16-channel dual-tuning wavelength division multiplexer/demultiplexer

• 来源期刊: 中国物理B（英文版）
• 关键词: arrayed waveguide grating variable optical attenuator silicon photonics
• 年，卷（期）: 2018,（12）
• 页码范围: 360-366
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1056/27/12/124208

摘要

A 16-channel dual tuning wavelength division multiplexer/demultiplexer based on silicon on insulator platform is demonstrated, which is both peak wavelength tunable and output optical power tunable. The wavelength division mul-tiplexer/demultiplexer consists of an arrayed waveguide grating for wavelength division multiplexing/demultiplexing, a heater for peak wavelength tuning and a variable optical attenuator based on p–i–n carrier-injection structure for optical power tuning. The experimental results show that the insertion loss on chip of the device is 3.7 dB–5.7 dB and the crosstalk is 7.5 dB–9 dB. For the tunability of the peak wavelength, 1.058-nm wavelength tunability is achieved with 271.2-mW power consumption, and the average modulation efficiency is 3.9244 nm/W;for the tunability of the optical power, the op-tical power equalization is achieved in all 16 channels, 20-dB attenuation is achieved with 144.07-mW power consumption, and the raise/fall time of VOA is 35 ns/42 ns.