Abstract
This study investigates the subchannel drop and add operation of a silicon photonic all-optical orthogonal frequency division multiplexing demultiplexer (O-OFDM-DEMUX) circuit. The proposed device consists of two O-OFDM-DEMUX circuits with four subchannels at a frequency spacing of 10 GHz and four $2 \times 2$ Mach–Zehnder interferometer (MZI)-type optical switches for drop and through operations, with another four $2 \times 2$ MZI-type optical switches for add and through operations. A subchannel on–off ratio of over 20 dB was achieved. In addition, a new subchannel was successfully added to the target subchannel, although the shape of the transmissivity spectrum was slightly degraded through the detuning of the spectrum.
© 2020 Optical Society of America
Full Article | PDF ArticleMore Like This
Shipeng Wang, Hao Wu, Hon Ki Tsang, and Daoxin Dai
Opt. Lett. 41(22) 5298-5301 (2016)
Shipeng Wang, Xianglian Feng, Shiming Gao, Yaocheng Shi, Tingge Dai, Hui Yu, Hon-Ki Tsang, and Daoxin Dai
Opt. Lett. 42(14) 2802-2805 (2017)
Koichi Takiguchi, Tsutomu Kitoh, Atsushi Mori, Manabu Oguma, and Hiroshi Takahashi
Opt. Lett. 36(7) 1140-1142 (2011)