Photonic High-Bandwidth RF Splitter With Arbitrary Amplitude and Phase Offset

Zhuang, Leimeng; Corcoran, Bill; Zhu, Chen; Lowery, Arthur J.

doi:10.1109/lpt.2014.2349010

Cited by 11 publications

(6 citation statements)

References 18 publications

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“…In practice, a dual-parallel MZ modulator can be used to provide the desired optical spectrum with either in-phase or complementary-phase sidebands (Fig. 3) by controlling the modulator biases [40,41]. Moreover, the programmability of the chip also allows us to implement an RF filter using a conventional microwave photonic approach based on single-sideband modulation [42], where the chip is programmed into an optical filter [e.g., a notch filter as in Fig.…”

Section: Rf Filter Implementationmentioning

confidence: 99%

Programmable photonic signal processor chip for radiofrequency applications

Zhuang

Roeloffzen²,

Hoekman

et al. 2015

Optica

Self Cite

376

280

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Integrated microwave photonics, an emerging technology combining radio frequency (RF) engineering and integrated photonics, has great potential to be adopted for wideband analog processing applications. However, it has been a challenge to provide photonic integrated circuits with equal levels of function flexibility as compared with their electronic counterparts. Here, we introduce a disruptive approach to tackle this need, which is analogous to an electronic field-programmable gate array. We use a grid of tunable Mach-Zehnder couplers interconnected in a two-dimensional mesh network, each working as a photonic processing unit. Such a device is able to be programmed into many different circuit topologies and thereby provide a diversity of functions. This paper provides, to the best of our knowledge, the first ever demonstration of this concept and shows that a programmable chip with a free spectral range of 14 GHz enables RF filters featuring continuous, over-two-octave frequency coverage, i.e., 1.6-6 GHz, and variable passband shaping ranging from a 55 dB extinction notch filter to a 1.6 GHz bandwidth flat-top filter.

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Section: Rf Filter Implementationmentioning

confidence: 99%

Programmable photonic signal processor chip for radiofrequency applications

Zhuang

Roeloffzen²,

Hoekman

et al. 2015

Optica

Self Cite

376

280

View full text Add to dashboard Cite

show abstract

“…Recently, 1 Â 2 microwave photonic splitter (MPS) with arbitrary amplitude and relative phase offset between the two outputs has been reported [3]. Many applications can benefit from the MPS that has large instantaneous bandwidth, such as multi-tap microwave photonic filters (MPFs), complex microwave signal detection in radars, and analog encryption in RF signal dissemination systems [4]- [6].…”

Section: Introductionmentioning

confidence: 99%

“…It is worth noticing that the 1 Â 2 MPS reported in [3] requires two independent laser diodes (LDs) with different wavelengths. In order to expand the 1 Â 2 MPS to a 1 Â N MPS, N LDs are needed, which makes the MPS bulky and expensive.…”

Section: Introductionmentioning

confidence: 99%

“…In order to expand the 1 Â 2 MPS to a 1 Â N MPS, N LDs are needed, which makes the MPS bulky and expensive. The use of DPMZM in [3] suffers from large insertion loss, complicated bias control, and bias drifting problem. Moreover, this configuration can only achieve a relative phase shift between the two outputs of the 1 Â 2 MPS.…”

Section: Introductionmentioning

confidence: 99%

“…Compared with the method reported in [3], the absolute phase shift for each branch is independently tunable, which makes it possible to expand the system to a 1 Â N MPS. Moreover, the 1 Â N MPS is easily realized by optical power splitting, which is cost effective.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Broadband Microwave Photonic Splitter With Arbitrary Amplitude Ratio and Phase Shift

Wang

Zhu

2014

IEEE Photonics J.

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We report a broadband 1 Â N microwave photonic splitter (MPS) with arbitrary amplitude ratio and phase shift. The key devices used in the MPS are a polarization modulator (PolM), an optical bandpass filter (OBPF), polarization controllers (PCs), and polarizers (Pols). The cascaded PolM and OBPF generate an orthogonally polarized single-sideband modulated optical signal. The phase difference between the two orthogonal components and the state of polarization of the optical signal can be adjusted by the PC independently. After the polarization-to-intensity modulation conversion by the Pol, the microwave is recovered in the PD. The amplitude and phase of the microwave signal can be independently tuned by adjusting the three plates of the PC. The proposed MPS is theoretically analyzed and experimentally verified. Broadband MPS with bandwidth from 8 to 40 GHz is successfully achieved. In addition, we apply the proposed MPS to a two-tap microwave photonic filter (MPF). The notch position and depth of the MPF are tunable by adjusting the phase shift and amplitude ratio between the two optical branches, respectively.

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Radio-frequency design of a new C-band variable power splitter

Fang

et al. 2019

NUCL SCI TECH

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Photonic High-Bandwidth RF Splitter With Arbitrary Amplitude and Phase Offset

Cited by 11 publications

References 18 publications

Programmable photonic signal processor chip for radiofrequency applications

Programmable photonic signal processor chip for radiofrequency applications

Broadband Microwave Photonic Splitter With Arbitrary Amplitude Ratio and Phase Shift

Radio-frequency design of a new C-band variable power splitter

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