High-speed Switchable Dual-passband Microwave Photonic Filter with Dual-Beam Injection in an SMFP-LD

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In this paper, a high-speed switchable dual-passband microwave photonic filter (MPF) using a single mode Fabry-Perot laser diode (SMFP-LD) is proposed and experimentally demonstrated. Benefiting from the wavelength selective amplification in the SMFP-LD, the +1st sideband of two external beams injected after phase modulation can be amplified in the gain spectrum of the SMFP-LD. Hence, an MPF with two tunable passbands is generated. The switching of the generated passbands is obtained through the switching signal of 1 Gbps applied to the modulator, which controls the power of one of the external beams. By properly setting the external beams injection parameters, the passbands of MPF can switch from single passband to no passband, single passband to dual passband, and one passband to another passband. In this experiment, the maximum center frequency and tuning range of the passbands is 45.0 GHz and 35.0 GHz, respectively. The out-of-band rejection ratio and 3 dB bandwidth of the proposed filter are 29.62 dB and 83 MHz, respectively.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2021-12
Language
English
Article Type
Article
Citation

JOURNAL OF LIGHTWAVE TECHNOLOGY, v.39, no.24, pp. 7966 - 7972

ISSN
0733-8724
DOI
10.1109/JLT.2021.3080826
URI
http://hdl.handle.net/10203/290970
Appears in Collection
EE-Journal Papers(저널논문)
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