Calibration of a Phase-Shift Formed in a Linearly Chirped Fiber Bragg Grating and Its Thermal Effect

Xian, Lunlun; Li, Hongpu

doi:10.1109/jlt.2013.2245100

Cited by 10 publications

(3 citation statements)

References 25 publications

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“…Additional advantages are their ease of implementation for both point and quasi-distributed measurements, their adaptability to a wide variety of applications such as those in the oil and gas sectors or electromagnetic environments, and their cost-effectiveness. The intrigue in fiber gratings, which are characterized by a periodic modulation of the refractive index within the core or cladding of a fiber along its direction of propagation, has been widespread among scholars globally [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. These fiber gratings are categorically divided based on their operational principles into two main types: fiber Bragg gratings (FBGs) and long-period fiber gratings (LPFGs).…”

Section: Introductionmentioning

confidence: 99%

Mechanically Induced Long-Period Fiber Gratings and Applications

Ran,

Chen,

Wang

et al. 2024

Photonics

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Long-period fiber gratings (LPFGs) functioning as band-reject filters have played a pivotal role in the realm of optical communication. Since their initial documentation in 1996, LPFGs have witnessed rapid advancements in areas such as optical sensing, the equalization of optical amplification, and optical band-pass filtering, etc. The unique attributes of optical fiber-based grating, including their miniaturized size, cost-effectiveness, and immunity to electromagnetic interference, have contributed significantly to various sectors over the last two decades. This paper presents a review of the evolution of LPFGs, with a specific focus on the progression and current trends of mechanically induced long-period fiber gratings. It offers a concise overview of coupled-mode theory, the fabrication processes, the merits, and the limitations associated with mechanically induced LPFGs. Moreover, this review elucidates the application methodologies of mechanically induced LPFGs and anticipates future directions in this field.

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Section: Introductionmentioning

confidence: 99%

Mechanically Induced Long-Period Fiber Gratings and Applications

Ran,

Chen,

Wang

et al. 2024

Photonics

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“…PS-FBG has been successfully applied in single longitudinal mode (SLM) fiber ring laser (FRL) [15,17]. In this paper, the PZT is used to induce phase shift (PS) in CFBG, and the PZT-based PS-CFBG has been successfully applied in SLM FRL [17,18]. For further study, the PZT-based PS-CFBG has been theoretical and experimental analyzed in our previous work [19].…”

Section: Introductionmentioning

confidence: 99%

Q-switched erbium-doped fiber ring laser with piezoelectric transducer-based PS-CFBG

Wu¹,

Li²,

Wang³

et al. 2016

Laser Phys. Lett.

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In this letter, a Q-switched erbium-doped fiber ring laser (EDFRL) with piezoelectric transducer (PZT)-based phase shift chirped fiber Bragg grating (PS-CFBG) has been proposed and demonstrated first. As known, the phase shift can be induced and wiped periodically by applying a modulation signal on the PZT. This makes it possible for the PZT-based PS-CFBG to be used in Q-switched EDFRL. To verify the performance of this Q-switched EDFRL system, some theoretical analyses and experiments have been performed. It is found that, when the PZT is modulated by a signal with frequencies of 1 and 2 kHz, pulse widths of the Q-switched pulse train are 19.8 μs and 15.6 μs, respectively. Besides, the corresponding pulse energies are 1.16 μJ (1 kHz) and 1.91 μJ (2 kHz) with a pump power of 90 mW.

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“…However, the thermal heating method requires electrical power supply to sustain sufficient temperature in the heating element, which is not stable specially to obtain a π-phase shift because of the changing ambient temperature. Moreover, the reported strain methods [11], [12] use expensive electrical power amplifiers to drive the PZT with a high voltage in the range of 150V-180V [13] to obtain a π-phase shift, and the resulted phase shift accuracy is affected by the asymmetric stretching of the PZT [12].…”

Section: Introductionmentioning

confidence: 99%

Simple beam-bending package for tunable phase shift in fiber Bragg gratings

Falah

Mokhtar

Yusoff

2014

2014 IEEE 5th International Conference on Photonics (ICP)

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In this paper, we propose and demonstrate a simple and accurate fiber Bragg grating (FBG) phase shift tuning system using mechanical micro-strain. Continuous phase shift tuning between 0 and π in FBGs based on a low-cost beam bending package is experimentally established. The results indicate that the magnitude of the temporary phase shifts can be easily reconfigured by adjusting the travel distance of a micrometer screw.

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Calibration of a Phase-Shift Formed in a Linearly Chirped Fiber Bragg Grating and Its Thermal Effect

Cited by 10 publications

References 25 publications

Mechanically Induced Long-Period Fiber Gratings and Applications

Mechanically Induced Long-Period Fiber Gratings and Applications

Q-switched erbium-doped fiber ring laser with piezoelectric transducer-based PS-CFBG

Simple beam-bending package for tunable phase shift in fiber Bragg gratings

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