
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