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.

A tunable multi-wavelength Brillouin-erbium linear cavity fiber laser with higher optical signal to noise ratio

Laser Physics ◽  
2018 ◽  
Vol 28 (12) ◽  
pp. 125105
Author(s):  
Lei Ma ◽  
Hui Zou ◽  
Hui Xiong ◽  
Guanhong You ◽  
Yunshan Zhang ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Signal To Noise Ratio ◽  
Optical Signal ◽  
Signal To Noise ◽  
Linear Cavity ◽  
Multi Wavelength ◽  
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 Watt-level ultrahigh-optical signal-to-noise ratio single-longitudinal-mode tunable Brillouin fiber laser

2012 ◽  
Vol 38 (1) ◽  
pp. 19 ◽  
Author(s):  
Gaomeng Wang ◽  
Li Zhan ◽  
Jinmei Liu ◽  
Tao Zhang ◽  
Jun Li ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Signal To Noise Ratio ◽  
Longitudinal Mode ◽  
Optical Signal ◽  
Single Longitudinal Mode ◽  
Signal To Noise ◽  
Noise Ratio

Multiwavelength Coherent Brillouin Random Fiber Laser With Ultrahigh Optical Signal-to-Noise Ratio

2018 ◽  
Vol 24 (3) ◽  
pp. 1-8 ◽  
Author(s):  
Liang Zhang ◽  
Yanping Xu ◽  
Song Gao ◽  
Bhavaye Saxena ◽  
Liang Chen ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Signal To Noise Ratio ◽  
Optical Signal ◽  
Signal To Noise ◽  
Noise Ratio

scholarly journals Graphene slurry based passive Q-switcher in erbium doped fiber laser

2019 ◽  
Vol 8 (4) ◽  
Author(s):  
Siti Nur Fatin Zuikafly ◽  
Nor Farhah Razak ◽  
Rizuan Mohd Rosnan ◽  
Sulaiman Wadi Harun ◽  
Fauzan Ahmad
Keyword(s):  
Pump Power ◽  
Fiber Laser ◽  
Pulse Width ◽  
Peak Power ◽  
Signal To Noise Ratio ◽  
Pulsed Laser ◽  
Laser Cavity ◽  
Signal To Noise ◽  
Maximum Pulse Energy ◽  
Erbium Doped

In this work, a Graphene slurry based passive Q-switcher fabricated from Graphene-Polylactic acid (PLA) filament which is used for 3D printing. To produce the Graphene slurry, the diameter of the filament was reduced and Tetrahydrofuran (THF) was used to dissolve the PLA. The Graphene-THF suspension was drop cast to the end of a fiber ferrule and the THF then evaporated to develop Graphene slurry based SA which is integrated in fiber laser cavity. At threshold input pump power of 30.45 mW, a Q-switched Erbium-doped fiber laser (EDFL) can be observed with the wavelength centered at 1531.01 nm and this remained stable up to a pump power of 179.5 mW. As the pump power was increased gradually, an increase in the repetition rates was recorded from 42 kHz to 125 kHz, while the pulse width was reduced to 2.58 μs from 6.74 μs. The Q-switched laser yielded a maximum pulse energy and peak power of 11.68 nJ and 4.16 mW, respectively. The proposed Graphene slurry based saturable absorber also produced a signal-to-noise ratio of 44 dB indicating a stable Q-switched pulsed laser.

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