Multi-resonance peaks fiber Bragg gratings based on largely-chirped structure

Chen, Chao; Zhang, Xuanyu; Wei, Wei-Hua; Chen, Yongyi; Qin, Li; Yu, Yong‐Sen

doi:10.1016/j.optcom.2017.12.004

Cited by 3 publications

(2 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is worth mentioning that the generation of multipeak behavior is also sensitive to the grating orders, as first-order FBG (FBG 1) showed only one peak. A similar situation was found in largely chirped-structure FBGs [26]. Further investigation will be conducted in future work.…”

Section: Resultssupporting

confidence: 74%

Point-by-Point Induced High Birefringence Polymer Optical Fiber Bragg Grating for Strain Measurement

et al. 2023

View full text Add to dashboard Cite

In this paper, the first- and fourth-order fiber Bragg grating (FBG)-based axial strain sensors are proposed. The FBGs are inscribed in step-index polymer optical fibers (POFs) (TOPAS core and ZEONEX cladding) via the point-by-point (PbP) direct-writing technique. A first-order FBG with a single peak is obtained with a pulse fluence of 7.16 J/cm2, showing a strain sensitivity of 1.17 pm/με. After that, a fourth-order FBG with seven peaks is obtained with a pulse fluence of 1.81 J/cm2 with a strain sensitivity between 1.249 pm/με and 1.296 pm/με. With a higher fluence of 2.41 J/cm2, a second fourth-order FBG with five peaks is obtained, each of which is split into two peaks due to high birefringence (Hi-Bi) of ~5.4 × 10−4. The two split peaks present a strain sensitivity of ~1.44 pm/με and ~1.55 pm/με, respectively. The peak difference corresponding to Hi-Bi presents a strain sensitivity of ~0.11 pm/με and could potentially be used for simultaneous dual-parameter measurement, such as temperature and strain.

show abstract

Section: Resultssupporting

confidence: 74%

Point-by-Point Induced High Birefringence Polymer Optical Fiber Bragg Grating for Strain Measurement

et al. 2023

View full text Add to dashboard Cite

show abstract

“…To maintain a high SMSR after multistage power amplification, background noise sidelobes need to be suppressed, and the apodized FBG is designated as the frequency selection element. The femtosecond laser direct writing method [ 25 , 26 ] can more flexibly fabricate apodized FBGs with different apodization function distributions than the phase mask and holographic interference methods. Figure 1 b is an example to demonstrate the flexibility of femtosecond laser energy regulation method and prepare a small segment of apodized refractive index modulation grating structure.…”

Section: Experiments Processmentioning

confidence: 99%

A 1-μm-Band Injection-Locked Semiconductor Laser with a High Side-Mode Suppression Ratio and Narrow Linewidth

Chen

Guo

et al. 2022

Sensors

Self Cite

View full text Add to dashboard Cite

We demonstrate a narrow-linewidth, high side-mode suppression ratio (SMSR) semiconductor laser based on the external optical feedback injection locking technology of a femtosecond-apodized (Fs-apodized) fiber Bragg grating (FBG). A single frequency output is achieved by coupling and integrating a wide-gain quantum dot (QD) gain chip with a Fs-apodized FBG in a 1-μm band. We propose this low-cost and high-integration scheme for the preparation of a series of single-frequency seed sources in this wavelength range by characterizing the performance of 1030 nm and 1080 nm lasers. The lasers have a maximum SMSR of 66.3 dB and maximum output power of 134.6 mW. Additionally, the lasers have minimum Lorentzian linewidths that are measured to be 260.5 kHz; however, a minimum integral linewidth less than 180.4 kHz is observed by testing and analyzing the power spectra of the frequency noise values of the lasers.

show abstract

Wavelength tunable fiber Bragg gratings fabricated by stress annealing assisted femtosecond laser direct writing

Sun

Chang

Zeng

et al. 2021

Optical Fiber Technology

View full text Add to dashboard Cite

Multi-resonance peaks fiber Bragg gratings based on largely-chirped structure

Cited by 3 publications

References 30 publications

Point-by-Point Induced High Birefringence Polymer Optical Fiber Bragg Grating for Strain Measurement

Point-by-Point Induced High Birefringence Polymer Optical Fiber Bragg Grating for Strain Measurement

A 1-μm-Band Injection-Locked Semiconductor Laser with a High Side-Mode Suppression Ratio and Narrow Linewidth

Wavelength tunable fiber Bragg gratings fabricated by stress annealing assisted femtosecond laser direct writing

Contact Info

Product

Resources

About