Journal ArticleDOI
A Photonic Microwave Frequency Quadrupler Using Two Cascaded Intensity Modulators With Repetitious Optical Carrier Suppression
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TLDR
In this article, the authors theoretically analyzed and experimentally demonstrated a novel 4-to 40-GHz frequency quadrupler for radio-over-fiber (ROF) systems.Abstract:
We theoretically analyzed and experimentally demonstrated a novel 4- to 40-GHz frequency quadrupler for radio-over- fiber systems. By using an optical carrier suppression modulation scheme in two cascaded intensity modulators, four-fold microwave or millimeter wave signals are optically generated without the need for an optical and electrical notch filter to remove the residual carrier components. Moreover, the limitation of high drive voltage is greatly reduced through tandem intensity modulation with pi/2 phase shift between two driving signals.read more
Citations
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Journal Article
Microwave Photonics
TL;DR: In this paper, techniques developed in the last few years in microwave photonics are reviewed with an emphasis on the systems architectures for photonic generation and processing of microwave signals, photonic true-time delay beamforming, radio-over-fiber systems, and photonic analog-to-digital conversion.
Proceedings Article
Microwave photonics
TL;DR: In this paper, microwave photonics techniques developed in the past few years will be reviewed, with an emphasis on system architectures for microwave applications.
Journal ArticleDOI
Photonics-Based Broadband Microwave Measurement
Shilong Pan,Jianping Yao +1 more
TL;DR: Techniques for photonics-based broadband and high-speed microwave measurement are discussed with an emphasis on the system architectures for microwave signal parameter measurement and object property identification.
Journal ArticleDOI
Investigation of Photonically Assisted Microwave Frequency Multiplication Based on External Modulation
Wangzhe Li,Jianping Yao +1 more
TL;DR: In this article, a generalized approach to achieving microwave frequency multiplication using two cascaded MZMs is presented, and a theoretical analysis leading to the operating conditions to achieve frequency quadrupling, sextupling, or octupling is developed.
Journal ArticleDOI
Microwave Generation Based on Optical Domain Microwave Frequency Octupling
Wangzhe Li,Jianping Yao +1 more
TL;DR: In this article, a novel approach to achieving microwave frequency octupling in the optical domain is proposed and demonstrated, which consists of two cascaded Mach-Zehnder modulators that are both biased at the maximum transmission point, with a tunable optical phase shifter connected in between to introduce a phase shift.
References
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Journal ArticleDOI
Microwave signal generation with injection-locked laser diodes
TL;DR: Heterodyne detection of the light from two slave lasers injection locked to FM sidebands of a modulated master laser is used to generate a narrowband microwave signal at 10.5 GHz.
Journal ArticleDOI
Generation and distribution of a wide-band continuously tunable millimeter-wave signal with an optical external modulation technique
TL;DR: In this article, a new technique to generate and distribute a wide-band continuously tunable millimeter-wave signal using an optical external modulator and a wavelength-fixed optical notch filter is proposed.
Journal ArticleDOI
Fibre-supported optical generation and delivery of 60 GHz signals
J.J. O'Reilly,Phil Lane +1 more
TL;DR: In this paper, a novel frequency quadrupling technique for the optical generation and delivery via fiber of modulated 60 GHz band millimetre-wave signals is described, and demonstrated experimentally with a high spectral purity 60 GHz signal obtained using a 15 GHz source and optical modulator.
Journal ArticleDOI
Stable Dual-Wavelength DFB Fiber Laser With Separate Resonant Cavities and Its Application in Tunable Microwave Generation
TL;DR: In this paper, a single longitudinal-mode dual-wavelength distributed feedback fiber laser with a wavelength spacing of 0.312 nm is proposed and demonstrated based on two spatially separated resonant cavities in a single fiber Bragg grating made by a simple method.
Journal ArticleDOI
Optical generation of a megahertz-linewidth microwave signal using semiconductor lasers and a discriminator-aided phase-locked loop
F.Z. Fan,Mario Dagenais +1 more
TL;DR: In this article, a discriminator-aided optical phase-locked loop (OPLL) with significantly enhanced frequency acquisition capability is presented, whose pull-in range is measured to be 300 MHz and can be easily extended further.