Chinese Optics Letters, 2020, 18 (3): 031301, Published Online: Feb. 21, 2020
Wavelength-mode pulse interleaver on the silicon photonics platform Download: 986次
Abstract
We report an 8-channel wavelength-mode optical pulse interleaver on a silicon photonic chip. Wavelength- and mode-division multiplexing techniques are combined to increase the repetition rate of the pulses without adding the complexity of a single dimension. The interleaver uses a cascaded Mach–Zehnder interferometer architecture as a wavelength-division (de)multiplexer, an asymmetric directional coupler as a mode (de)multiplexer, and various lengths of silicon waveguides as delay lines. A pulse sequence with a time interval of 125 ps is implemented with the repetition rate being eight times that of the initial one. The demonstrated wavelength-mode multiplexing approach opens a new route for the generation of high-speed optical pulses.
Xinyi Wang, Gangqiang Zhou, Zhengtao Jin, Liangjun Lu, Guiling Wu, Linjie Zhou, Jianping Chen. Wavelength-mode pulse interleaver on the silicon photonics platform[J]. Chinese Optics Letters, 2020, 18(3): 031301.