Performance Analysis of a Photonic-Assisted Periodic Triangular-Shaped Pulses Generator

Li, Jing; Zhang, Xiupu; Hraimel, Bouchaib; Ning, Tigang; Pei, Li; Wu, Ke

doi:10.1109/jlt.2012.2187880

Cited by 67 publications

(39 citation statements)

References 13 publications

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“…In [9], a continuous-wave (CW) light wave was modulated by a reference radio-frequency (RF) signal through a dual-electrode Mach-Zehnder modulator (De-MZM). By controlling the bias voltage to the De-MZM, even-order sidebands were suppressed.…”

Section: Introductionmentioning

confidence: 99%

“…In addition to the above techniques in [6]- [9], microwave waveforms can also be generated based on temporal Talbot effect [10], [11], using a microwave photonic filter [12], [13], and based on temporal pulse shaping [14]. The major limitation of these techniques in [10]- [14] is that the repetition rate of the generated waveform is difficult to tune, which limits the applications where a tunable repetition rate is needed.…”

Section: Introductionmentioning

confidence: 99%

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Photonic Generation of Microwave Waveforms Based on a Polarization Modulator in a Sagnac Loop

Liu

Yao

2014

J. Lightwave Technol.

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An optical microwave waveform generator using a polarization modulator (PolM) in a Sagnac loop is proposed and experimentally demonstrated. Microwave waveforms including a triangular waveform, a sawtooth waveform, and a square waveform, can be generated using a sinusoidal signal to modulate a light wave at a PolM in a Sagnac loop. In the proposed microwave waveform generator, a sinusoidal microwave signal is applied to the PolM in the Sagnac loop. Due to the velocity mismatch, only the clockwise light wave in the Sagnac loop is effectively modulated by the sinusoidal microwave signal at the PolM, and the counter-clockwise light wave is not modulated. Along the clockwise direction, the powers of the odd-and even-order sidebands can be controlled separately by tuning a polarization controller after the PolM. In addition, the output power of the optical carrier can be independently controlled by combining the counter-clockwise and clockwise optical carriers at the output of a polarization beam splitter. As a result, a modulated signal with controllable odd-and even-order sidebands is generated. By applying the modulated signal to a photodetector, a microwave signal with fully controllable odd-and even-order harmonics is generated, which corresponds to a desired microwave waveform. A theoretical analysis is developed, which is validated by an experiment. A triangular, sawtooth, and square waveform with a repetition rate tunable from 2 to 4 GHz is experimentally generated.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photonic Generation of Microwave Waveforms Based on a Polarization Modulator in a Sagnac Loop

Liu

Yao

2014

J. Lightwave Technol.

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“…It has also been reported that triangular pulses can be used, for example, for pulse compression, doubling of optical signals, and signal copying [2,3]. So far, much effort has been put into photonic generation of triangular pulses [4][5][6][7][8][9][10][11]. External modulation of an optical carrier has been considered as a promising method.…”

mentioning

confidence: 99%

“…The external modulators are usually driven by a sinusoidal microwave signal. Triangular pulses were successfully generated using a Mach-Zehnder modulator, a dual-parallel Mach-Zehnder modulator, or a polarization modulator (PolM) [4][5][6][7][8][9]. In [8], a PolM was inserted in a Sagnac loop.…”

mentioning

confidence: 99%

“…This is the first time, to the best of our knowledge, that the NPR effect is used to generate triangular pulses. Compared with the approaches reported in [4][5][6][7][8][9], the external modulators are not required any more, as the control beam in our scheme can be obtained by selecting two modes of a mode-locked laser. Moreover, compared with other all-optical methods [10,11], the proposed method is capable of generating triangular pulse with a full duty cycle.…”

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confidence: 99%

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Photonic generation of triangular pulses based on nonlinear polarization rotation in a highly nonlinear fiber

Wang

Wen

et al. 2014

Opt. Lett.

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We propose a novel method to generate triangular pulses based on the nonlinear polarization rotation (NPR) effect in a highly nonlinear fiber. A continuous wave probe beam is polarization-rotated by an intensity-modulated control beam via the NPR effect. A polarization-division-multiplexing emulator is exploited to split the probe beam into two orthogonally polarized states with imbalanced time delay. After detection by a photodetector, a 90° microwave phase shifter is used to compensate the phases of the fundamental and the third-order harmonic components in order to generate triangular pulses. Triangular pulses at 5 and 6 GHz with full duty cycles are experimentally generated. The root mean square errors between the generated and the simulated waveforms are 3.6e-4 and 1e-4 for triangular pulses at 5 and 6 GHz, respectively.

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Photonic Generation of Frequency-Doubled Triangular-Shaped Waveforms Based on a PM-MZM Modulator

Gao

et al. 2020

J Russ Laser Res

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Performance Analysis of a Photonic-Assisted Periodic Triangular-Shaped Pulses Generator

Cited by 67 publications

References 13 publications

Photonic Generation of Microwave Waveforms Based on a Polarization Modulator in a Sagnac Loop

Photonic Generation of Microwave Waveforms Based on a Polarization Modulator in a Sagnac Loop

Photonic generation of triangular pulses based on nonlinear polarization rotation in a highly nonlinear fiber

Photonic Generation of Frequency-Doubled Triangular-Shaped Waveforms Based on a PM-MZM Modulator

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