Photonic Generation and Transmission of Frequency-Doubled Triangular and Square Waveforms Based on Two Mach–Zehnder Modulators and a Sagnac Loop

Zhai, Weile; Wen, Aijun; Shan, Dongjuan

doi:10.1109/jlt.2019.2895844

Cited by 25 publications

(12 citation statements)

References 23 publications

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“…The fourth key function enabled by MWP spectral shaping discussed here is the arbitrary RF waveform generation. This technique has been used in many applications, such as communications, radar, and medical imaging systems [54][55][56]. Generating arbitrary RF waveforms with integrated electronics is difficult due to the limitations in digital-to-analog converter (DAC) technologies and high timing jitter [57].…”

Section: Rf Waveform Generationmentioning

confidence: 99%

A Tutorial on Integrated Microwave Photonic Spectral Shaping

Daulay

Liu

Guo

et al. 2021

J. Lightwave Technol.

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Integrated microwave photonics (MWP) is a rapidly growing field where high frequency microwave signals are processed in the optical domain, bringing key advantages of both microwave photonics and integrated optics technologies including low-losses, reconfigurability, advanced functionality, enhanced performance, and reduced footprint. The MWP spectrum generated from optical modulation carry utmost importance for the functionalities and performance of integrated MWP systems. Thus, precise phase and amplitude shaping of the MWP spectrum can open avenues to advanced functionalities presently unattainable. In this tutorial, we present a new concept of integrated MWP spectral shaping covering the basic principles, theory, and implementations of MWP spectral shaping for modulation transformation, reconfigurable filters, link linearization, and RF waveform generation.

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Section: Rf Waveform Generationmentioning

confidence: 99%

A Tutorial on Integrated Microwave Photonic Spectral Shaping

Daulay

Liu

Guo

et al. 2021

J. Lightwave Technol.

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show abstract

“…The single drive MZM is set to operate at minimum transmission point (MITP) so that the carrier suppressed double sideband (CS-DSB) signal can be generated after the SBS effect. Under the small-signal modulation condition, the output optical field of the CS-DSB signal can be written after the expansion of Bessel function as follows [24]:…”

Section: Operation Principlementioning

confidence: 99%

Simple and Flexible All-Optical Microwave Photonic Frequency Converter Based on Stimulated Brillouin Scattering Effect

et al. 2020

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We present a novel and simple scheme for all-optical microwave photonic frequency converter, free of electrical components, based on stimulated Brillouin scattering (SBS) effect. An SBS-based frequency shifter is incorporated to generate Stokes wave whose frequency is down-shifted by , where is defined as the Brillouin frequency shift. With a tunable optical passband filter, the up/down frequency conversion can be realized through the same structure. In the proof-of-concept experiment, the microwave signal at 1 to 15 GHz can be up-converted while the microwave signal at 11 to 29 GHz can be down-converted by the microwave photonics frequency converter. Moreover, the frequency and power stability of the generated signals are also investigated in three hours. To vindicate flexibility, low cost and easy implementation of the proposed all-optical setup, an experiment is carried out, and it turns out that only the frequencyto-be-converted signal source is needed while providing the ultra-wideband up/down conversion.

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“…[14][15][16], triangular waveform generation methods based on waveform time-domain synthesis in MZMs at different modulation modes are presented. In addition to the proposals mentioned above, schemes based on external modulation cooperated with spectrum manipulation are also widely studied [17][18][19][20][21][22][23][24]. A continuous wave (CW) is firstly modulated by an external modulator, after which a sequence of optical spectral lines is generated.…”

Section: Introductionmentioning

confidence: 99%

“…A continuous wave (CW) is firstly modulated by an external modulator, after which a sequence of optical spectral lines is generated. Then various photonic techniques, like dispersion elements [17,18], filters [19][20][21], or optical nonlinear effect [22][23][24] are applied to manipulate the amplitudes and phases of the spectral lines to satisfy the characteristics of a triangular waveform. For example, as in Ref.…”

Section: Introductionmentioning

confidence: 99%

A Photonic-Assisted Generation of Triangular Waveform With Frequency Octupling

Yuan

2021

Preprint

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A new photonic approach for generating a triangular waveform with octupled-frequency is presented. The core principle is the frequency outupling technique based on two cascaded dual-parallel Mach-Zehnder modulators (DP-MZMs). A dual-electrode MZM (De-MZM) and a single mode fiber (SMF) are subsequently applied to manipulate the signal spectrum to satisfy the characteristics of that of a triangular waveform. By applying a 2-GHz radio frequency (RF) signal, a full-duty-cycle triangular waveform with repetition rate of 16-GHz is obtained. The high frequency multiplying factor shows great potential in generating a cost-effective waveform. Additionally, the phase imbalance of hybrid coupler and bias drift of MZM have been considered in our simulation, which further verify the feasibility and stability of our proposal.

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Photonic Generation and Transmission of Frequency-Doubled Triangular and Square Waveforms Based on Two Mach–Zehnder Modulators and a Sagnac Loop

Cited by 25 publications

References 23 publications

A Tutorial on Integrated Microwave Photonic Spectral Shaping

A Tutorial on Integrated Microwave Photonic Spectral Shaping

Simple and Flexible All-Optical Microwave Photonic Frequency Converter Based on Stimulated Brillouin Scattering Effect

A Photonic-Assisted Generation of Triangular Waveform With Frequency Octupling

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