Equivalent photonic switch for microwave frequency shift keying signal generation

Lei, Mingzheng; Zheng, Zhennan; Song, Chunqi; Bai, Yunping; Qian, Jinwang; Huang, Shanguo; Gao, Xinlu

doi:10.1364/ol.44.003138

Cited by 10 publications

(5 citation statements)

References 14 publications

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“…Supposing that a microwave FSK signal with two subcarriers of 30GHz and 32GHz is wanted for millimeter wave communication, our scheme can set ωr1=1GHz and ωr2=15.5GHz, which indicates that we only need a low-frequency RF input and a high-frequency RF input to generate the high-frequency microwave FSK signal, and the two subcarrier frequencies can be continuously tuned by adjusting the low frequency RF input ωr1. In contrast, the schemes in [11] and [12] need two RF inputs at 15GHz and 16GHz to achieve the same task, which increases the requirements for RF sources. Fig.…”

Section: B Fsk With Tunable Subcarrier Frequenciesmentioning

confidence: 99%

“…By adjusting the two MZMs to work at the MITP, microwave FSK signal can be obtained. In [11] and [12], only a polarization-division-multiplexed MZM is used to generate microwave FSK signal by adjusting the bias point of two MZMs to switch between QTP and MITP. In [13], a PolM also acts as a polarization switch, and a polarization maintaining fiber Bragg grating (PM-FBG) is employed to select different optical sideband in different polarization directions, then the output optical sideband is combined with a tunable optical source and sent into a photodetector (PD) to generate microwave FSK signal.…”

Section: Introductionmentioning

confidence: 99%

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Photonic Generation of Multiform Microwave Frequency Shift Keying Signal

Wang

feng

et al. 2021

IEEE Access

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A photonic approach to generate multiform microwave frequency shift keying (FSK) signal is proposed. In the scheme, a dual-polarization quadrature phase shift-keying (DP-QPSK) modulator along with a polarization controller (PC) is employed to generate two orthogonally polarized signals containing specific optical sidebands, and a following tunable filtering switch (TFS) serve as optical sidebands selector. From a theoretical analysis, when the modulators in the scheme are properly biased, we can obtain microwave FSK signal with frequency multiplication factors of 2/4 or microwave FSK signal with flexible tunable subcarrier frequencies. Simulations are conducted to verify the proposed scheme. 10/20GHz and 8/12GHz microwave FSK signals are successfully generated, and the frequency tunability is also demonstrated. In addition, the impact of the non-ideal parameters is analyzed, and the results show that the scheme has good immunity to the small parameters deviation (within 3º). The distinct advantage of our scheme is that we realize multiform microwave FSK signal generation based on a single system, which may find applications in high-frequency multifunction wireless communication system or radar system. INDEX TERMS Microwave photonics; Microwave signal generation; Frequency shift keying.

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Section: B Fsk With Tunable Subcarrier Frequenciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photonic Generation of Multiform Microwave Frequency Shift Keying Signal

Wang

feng

et al. 2021

IEEE Access

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“…Through the combination of the polarization switch and various parallel modulators, the FSK signal is generated. In addition, the 4-ray FSK signal can be generated by polarization multiplexing DD-MZMs [30].…”

Section: Introductionmentioning

confidence: 99%

A Flexible Multi-Format Signal Generation Method Based on Optically Coupled Selector Switch

Jiang

Tan

et al. 2021

IEEE Access

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An approach for microwave signal generation with adjustable formats including ASK, PSK, FSK and FPSK (FSK-PSK) is proposed and demonstrated in this paper. In the proposed scheme, a phase modulator (PM) and an optical coupler form optically coupled selector switch (OCSS), which transmit the optical signal on specified path by adjusting its driving signal. Two parallel-placed Dual-Drive Mach-Zehnder modulators (DD-MZM) and a followed photodetector (PD) are employed to generate the multiformat microwave signals. From a theoretical analysis, the microwave signals with tunable formats can be obtained by properly adjusting the amplitude of the coding signals. The simulation and experimental results show that the ASK, PSK, FSK and FPSK signals are successfully generated, and the modulation format can be switched simply by adjusting the system parameters. In addition, the frequency and bit rate of generated signal can be adjusted according to the demand, so flexible tunability can be realized easily.

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“…PSK signals have been generated using a dual-polarization dual-parallel MZM [14][15], a dual-parallel MZM [16][17], or a dual-drive MZM [18][19]. FSK signals have been generated by using a polarization multiplexing dual-drive MZM [20], a single MZM [21], or a PolM [22][23]. However, in some practical applications, such as dynamic high-speed communication networks, a scheme to simultaneously generate ASK/PSK/FSK signals with fast switching speed is required.…”

Section: Introductionmentioning

confidence: 99%

Photonic Approach for Generation and Fast Switching of Binary Digitally Modulated RF Signals

et al. 2020

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A photonic method to generate hybrid binary digitally modulated radio frequency (RF) signals (i.e. ASK, PSK, and FSK) by using a polarization-division-multiplexed Mach-Zehnder modulator (PDM-MZM) is proposed. The PDM-MZM is driven by two RF signals with different carrier frequencies and two multiplied digital signals. By properly controlling the offsets and the amplitudes of the digital signals, ASK, PSK, and FSK signals can be generated and switched fastly. RF signals at 4/6 GHz and 10/15 GHz with switchable modulation formats are experimentally generated. Moreover, the performances of the generated signals are evaluated in a wireless transmission system and corresponding bit error rate (BER) curves of the signals are presented.

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Equivalent photonic switch for microwave frequency shift keying signal generation

Cited by 10 publications

References 14 publications

Photonic Generation of Multiform Microwave Frequency Shift Keying Signal

Photonic Generation of Multiform Microwave Frequency Shift Keying Signal

A Flexible Multi-Format Signal Generation Method Based on Optically Coupled Selector Switch

Photonic Approach for Generation and Fast Switching of Binary Digitally Modulated RF Signals

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