Multiple passband microwave photonic filter with adjustable bandwidth

Gonzalez-Mondragon, L. A.; Quintero-Rodriguez, L. J.; García-Juárez, A.; Vera-Marquina, A.; Zaldívar-Huerta, I. E.

doi:10.1016/j.optlastec.2020.106133

Cited by 9 publications

(7 citation statements)

References 9 publications

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“…This passband exhibited a bandwidth of 624.71 MHz at −3 dB, and an SNR of 27.56 dB. The formation of a low passband at the origin of the curve is in good agreement with the theory described in [7].…”

Section: Simulation and Experimental Resultssupporting

confidence: 88%

“…The center frequency of this filtered passband is also computed with the formula described in Ref. [7] = (1) By substituting the δλ, L, and D values in the relationship, a value of f1 = 6.95 GHz was computed. The experimental operation is described in the following.…”

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

“…The center frequency of this filtered passband is also computed with the formula described in Ref. [7] =…”

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

“…The reconfigurability is achieved by the use of an adequate optical filter that allows changing the intermodal separation (δλ) of the MLD. For this purpose, we have used a section of Birefringent Optical Fiber (BOF) in order to introduce an optical delay [7,8]. Thus, by adjusting δλ with the BOF, the reconfigurability of the MPF is demonstrated with six passbands experimentally.…”

Section: Introductionmentioning

confidence: 99%

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Demonstration of a Duplex Microwave Photonic Filter and Its Reconfigurability in a Frequency Range of 0–10 GHz

et al. 2020

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In this paper, we have demonstrated a duplex microwave photonic filter system. The reconfigurability of a microwave passband filter by using a birefringent optical filter has also been demonstrated experimentally. The effect of filtering normally depends on the intermodal separation of a multimode laser diode (MLD), as well as the chromatic dispersion parameter and the length of a Single Mode-Standard Fiber (SM-SF). However, in this work, the intermodal separation of the MLD is altered by an optical filter which consists of a section of birefringent optical fiber (BOF) placed between crossed polarizers. Using this filter, six passbands in the frequency range of 0–10 GHz are obtained. Our duplex Microwave Photonic Filter (MPF) system is driven by only a single optical source. Performance evaluation for the filtered passband is also given in terms of the Signal-to-Noise-Ratio (SNR). On average, an SNR of 13.87 dB is obtained for all the passbands generated by our duplex Microwave Photonic Filter (MPF) system. For potential applications, the generated passbands may be used as radio frequency (RF) carriers to transmit analog or digital data in an optical communications system.

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Section: Simulation and Experimental Resultssupporting

confidence: 88%

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

“…The center frequency of this filtered passband is also computed with the formula described in Ref. [7] =…”

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Demonstration of a Duplex Microwave Photonic Filter and Its Reconfigurability in a Frequency Range of 0–10 GHz

et al. 2020

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“…Most MPFs reported are single-band ones, because such design is simpler and easier to realize tuning and reconfiguration features than multiband filters [12], [13], [14]. In recent years, reports on multiband MPFs have been more based on optical spectral slicing, optical frequency combs, and phase modulation to intensity modulation (PM-IM) [15], [16], [17]. However, several kilometers of fiber are required as dispersion media or delay lines in these schemes and some systems even require multiple laser sources or optical filters, which enlarges the size and complexity of the systems.…”

mentioning

confidence: 99%

A Multiband Microwave Photonic Filter Based on a Strongly Coupled Microring Resonator With Adjustable Bandwidth

et al. 2023

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A bandwidth-tunable multiband microwave photonic filter (MPF) using a strongly coupled microring resonator (MRR) with optical phase modulation is demonstrated theoretically and experimentally. Two notches of the MRR adjacent to the optical carrier break the intrinsic balance of the phase-modulated signal and then two sub-MPFs are formed thanks to the conversion from phase modulation to intensity modulation (PM-IM). The frequency responses of the two sub-MPFs are superimposed to form a passband with a fixed center frequency. Due to the periodicity of the MRR transmission spectrum, multiple passbands separated by a certain spacing appear in the frequency domain and combine to form a multiband MPF, whose bandwidth can be adjusted by tuning the wavelength of the carrier. The tunable bandwidth and shape factors ranging from 0.73 GHz to 2.73 GHz and 5.06 to 1.38 are experimentally performed. The number of passbands can be reconfigured. The proposed multiband MPF has the potential to be employed in modern multi-standard wireless communication systems.

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Generating Loss Dependent Bifid Dips of Optical Carrier Based Microwave With Self-Feedback Anti-Symmetric Coupled Fiber Ring Resonator

Wang

et al. 2022

J. Lightwave Technol.

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Multiple passband microwave photonic filter with adjustable bandwidth

Cited by 9 publications

References 9 publications

Demonstration of a Duplex Microwave Photonic Filter and Its Reconfigurability in a Frequency Range of 0–10 GHz

Demonstration of a Duplex Microwave Photonic Filter and Its Reconfigurability in a Frequency Range of 0–10 GHz

A Multiband Microwave Photonic Filter Based on a Strongly Coupled Microring Resonator With Adjustable Bandwidth

Generating Loss Dependent Bifid Dips of Optical Carrier Based Microwave With Self-Feedback Anti-Symmetric Coupled Fiber Ring Resonator

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