Dual-wavelength Brillouin ring-cavity fiber laser with tunable channel spacing

Zhou, Xuefang; Miao, Xuefeng; Liang, G.; Yuan, Shuo; Jiang, Lingjun; Wang, T.

doi:10.1134/s1054660x12050398

Cited by 7 publications

(7 citation statements)

References 15 publications

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“…Pump light and first Stokes lasing light was used to beat microwave signal. So the SNR and linewidth of microwave signal are greater than the previous results .…”

Section: Resultscontrasting

confidence: 66%

“…And the dual‐wavelength output of Brillouin fiber laser (BFL) can be used to generate microwave signal because of its narrow width and stable wavelengths spacing. However, erbium‐doped fiber amplifier (EDFA) in most of the BFL schemes reported usually increases the phase noises and broadens the narrow linewidth of the microwave signal , and side modes in output of BFL also affect the quality of microwave signal .…”

Section: Introductionmentioning

confidence: 99%

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Stable microwave generation based on a brillouin fiber laser with saturable absorber

Zhang

Dong

Wanzhe

et al. 2014

Micro & Optical Tech Letters

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A simple approach to generate stable microwave signals by heterodyning pump light and Stokes lasing light from a dual‐wavelength Brillouin fiber laser is proposed and demonstrated. A 10‐km‐long single mode fiber is used as the Brillouin gain medium, and an ultranarrow linewidth distributed feedback laser is used as Brillouin pump, while a 4‐m‐long unpumped polarization maintaining erbium‐doped fiber and subring cavity suppress unwanted side modes. A 10.7 GHz microwave signal is detected by photodetector and the signal linewidth is about 300 kHz. Signal to noise ratio of the microwave signal is about 50 dB. The power and frequency of microwave signal is highly stable, with almost no fluctuations over the test period. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1513–1516, 2014

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“…Pump light and first Stokes lasing light was used to beat microwave signal. So the SNR and linewidth of microwave signal are greater than the previous results .…”

Section: Resultscontrasting

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Stable microwave generation based on a brillouin fiber laser with saturable absorber

Zhang

Dong

Wanzhe

et al. 2014

Micro & Optical Tech Letters

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“…Brillouin scattering has been demonstrated as a versatile tool in studying transparent media, such as optical fibers [1][2][3], air [4][5][6][7][8] and water [9][10][11]. The spectrum accuracy obtained from Brillouin scattering is important since the spectrum characteristics are related to many physical properties of the studied media.…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis on the rapid measurement of a high precision Brillouin scattering spectrum in water using a Fabry–Pérot etalon

Zhang¹,

Fan²,

Ma³

et al. 2016

Laser Phys. Lett.

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The Brillouin lidar system with a Fabry-Pérot (F-P) etalon has been widely used in remote sensing to study ocean characteristics such as temperature, sound speed, etc. In this system, the measurement error stemming from the spectral broadening of an F-P etalon was typically neglected in applications where high measurement accuracy was not essential. In this paper, an integration method on radius and a convolution method on frequency are proposed to remove the broadening effect and improve the measurement accuracy, respectively. Experiments of underwater Brillouin scattering show that both fitting methods effectively reduce the measurement error due to the transmission function of an F-P etalon. A temperature accuracy of 0.1 °C and a salinity accuracy of 0.5‰ were achieved. Moreover, with the convolution method, the computational cost was reduced to 3 s, which enables rapid measurement of Brillouin shift and linewidth and makes the on-line remote sensing applications possible.

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“…Dual-wavelength single-frequency erbium-doped fiber (EDF) lasers (EDFLs) have attracted great interest in recent years because of their potential advantages in applications such as fiber sensing, optical signal processing, radio-over-fiber communication systems, radar systems and photonic generation of microwave signals [1][2][3][4][5][6][7][8][9][10]. Single-frequency dual-wavelength EDFLs, with tunable wavelength spacing, have been considered a valuable source of microwave or millimeter-wave generation, and even for terahertz-wave radiation [3,4,[8][9][10].…”

Section: Introductionmentioning

confidence: 99%

A switchable and wavelength-spacing tunable single-frequency and single-polarization dual-wavelength erbium-doped fiber laser based on a compound-cavity structure

et al. 2014

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A switchable and wavelength-spacing tunable single-frequency and single-polarization dual-wavelength erbium-doped fiber laser is proposed and demonstrated experimentally. The fiber laser is composed of a main linear cavity and two subring cavities. In dual-wavelength operation, the wavelength spacing can be tuned from 0.430 nm to 4.487 nm, showing that the fiber laser can be used for photonic generation of a microwave signal with a tunable frequency range from 54 GHz to 563 GHz; in single-wavelength operation, the fiber laser can either work at a fixed wavelength of 1544.108 nm or work at a wavelength with a tunable range of 4.057 nm, from 1544.538 nm to 1548.595 nm. The linewidths of two wavelengths are approximately 760 Hz and 810 Hz respectively. The polarization-extinction ratios of the laser outputs, both in dual-and single-wavelength operation, are higher than 30 dB.

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Dual-wavelength Brillouin ring-cavity fiber laser with tunable channel spacing

Cited by 7 publications

References 15 publications

Stable microwave generation based on a brillouin fiber laser with saturable absorber

Stable microwave generation based on a brillouin fiber laser with saturable absorber

Experimental analysis on the rapid measurement of a high precision Brillouin scattering spectrum in water using a Fabry–Pérot etalon

A switchable and wavelength-spacing tunable single-frequency and single-polarization dual-wavelength erbium-doped fiber laser based on a compound-cavity structure

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