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Journal ArticleDOI

Photonic generation of microwave signal using a dual-wavelength single-longitudinal-mode fiber ring laser

TLDR
In this article, a dual-wavelength fiber Bragg grating (FBG) with two ultranarrow transmission bands in combination with a regular FBG is used to ensure single-longitudinal mode operation of the fiber ring laser.
Abstract
A novel approach for the generation of high-frequency microwave signals using a dual-wavelength single-longitudinal-mode fiber ring laser is proposed and demonstrated. In the proposed configuration, a dual-wavelength fiber Bragg grating (FBG) with two ultranarrow transmission bands in combination with a regular FBG is used to ensure single-longitudinal-mode operation of the fiber ring laser. A semiconductor optical amplifier is employed as the gain medium in the ring cavity. Since the two lasing wavelengths share the same gain cavity, the relative phase fluctuations between the two wavelengths are low and can be used to generate a low-phase-noise microwave signal without need of a microwave reference source. Three dual-wavelength ultranarrow transmission-band FBGs with wavelength spacing of 0.148, 0.33, and 0.053 nm are respectively incorporated into the laser. Microwave signals at 18.68, 40.95, and 6.95 GHz are obtained by beating the dual wavelengths at a photodetector. The spectral width of the generated microwave signals as small as 80 kHz with a frequency stability better than 1 MHz in the free-running mode at room temperature is obtained.

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Citations
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Proceedings ArticleDOI

An optically controlled microwave phase stabilizer based on polarization interference technique using semiconductor optical amplifier

TL;DR: In this paper, an optically controlled microwave phase stabilizer based on polarization interference technique using single-semiconductor optical amplifier (SOA) was proposed, which provides a stable phase drift that can be linearly compensated over 10 km single-mode fiber by controlling the SOA injection current.
Journal ArticleDOI

Robust full‐duplex ROF system

TL;DR: In this paper, the authors presented a simple and robust full-duplex radio-over-fiber (ROF) system using two laser sources with efficient laser frequency stability control enlarging the reliability of the whole system with automatic operation.

Slow Light for Microwave Photonics Applications Invited Paper

TL;DR: In this paper, the photonic crystal approach is presented as a promising approach to slow light-based microwave photonics devices, and the peculiar design flexibility of this approach is demonstrated with a series of simulations.
Journal ArticleDOI

Tunable microwave generation using dual-wavelength Brillouin O-band fiber laser

TL;DR: In this article, a dual-wavelength fiber laser with a tunable output for generating microwave signals is proposed and demonstrated, where the system utilizes stimulated Brillouin scattering inside a dispersion compensating fiber to generate the desired dualwavelength output, which then beats to form the desired microwave frequency.
Proceedings ArticleDOI

RF signal generation, hopping and switching based on negative wavelength detuning in SMFP-LDs

TL;DR: In this article, the authors discuss the use of single mode Fabry-Perot laser diode (SMFP-LD) for signal generation, hopping and the switching of RF signal.
References
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Journal ArticleDOI

Optical generation of very narrow linewidth millimetre wave signals

TL;DR: In this article, a novel method for the optical generation and distribution of millimetre waves is described, which is demonstrated at 36 GHz and an electrical linewidth limited by the resolution bandwidth of the spectrum analyser is achieved.
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

Remote delivery of video services using mm-waves and optics

TL;DR: In this paper, the advantages of a radio-based final drop for video delivery are outlined and spectral availability constraints that lead to the identification of the mm-wave region of the radio spectrum as the most appropriate for this application are discussed.
Journal ArticleDOI

6–34 GHz offset phase-locking of Nd:YAG 1319 nm nonplanar ring lasers

TL;DR: In this article, offset phase-locking of two Nd:YAG nonplanar ring laser by electronic feedback was reported, and the difference frequency was continuously tunable in three bands from 6 to 34 GHz and exhibits a hold-in range and linewidth of 82 MHz and < 1 mHz, respectively.
Journal ArticleDOI

Ultranarrow dual-transmission-band fiber Bragg grating filter and its application in a dual-wavelength single-longitudinal-mode fiber ring laser

TL;DR: Dual-wavelength single-longitudinal-mode lasing with a wavelength spacing as small as 0.147 nm at room temperature is experimentally demonstrated.
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