Generation of Step-Tunable Microwave Signal Using a Multiwavelength Brillouin Fiber Laser

Liu, Jinmei; Zhan, Li; Xiao, Pingping; Wang, Gaomeng; Zhang, Liang; Liu, Xuesong; Peng, Junsong; Shen, Qishun

doi:10.1109/lpt.2012.2234448

Cited by 18 publications

(5 citation statements)

References 21 publications

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“…Tunable ultra-narrow linewidth microwave generation from a double-loop Brillouin fiber laser microwave frequency [11,12]. In some cases, using the short cavity has some drawbacks, such as a high pump threshold for higher order Stokes.…”

Section: Laser Physicsmentioning

confidence: 99%

Tunable ultra-narrow linewidth microwave generation from a double-loop Brillouin fiber laser

Zhang

Jia

et al. 2014

Laser Phys.

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A simple photonic approach to generate an ultra-narrow linewidth microwave signal is proposed and experimentally demonstrated. In this scheme, a multi-wavelength Brillouin fiber laser (BFL) with a double-loop and un-pumped polarization maintaining erbium doped fiber (PM-EDF) is used. The double-loop configuration includes a 50 m long single-mode fiber (SMF) and a 10 m long SMF as Brillouin gain. The threshold and linewidth of the microwave source can be improved by using a double loop, while a 4 m long un-pumped PM-EDF is used to suppress unwanted side-modes. A dual-wavelength optical signal is heterodyned at the high-speed photo detector to produce a microwave signal by adjusting the polarization controller and the wavelength of the Brillouin pump. As a result, a tunable microwave signal from 10.605 to 10.887 GHz can be obtained. The linewidth of the microwave signal is about 14.4 kHz, and the side-mode suppression ratio is about 30 dB.

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Section: Laser Physicsmentioning

confidence: 99%

Tunable ultra-narrow linewidth microwave generation from a double-loop Brillouin fiber laser

Zhang

Jia

et al. 2014

Laser Phys.

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“…Microwave signal sources generated by optical approach with low phase noise, narrow linewidth, and high stability are valuable in many potential applications, such as wireless communications , radio‐over‐fiber (ROF) . Many techniques have been proposed to achieve dual‐wavelength oscillations, such as incorporating arrayed waveguide gratings (AWG) as the wavelength selective elements , or tunable narrow bandwidth filter , a pair of fiber Bragg gratings (FBG) , a chirped moiré fiber Bragg grating , inserting dual‐pass Mach‐Zehnder interferometer , or special laser . Recently, results achieving stable dual‐wavelength laser are mostly based on stimulated Brillouin scattering .…”

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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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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“…Compared with other microwave generation approaches such as optical injection locking [3], optical phase-lock loop [4], and external modulation [5], a dual-wavelength signal is particularly suitable for a generating microwave signal [6,7]. And generating microwave signals by the optical heterodyning method based on the Brillouin fiber laser (BFL) has been considered to be an effective method.…”

Section: Introductionmentioning

confidence: 99%

“…Tunable microwave signals in small tuning range can be achieved by using a fiber strain controller, a tunable pump laser, or a temperature controller [9,10,14]. And channel filtering from multiwavelength BFL is also a possible approach to produce a dual-wavelength output [7,15]. In order to apply channel filtering techniques, the filter must have a steep guard band to 1559-128X/14/112352-05$15.00/0 © 2014 Optical Society of America select the signal used.…”

Section: Introductionmentioning

confidence: 99%

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Frequency switched narrow linewidth microwave signal photonic generation based on a double-Brillouin-frequency spaced fiber laser

Zhang¹,

Jia

Sun

et al. 2014

Appl. Opt.

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A simple photonic approach to generate microwave frequency switched microwave signal is proposed and experimentally demonstrated. In this scheme, a Brillouin fiber laser with double-Brillouin-frequency spacing is used. The Brillouin ring configuration suppresses incoming Brillouin pump and even-order Stokes signals in the cavity. In addition, it also allows propagation of the odd-order Brillouin Stokes signals from configuration to output coupler. A dual-wavelength optical signal is heterodyned at the high-speed photodetector to produce a microwave signal. Frequency switched microwave signals, at 10.75 and 21.39 GHz, respectively, can be obtained through adjusting the polarization controller (PC) and loss of the variable optical attenuator (VOA).

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Generation of Step-Tunable Microwave Signal Using a Multiwavelength Brillouin Fiber Laser

Cited by 18 publications

References 21 publications

Tunable ultra-narrow linewidth microwave generation from a double-loop Brillouin fiber laser

Tunable ultra-narrow linewidth microwave generation from a double-loop Brillouin fiber laser

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

Frequency switched narrow linewidth microwave signal photonic generation based on a double-Brillouin-frequency spaced fiber laser

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