Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1537815 | Optics Communications | 2011 | 4 Pages |
Abstract
A simple all-optical coherence-free microwave notch filter is proposed and experimentally demonstrated. The filter with switchable passbands is based on a single-wavelength optical source and phase-intensity hybrid modulation scheme. The DC bias voltage applied to the Mach–Zehnder intensity modulator can be adjusted to switch signs of the tap coefficients, which affect the baseband response. Both lowpass and bandpass filtering responses are observed in the experiment and agree well with the simulated results.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Kun Zhu, Haiyan Ou, Chenhui Ye, Hongyan Fu, Sailing He,