Lasing characteristics of 10 GHz signal spacing in a ring cavity multi-wavelength Brillouin fiber laser employing fiber Bragg grating

2016 ◽  
Vol 25 (04) ◽  
pp. 1650049 ◽  
Author(s):  
A. Zakiah Malek ◽  
N. A. M. Ahmad Hambali ◽  
M. H. A. Wahid ◽  
M. M. Shahimin
Keyword(s):  
Fiber Laser ◽  
Fiber Bragg Grating ◽  
Brillouin Scattering ◽  
Ring Cavity ◽  
Single Mode ◽  
Gain Medium ◽  
Single Mode Fiber ◽  
Bragg Grating ◽  
Output Coupling ◽  
Multi Wavelength

This paper experimentally demonstrated a ring cavity multi-wavelength Brillouin fiber laser employing fiber Bragg grating (FBG) that operated in the C-band region. The FBG plays a significant role to reflect signals and filter selected wavelengths. A number of generated Brillouin Stokes (BS) signals and tuning range ability were investigated. A 9[Formula: see text]km length of single mode fiber was utilized to provide a Brillouin gain medium for generating stimulated Brillouin scattering effect. In this work, at optimum output coupling ratio of 90% and Brillouin pump (BP) wavelength of 1550[Formula: see text]nm, up to a maximum of 26 BS signals were recorded by injecting 63.1[Formula: see text]mW of amplified BP powers. The BS signals were also tunable within the ranges of 1544–1556[Formula: see text]nm in accordance with the FBG properties at 3[Formula: see text]dBm bandwidth of 5[Formula: see text]nm.

Fiber Length Optimization of Ring Cavity Multi-Wavelength Brillouin Fiber Laser Utilizing Fiber Bragg Grating

2015 ◽  
Vol 815 ◽  
pp. 343-347 ◽  
Author(s):  
A. Zakiah Malek ◽  
N.A.M. Ahmad Hambali ◽  
M.H.A. Wahid ◽  
M.A.M. Azidin ◽  
Siti Salwa Mat Isa ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Fiber Bragg Grating ◽  
Fiber Length ◽  
Brillouin Scattering ◽  
Ring Cavity ◽  
Wavelength Region ◽  
Stimulated Brillouin Scattering ◽  
Bragg Grating ◽  
Multi Wavelength ◽  
Stimulated Brillouin

In this paper, we experimentally investigated the performance of ring cavity multi-wavelength Brillouin fiber laser utilizing fiber Bragg grating which operated in the C-band wavelength region. The combination of stimulated Brillouin scattering and selective wavelengths gave a new invention in the optical fiber communication. Five different lengths of single mode fiber are used in order to get the best gain medium for stimulated Brillouin scattering effect. Up to 33 of Brillouin Stokes signals and 31 of anti-Stokes signals were obtained when 10 km fiber length was used in the laser system. The average value optical signal to noise ratio of 15 dB has been achieved. The broadening bandwidth of Brillouin Stokes signals also occurred at the center wavelength of 1550 nm based on the 3 dB bandwidth of 5 nm fiber Bragg grating.

Optimization of Output Coupling Ratio for Multi-Wavelength Brillouin Fiber Laser Employing FBG and DCF as Gain Medium

2016 ◽  
Vol 857 ◽  
pp. 608-612 ◽  
Author(s):  
A. Zakiah Malek ◽  
S. Nursyamimi Ariffin ◽  
N.A.M. Ahmad Hambali ◽  
M.H.A. Wahid ◽  
M.M. Shahimin ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Brillouin Scattering ◽  
Signal To Noise Ratio ◽  
Ring Cavity ◽  
Nonlinear Coefficient ◽  
Gain Medium ◽  
Output Coupling ◽  
Coupling Ratio ◽  
Brillouin Pump ◽  
Multi Wavelength

A ring-cavity multi-wavelength Brillouin fiber laser by employing a fiber Bragg grating and dispersion compensating fiber was experimentally demonstrated. The multi-wavelength Brillouin fiber laser has been analyzed at different output coupling ratios at 1550 nm of Brillouin pump wavelength. A ring-cavity multi-wavelength Brillouin fiber laser has been designed with a 16 km long of dispersion compensating fiber which acts as gain medium for stimulated Brillouin scattering effect. Dispersion compensating fiber is designed to have small core size and has higher nonlinear coefficient. As a result, 8 Brillouin Stokes signals were produced at maximum Brillouin power of 21 dBm and output coupling ratio of 80%. The best performance of output coupling ratio was determined by 70% with the highest of signal to noise ratio at 38.39 dB.

Monitoring of single-mode fiber laser heating using Rayleigh scattering and first order fs-PbP fiber Bragg grating

2017 ◽  
Author(s):  
Rudy Desmarchelier ◽  
Romain Cotillard ◽  
Nicolas Roussel ◽  
Steven Armiroli ◽  
Guillaume Laffont
Keyword(s):  
Fiber Laser ◽  
Fiber Bragg Grating ◽  
Laser Heating ◽  
Rayleigh Scattering ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Bragg Grating ◽  
First Order

Single Brillouin frequency shifted S-band multi-wavelength Brillouin-Raman fiber laser utilizing fiber Bragg grating and Raman amplifier in ring cavity

2016 ◽  
Vol 60 ◽  
pp. 38-44 ◽  
Author(s):  
A.H. Reshak ◽  
N.A.M. Ahmad Hambali ◽  
M.M. Shahimin ◽  
M.H.A. Wahid ◽  
Nur Elina Anwar ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Fiber Bragg Grating ◽  
Ring Cavity ◽  
Bragg Grating ◽  
Raman Fiber Laser ◽  
Raman Amplifier ◽  
Multi Wavelength

Study on Structure Optimization of Multi-Wavelength Brillouin-Erbium Doped Fiber Laser

2013 ◽  
Vol 734-737 ◽  
pp. 2792-2795
Author(s):  
Xue Fang Zhou ◽  
Shan Yuan
Keyword(s):  
Pump Power ◽  
Fiber Laser ◽  
Ring Cavity ◽  
Single Mode ◽  
Fiber Amplifier ◽  
Single Mode Fiber ◽  
Erbium Doped Fiber Amplifier ◽  
Erbium Doped ◽  
Access Mode ◽  
Multi Wavelength

A ring cavity multiwavelength Brillouin erbium-doped optical fiber laser （EDFL）based on the stimulated brillouin scattering effects and linear gain mechanism of erbium-doped fiber was demonstrated, in which single mode fiber was used as Brillouin gain medium and the Stokes signal was amplified by using the erbium-doped fiber amplifier, so that the laser can produce a stable multi-wavelength output at room temperature. Through the study and analysis of the position of the circular and coupler and the access mode of the coupler, we found that they both had influence on the output of the brillouin-erbium fiber laser. Then we have done some experiments at the Brillouin pump power of 14 dBm and the 980 nm pump power of 23 dBm, and single mode fiber length of 10km. The results showed that the access mode of the coupler affects the output of the brillouin-erbium fiber laser obviously. The detailed test results and the corresponding explanation were given.

MULTIWAVELENGTH SOURCE USING A BRILLOUIN FIBER LASER

2008 ◽  
Vol 17 (02) ◽  
pp. 199-203 ◽  
Author(s):  
S. W. HARUN ◽  
M. R. SHIRAZI ◽  
H. A. ABDUL-RASHID ◽  
H. AHMAD
Keyword(s):  
Fiber Laser ◽  
Brillouin Scattering ◽  
Single Mode ◽  
Gain Medium ◽  
Single Mode Fiber ◽  
Feedback Mechanism ◽  
Brillouin Pump ◽  
Highly Nonlinear ◽  
Stokes Lines ◽  
Anti Stokes

A multiwavelength laser operating on the basis of stimulated Brillouin scattering (SBS) is demonstrated in a single mode fiber (SMF) coupled with a feedback loop and an optical circulator. Ten simultaneous Stokes and anti-Stokes lines are obtained with a line spacing of either 0.08 or 0.16 nm at a Brillouin pump (BP) power of 14 dBm. The use of a 50/50 fused coupler gives the highest number of lines at a Stokes power of approximately 8 dBm. The anti-Stokes lines are generated by four-wave mixing and bidirectional operation of the system. This Brillouin fiber laser (BFL) is capable of operating at any wavelength, depending completely on the BP wavelength. Due to the built-in feedback mechanism, its operation is free from the need for any additional active linear gain medium, such as erbium-doped fibers used in a Brillouin erbium fiber laser. Further, the SMF can in principle be replaced with a highly nonlinear waveguide, such as a photonic crystal waveguide, to make a compact multiwavelength BFL.

S-band multi-wavelength Brillouin-Raman fiber laser utilizing fiber Bragg grating and Raman amplifier in the ring cavity

2015 ◽  
Author(s):  
Nur Elina Anwar ◽  
N. A. M. Ahmad Hambali ◽  
M. Syazwan Sohaimi ◽  
M. M. Shahimin ◽  
M. H. A. Wahid ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Fiber Bragg Grating ◽  
Ring Cavity ◽  
Bragg Grating ◽  
Raman Fiber Laser ◽  
Raman Amplifier ◽  
Multi Wavelength

scholarly journals Erbium Ring Fiber Laser Cavity Based on Tip Modal Interferometer and Its Tunable Multi-Wavelength Response for Refractive Index and Temperature

2018 ◽  
Vol 8 (8) ◽  
pp. 1337 ◽  
Author(s):  
Yanelis Lopez-Dieguez ◽  
Julian Estudillo-Ayala ◽  
Daniel Jauregui-Vazquez ◽  
Luis Herrera-Piad ◽  
Juan Sierra-Hernandez ◽  
...  
Keyword(s):  
Refractive Index ◽  
Fiber Laser ◽  
Low Cost ◽  
Ring Cavity ◽  
Laser Cavity ◽  
Single Mode ◽  
Cost Effective ◽  
Single Mode Fiber ◽  
Fiber Structure ◽  
Multi Wavelength

A tunable multi-wavelength fiber laser is proposed and demonstrated based on two main elements: an erbium-doped fiber ring cavity and compact intermodal fiber structure. The modal fiber interferometer is fabricated using the cost-effective arc splice technique between conventional single-mode fiber and microfiber. This optical fiber structure acts as a wavelength filter, operated in reflection mode. When the refractive index and temperature variations are applied over the fiber filter, the ring laser cavity provides several quad-wavelength laser spectra. The multi-wavelength spectra are tuned into the C-band with a resolution of 0.05 nm. In addition, the spectra are symmetric with minimal power difference between the lasing modes involved, and the average of the side mode suppression ratio is close to 37 dB. This laser offers low-cost implementation, low wavelength drift, and high power stability, as well as an effect of easy controllability regarding tuned multi-wavelength.

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