Monitoring of Optical Signal-to-Noise Ratio using Polarization Maintaining Fiber Bragg Grating

2007 ◽  
Author(s):  
K. K. Qureshi ◽  
L. Chao ◽  
P. K. A. Wai ◽  
Xinyong Dong ◽  
H. Y. Tam
Keyword(s):  
Fiber Bragg Grating ◽  
Signal To Noise Ratio ◽  
Optical Signal ◽  
Bragg Grating ◽  
Signal To Noise ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining ◽  
Noise Ratio

Fiber Bragg grating based linear cavity fibre laser temperature sensor with enhanced optical signal-to-noise ratio

Laser Physics ◽  
2019 ◽  
Vol 30 (1) ◽  
pp. 015101 ◽  
Author(s):  
Nurul Atika Nabila Jaharudin ◽  
Noran Azizan Cholan ◽  
Mohd Azwadi Omar ◽  
Rahmat Talib ◽  
Nor Hafizah Ngajikin
Keyword(s):  
Fiber Bragg Grating ◽  
Temperature Sensor ◽  
Signal To Noise Ratio ◽  
Optical Signal ◽  
Fibre Laser ◽  
Bragg Grating ◽  
Signal To Noise ◽  
Linear Cavity ◽  
Noise Ratio

scholarly journals Heavy Metal Cation Probe with Signal to Noise Ratio Measurement of Fiber Bragg Grating

2016 ◽  
Vol 140 ◽  
pp. 67-71 ◽  
Author(s):  
Jingyi Yang ◽  
Li Han Chen ◽  
Xinyong Dong ◽  
R. Raghunandhan ◽  
Chi Chiu Chan
Keyword(s):  
Heavy Metal ◽  
Fiber Bragg Grating ◽  
Metal Cation ◽  
Signal To Noise Ratio ◽  
Bragg Grating ◽  
Heavy Metal Cation ◽  
Signal To Noise ◽  
Ratio Measurement ◽  
Noise Ratio

scholarly journals Improving the Signal-to-Noise Ratio of Time Domain Fiber Bragg Grating Sensor Based on Hybrid Simplex and Golay Coding Technique

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 167089-167098
Author(s):  
Mohamed M. Elgaud ◽  
Mohd Saiful Dzulkefly Zan ◽  
Abdulfatah Abushagur Ghaith ◽  
Ahmad Ashrif A. Bakar ◽  
Norhana Arsad ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Time Domain ◽  
Signal To Noise Ratio ◽  
Fiber Bragg Grating Sensor ◽  
Bragg Grating ◽  
Signal To Noise ◽  
Noise Ratio ◽  
Bragg Grating Sensor

Correlation of Brillouin Stokes Signals and Optical-Signal-to-Noise-Ratio in Multi-Wavelength Brillouin Fiber Laser with Additional Fiber Bragg Grating

2016 ◽  
Vol 857 ◽  
pp. 560-564 ◽  
Author(s):  
A. Zakiah Malek ◽  
N.A.M. Ahmad Hambali ◽  
M.H.A. Wahid ◽  
M.M. Shahimin ◽  
M.A.M. Azidin
Keyword(s):  
Pump Power ◽  
Fiber Laser ◽  
Fiber Bragg Grating ◽  
Ring Resonator ◽  
Signal To Noise Ratio ◽  
Optical Signal ◽  
Signal To Noise ◽  
Brillouin Pump ◽  
Multi Wavelength ◽  
Noise Ratio

We experimentally demonstrate unidirectional propagation of multi-wavelength Brillouin fiber laser system with additional fiber Bragg grating. The configuration is arranged in a ring resonator by utilizing five different Brillouin gain mediums. In this experiment, the input Brillouin pump power was varied in order to maximize the generated Brillouin Stokes signals based on the respective fiber lengths. The influence of these controllable parameters leads to the correlation between of Brillouin Stokes signals and optical-signal-to-noise-ratio. In this case, at 10 km of single mode fiber the maximum of 38 Brillouin Stokes signals were generated together with 15.07 dB of average optical-signal-to-noise-ratio when the 17 dBm Brillouin pump power was launched into the ring resonator.

Tunable and switchable fiber laser based on modal interference

2015 ◽  
Vol 29 (09) ◽  
pp. 1550033 ◽  
Author(s):  
Lin Ma ◽  
Jiang Sun ◽  
Yanhui Qi ◽  
Zexin Kang ◽  
Shuisheng Jian
Keyword(s):  
Fiber Laser ◽  
Signal To Noise Ratio ◽  
Polarization Controller ◽  
Signal To Noise ◽  
The Core ◽  
Erbium Doped ◽  
Modal Interference ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining ◽  
Noise Ratio

A tunable and switchable erbium-doped fiber (EDF) laser based on modal interference has been proposed and experimentally demonstrated in this paper. Here a core-offset structure has been used to excite the cladding modes and a segment of polarization maintaining fiber inserted in a Sagnac loop interferometer has been used as wavelength selective component. By adjusting the statement of polarization controller (PC) and the bending of the core-offset structure, a tunable and switchable fiber laser with the signal-to-noise ratio (SNR) of more than 50 dB has been achieved in this paper.

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