Triangular Pulse Generation by Polarization Multiplexed Optoelectronic Oscillator

Zhang, Fangzheng; Gao, Bindong; Zhou, Pei; Pan, Shilong

doi:10.1109/lpt.2016.2562031

Cited by 23 publications

(7 citation statements)

References 16 publications

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“…The duty cycle of triangular waveform generated by this kind of scheme is generally less than 1. Another common method of triangular waveform generation is using an optoelectronic oscillator (OEO) [8][9][10][11]. In Ref.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Introductionmentioning

confidence: 99%

“…In Ref. [11], an OEO which can concurrently oscillate at two orthogonally polarized frequencies is applied to generate a triangular pulse train. In these schemes, no additional radio frequency (RF) source is required.…”

Section: Introductionmentioning

confidence: 99%

A Photonic-Assisted Generation of Triangular Waveform With Frequency Octupling

Yuan

2021

Preprint

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“…Due to its potential application in all-optical signal processing systems [1][2][3], triangular waveform generation based on photonic technologies has been widely studied recently. Various approaches have been proposed [4][5][6][7][8][9][10][11][12][13][14][15][16][17]. One typical method is implemented based on frequency-to-time mapping (FTTM) [4,5], where the optical spectrum is shaped to have a triangular envelope, and then converted to a temporal triangular waveform.…”

Section: Introductionmentioning

confidence: 99%

“…These schemes, however, can only generate a triangular pulse with a small duty cycle (<1) [4][5][6][7]. In order to produce triangular pulses with a large or even full duty cycle, external modulation of a continuous wave (CW) optical carrier was proposed [8][9][10][11][12][13][14][15][16][17]. The key of this kind of approach is to control the frequency components of the generated signal to have amplitudes that are approximately equal to the Fourier components of a triangular waveform.…”

Section: Introductionmentioning

confidence: 99%

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Full-duty triangular pulse generation based on a polarization-multiplexing dual-drive Mach-Zehnder modulator

et al. 2016

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A simple and flexible photonic approach to generating a triangular microwave waveform using a single integrated polarization-multiplexing dual-drive Mach-Zehnder modulator (PM-DMZM) and a polarizer is proposed and demonstrated, which needs no specific large modulation indices or an optical filter. In the proposed method, one sub-Mach-Zehnder modulator (MZM) in the PM-DMZM is driven by a fundamental frequency, which generates an optical signal composed of an optical carrier and a + 1st-order sideband along one polarization direction; and the other sub-MZM is driven by a frequency tripled signal, generating an optical carrier and a -1st-order sideband along the orthogonal polarization direction. By adjusting the polarization direction of the polarizer following the PM-DMZM, which changes the power ratio of the two sidebands, optical intensity with expression corresponding to the Fourier expansion of a triangular-shaped waveform is obtained. Different from the previously reported approaches, neither specific large modulation index nor optical filtering is required, which guarantees a large operational frequency range and improved robustness. A proof-of-concept experiment is carried out. 5-GHz triangular-shaped waveform signals are successfully generated with different modulation indices.

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Polarization controlled dispersion tunable optoelectronic oscillator and frequency octupling without bandpass filter

Kumar,

Raghuwanshi

2023

Opt Quant Electron

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Triangular Pulse Generation by Polarization Multiplexed Optoelectronic Oscillator

Cited by 23 publications

References 16 publications

A Photonic-Assisted Generation of Triangular Waveform With Frequency Octupling

A Photonic-Assisted Generation of Triangular Waveform With Frequency Octupling

Full-duty triangular pulse generation based on a polarization-multiplexing dual-drive Mach-Zehnder modulator

Polarization controlled dispersion tunable optoelectronic oscillator and frequency octupling without bandpass filter

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