Ultra-narrowband notch filtering with highly resonant fiber Bragg gratings

Painchaud, Yves; Aube, M.; Brochu, Guillaume; Picard, Marie-Josée

doi:10.1364/bgpp.2010.btuc3

Cited by 24 publications

(15 citation statements)

References 3 publications

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“…1 is reported here. The PS-FBG is fabricated by introducing a phase shift during the (uniform) FBG fabrication process [4] and is mounted on a piezo-actuated stage. The central wavelength of the transmission band is about 1549.28 nm, with a full-width at half-maximum (FWHM) width of only about 30 MHz, which mainly determines the bandwidth of the equivalent MBPF of the open loop OEO, as shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

Femtometer-Resolution Wavelength Interrogation of a Phase-Shifted Fiber Bragg Grating Sensor Using an Optoelectronic Oscillator

Yao

et al. 2012

Advanced Photonics Congress

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Section: Methodsmentioning

confidence: 99%

Femtometer-Resolution Wavelength Interrogation of a Phase-Shifted Fiber Bragg Grating Sensor Using an Optoelectronic Oscillator

Yao

et al. 2012

Advanced Photonics Congress

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“…The smaller the notch bandwidth of the FBG is, the lower the frequency of the phase-coded signal can be reached. Recently, an ultra-narrow FBG with a notch bandwidth of 9 MHz was reported [13], indicating that the proposed approach can achieve a phase-coded signal with a frequency as low as several MHz. The upper bound of the frequency tuning range is four times the maximum frequency of the drive signal source and the bandwidth of the DPMZM, which can reach 40 GHz in laboratory environment.…”

Section: Introductionmentioning

confidence: 95%

“…After beating the two modulated sidebands in a photodiode (PD), a frequency-quadrupled phase-coded signal is generated. The lowest frequency of the generated signal is half of the notch bandwidth of the FBG, which can be as low as several MHz T [13], while the upper bound of the frequency range is four times the bandwidth of the DPMZM. As a result, a phase-coded signal from several MHz to more than 100 GHz can be possibly generated.…”

Section: Introductionmentioning

confidence: 99%

Generation of a Frequency-Quadrupled Phase-Coded Signal With Large Tunability

Zhao

Zhang

et al. 2016

IEEE Photon. Technol. Lett.

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Abstract-A photonic approach for frequency-quadrupled phase-coded signal generation with large tunability is proposed and demonstrated. In the proposed scheme, a dual-parallel Mach-Zehnder modulator is used to generate two second-order optical sidebands, which are made orthogonally polarized in a Sagnac loop incorporating a fiber Bragg grating. Then, a polarization modulator is employed to perform phase coding with high coding rate. A distinct advantage of this approach is the capability to generate a phase-coded signal with a large frequency tuning range, from several MHz to more than 100 GHz. A proof-of-concept experiment is carried out. The generation of a 2.5-Gbit/s phase-coded signal with a frequency tuning from 13 to 30 GHz is experimentally verified.

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“…Since the notch of the PS-FBG can be controlled as narrow as a few MHz [15], accordingly the bandwidth of the microwave photonic BPF can be as narrow as a few MHz, thus a microwave photonic BPF with a high-Q factor is achieved. The tunability of the microwave photonic BPF can be easily realized by simply tuning the wavelength of the light wave from the TLS.…”

Section: Principle Of Operationmentioning

confidence: 99%

A Wideband Frequency Tunable Optoelectronic Oscillator Incorporating a Tunable Microwave Photonic Filter Based on Phase-Modulation to Intensity-Modulation Conversion Using a Phase-Shifted Fiber Bragg Grating

Yao

2012

IEEE Trans. Microwave Theory Techn.

188

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An optically tunable optoelectronic oscillator (OEO) with a wide frequency tunable range incorporating a tunable microwave photonic filter implemented based on phase-modulation to intensity-modulation conversion using a phase-shifted fiber Bragg grating (PS-FBG) is proposed and experimentally demonstrated. The PS-FBG in conjunction with two optical phase modulators in the OEO loop form a high-Q, wideband and frequency-tunable microwave photonic bandpass filter, to achieve simultaneously single-frequency selection and frequency tuning. Since the tuning of the microwave filter is achieved by tuning the wavelength of the incident light wave, the tunability can be easily realized at a high speed. A theoretical analysis is performed, which is verified by an experiment. A microwave signal with a frequency tunable from 3 GHz to 28 GHz is generated. To the best of our knowledge, this is the widest frequency tunable range ever achieved by an OEO. The phase noise performance of the OEO is also investigated.

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Ultra-narrowband notch filtering with highly resonant fiber Bragg gratings

Cited by 24 publications

References 3 publications

Femtometer-Resolution Wavelength Interrogation of a Phase-Shifted Fiber Bragg Grating Sensor Using an Optoelectronic Oscillator

Femtometer-Resolution Wavelength Interrogation of a Phase-Shifted Fiber Bragg Grating Sensor Using an Optoelectronic Oscillator

Generation of a Frequency-Quadrupled Phase-Coded Signal With Large Tunability

A Wideband Frequency Tunable Optoelectronic Oscillator Incorporating a Tunable Microwave Photonic Filter Based on Phase-Modulation to Intensity-Modulation Conversion Using a Phase-Shifted Fiber Bragg Grating

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