Reconfigurable microwave photonic mixer based on dual-polarization dual-parallel Mach–Zehnder modulator

Shi, Zhun; Zhu, Song Chun; Li, Ming; Zhu, Ning Hua; Li, Wei

doi:10.1016/j.optcom.2018.07.055

Cited by 24 publications

(15 citation statements)

References 21 publications

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“…For example, simulation results show the IRR of a phase cancellation based IRM [14] is below 20 dB when there is ±12°phase deviation in a 90°hybrid coupler. Techniques have been proposed based on using a microwave photonic phase shifter [16], [17] and a 90°optical hybrid [18]- [20] to realise broadband 90°phase shift with only small phase deviation for image rejection mixing operation. However, they suffer from the stability problem due to modulator bias drift or path length variation caused by environmental perturbations.…”

Section: Introductionmentioning

confidence: 99%

Brillouin-Assisted Notch Filtering Based All-Optical Image Rejection Mixer

2019

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A novel approach for realizing a microwave photonic image rejection mixer is presented in this paper. It is based on using a widely tunable narrow-band optical notch filter implemented by stimulated Brillouin scattering (SBS) to remove the image signal. The image rejection mixer has a simple structure as it only requires a single integrated dual-polarization modulator for both frequency conversion and pump wave generation for the SBS process. The absence of electrical components enables the image rejection mixer to be operated over a wide frequency range with a high image rejection ratio. A technique is also proposed to suppress the noise generated by the SBS process in the image rejection mixer. Experimental results demonstrate a high and constant image rejection ratio of over 32 dB for the image rejection mixer operating over an RF signal frequency range of 11.8-19.6 GHz, and around −5 dB conversion efficiency.

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Section: Introductionmentioning

confidence: 99%

Brillouin-Assisted Notch Filtering Based All-Optical Image Rejection Mixer

2019

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“…Therefore, the image free mixers are urgently required. In these years, various well performed image rejection mixers have been proposed [9]- [21]. At first, the filterbased mixers that try to pre-filter the image component from the electrical field [9], [10] or the optical field [11] are considered.…”

Section: Introductionmentioning

confidence: 99%

“…However, the filter-based structure may suffer from the limit operation range and complex system. In order to solve these problems, the phase cancellation techniques are reported [12]- [21]. It should be mentioned that Hartley structure is the key technology of these phase cancellation techniques.…”

Section: Introductionmentioning

confidence: 99%

“…It should be mentioned that Hartley structure is the key technology of these phase cancellation techniques. Extra devices are required in these mixers such as phase shifter [12]- [15], 90°electrical hybrid coupler [16]- [18] or 90°optical hybrid coupler [19]- [21] to satisfy the phase cancellation condition. For these methods, the phase accuracy is greatly needed to guarantee the phase cancellation condition.…”

Section: Introductionmentioning

confidence: 99%

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Photonic Image-free Mixer Based on a Dual-Parallel Mach-Zehnder Modulator and Fiber Dispersion for Radio-Over-Fiber System

et al. 2019

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In this paper, a simple image rejection mixer based on the dispersion effect in the single mode fiber is proposed and experimentally demonstrated for the radio-over-fiber (RoF) system. The key idea is to control the DC bias voltages of the dual parallel Mach-Zehnder modulator (DPMZM) to compensate for the desired components and eliminate the image induced components simultaneously during the fiber transmission. The experimental results show, the image rejection ratio (IRR) of ∼50 dB is realized, and the spurious free dynamic range (SFDR) is about 100.75 dB•Hz 2/3. In addition, the results also demonstrate an image-free intermediate frequency (IF) range of 0.5 GHz-9.5 GHz. This image-free mixer can be widely employed in the radio-over-fiber (RoF) system, and greatly simplify the receiver structure in the base station.

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“…The Hartley architecture was further evolved to Weaver architecture [4], using a second quadrature mixing stage to solve the phase mismatch problem in the π/2 phase shift network. In addition, in order to break the electronic bottleneck [5], many photonics-based approaches were previously reported to extend the working frequency range and bandwidth [5][6][7][8][9][10][11][12][13][14][15], but almost all of them were implemented based on the Hartley architecture.…”

Section: Introductionmentioning

confidence: 99%

Photonics-enabled balanced Hartley architecture for broadband image-reject microwave mixing

Zhu¹,

Chen²,

Pan³

2018

Opt. Express

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Conventional image-reject mixing based on Hartley and Weaver architectures cannot deal with the mixing spurs generated by the nonlinearity of the mixer, leading to a fundamental restriction on the instantaneous bandwidth and frequency tuning range. This paper proposes and demonstrates a new architecture for broadband image-reject mixing enabled uniquely by photonics. The RF signal and the electrical LO signal are converted into the optical domain and are then launched into the signal and LO ports of a 90-degree optical hybrid, respectively. The optical hybrid coupler introduces 0, π, π/2 and 3π/2 phase shifts to the input signals, so a new dimension for additional balanced detection is enabled, which can dramatically remove the undesirable mixing spurs and the common-mode noises. As a result, the proposed architecture suppresses the downconverted image and the nonlinear mixing spurs simultaneously, enabling a truly wideband microwave frequency mixer. A theoretical and experimental investigation is performed. More than 60-dB image rejection and mixing spur suppression is achieved over a 40-GHz working frequency range.

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Reconfigurable microwave photonic mixer based on dual-polarization dual-parallel Mach–Zehnder modulator

Cited by 24 publications

References 21 publications

Brillouin-Assisted Notch Filtering Based All-Optical Image Rejection Mixer

Brillouin-Assisted Notch Filtering Based All-Optical Image Rejection Mixer

Photonic Image-free Mixer Based on a Dual-Parallel Mach-Zehnder Modulator and Fiber Dispersion for Radio-Over-Fiber System

Photonics-enabled balanced Hartley architecture for broadband image-reject microwave mixing

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