16-channel dual-tuning wavelength division multiplexer/demultiplexer*

Project supported by the National Key Research and Development Program of China (Grant No. 2016YFB0402504) and the National Nature Science Foundation of China (Grant No. 61435013).

Yuan Pei1, 2, Wang Yue1, †, Wu Yuan-Da1, 2, ‡, An Jun-Ming1, 2, Hu Xiong-Wei1
       

(color online) Schematic diagram of (a) top view of wavelength division multiplexer/demultiplexer with dual-tunable function, (b) heater structure, and (c) VOA structure.