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 modulato
โฆ LIBER โฆ
Microwave photonic filter with negative coefficients based on counter-phase modulation using a single electro-optic phase modulator
โ Scribed by Jianqiang Li; Kun Xu; Jian Wu; Jintong Lin
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 487 KB
- Volume
- 282
- Category
- Article
- ISSN
- 0030-4018
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โฆ Synopsis
A simple photonic approach is proposed for the implementation of a reconfigurable multi-tap microwave filter with negative coefficients. In this scheme, a dual-optical-input intensity modulation module which can perform counter-phase modulation is constructed using a single electro-optic phase modulator. Two inter-complementary microwave signals are experimentally obtained for verification of the function of counter-phase modulation. A reconfigurable four-tap microwave filter with two negative coefficients is implemented by experiment.
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