scholarly journals Effects of Raman pump power distribution on output spectrum in a multi-wavelength BRFL

2015 ◽  
Vol 23 (20) ◽  
pp. 25570 ◽  
Author(s):  
G. Mamdoohi ◽  
A. R. Sarmani ◽  
M. H. Abu Bakar ◽  
M. A. Mahdi
Keyword(s):  
Pump Power ◽  
Power Distribution ◽  
Output Spectrum ◽  
Multi Wavelength ◽  
Raman Pump

scholarly journals Effects of Raman pump power distribution on output spectrum in a multi-wavelength BRFL: publisher’s note

2015 ◽  
Vol 23 (22) ◽  
pp. 29127 ◽  
Author(s):  
G. Mamdoohi ◽  
A. R. Sarmani ◽  
M. H. Abu Bakar ◽  
M. A. Mahdi
Keyword(s):  
Pump Power ◽  
Power Distribution ◽  
Output Spectrum ◽  
Multi Wavelength ◽  
Raman Pump

Multi-wavelength Brillouin Raman Erbium Fiber Laser utilizing Captured Residual Raman Pump Power

2018 ◽  
Author(s):  
Aiman Ismail ◽  
Hazwani Mohammad Helmi ◽  
Md Zaini Jamaludin ◽  
Pin Jern Ker ◽  
Fairuz Abdullah ◽  
...  
Keyword(s):  
Pump Power ◽  
Fiber Laser ◽  
Multi Wavelength ◽  
Raman Pump

L-band multi-wavelength Brillouin–Raman fiber laser utilizing the reverse-S-shaped section

2014 ◽  
Vol 23 (02) ◽  
pp. 1450026 ◽  
Author(s):  
N. A. M. Ahmad Hambali ◽  
M. Ali Toor ◽  
Z. Yusoff ◽  
M. Ajiya
Keyword(s):  
Pump Power ◽  
Fiber Laser ◽  
Wavelength Region ◽  
Signal Power ◽  
Raman Fiber Laser ◽  
Brillouin Pump ◽  
Multi Wavelength ◽  
Pump Signal ◽  
L Band ◽  
Raman Pump

In this paper, we experimentally demonstrated multi-wavelength Brillouin–Raman fiber laser that operates in the L-band wavelength region. The laser structure utilizes the reverse-S-shaped technique. 35 output Brillouin Stokes signals were generated at the injection of 6.3 mW of Brillouin pump power at wavelength of 1580 nm into the laser cavity together with a Raman pump power of 891.25 mW. The generated output Brillouin Stokes signals are rigidly separated by 0.08 nm (10 GHz). The structure also provides a high tuning range of 25 nm, from 1570 nm to 1595 nm at the injection of 6.3 mW of Brillouin pump signal power with a Raman pump signal power of 795.3 mW. The generated Brillouin Stokes signals also have an average peak power of 1.11 mW. Highest optical signal-to-noise ratio of 21 dB was obtained at Brillouin pump wavelength of 1595 nm.

MoS2-wrapped microfiber-based multi-wavelength soliton fiber laser

2017 ◽  
Vol 31 (32) ◽  
pp. 1750303 ◽  
Author(s):  
Feifei Lu
Keyword(s):  
Pump Power ◽  
Fiber Laser ◽  
Saturable Absorber ◽  
Optical Communications ◽  
Fiber Lasers ◽  
Tunable Filter ◽  
Linear Birefringence ◽  
Erbium Doped ◽  
Potential Applications ◽  
Multi Wavelength

The single-, dual- and triple-wavelength passively mode-locked erbium-doped fiber lasers are demonstrated with MoS2 and polarization-dependent isolator (PD-ISO). The saturable absorber is fabricated by wrapping an MoS2 around a microfiber. The intracavity PD-ISO acts as a wavelength-tunable filter with a polarization controller (PC) by adjusting the linear birefringence. Single-wavelength mode-locked fiber laser can self-start with suitable pump power. With appropriate PC state, dual- and triple-wavelength operations can be observed when gains at different wavelengths reach a balance. It is noteworthy that dual-wavelength pulses exhibiting peak and dip sidebands, respectively, are demonstrated in the experiment. The proposed simple and multi-wavelength all-fiber conventional soliton lasers could possess potential applications in numerous fields, such as sensors, THz generations and optical communications.

Impact of angular pump power distribution on double-clad fiber temperature and incidence on high-power fiber laser reliability

2019 ◽  
Author(s):  
Evelyne Brown-Dussault ◽  
Sylvain Boudreau ◽  
Pierre-Michel Belzile ◽  
Dominic Faucher ◽  
Mathieu Faucher
Keyword(s):  
Pump Power ◽  
Fiber Laser ◽  
High Power ◽  
Power Distribution

Switchable soliton mode-locked and multi-wavelength operation in thulium-doped all-fiber ring laser

2016 ◽  
Vol 25 (03) ◽  
pp. 1650034 ◽  
Author(s):  
A. A. Latiff ◽  
H. Shamsudin ◽  
Z. C. Tiu ◽  
H. Ahmad ◽  
S. W. Harun
Keyword(s):  
Pump Power ◽  
Signal To Noise Ratio ◽  
Gain Medium ◽  
Power Fluctuation ◽  
Pulse Profile ◽  
Soliton Pulse ◽  
Maximum Pulse Energy ◽  
Multi Wavelength ◽  
Nonlinear Polarization Rotation ◽  
Polarization Orientation

A switchable soliton mode-locked and multi-wavelength operation in thulium-doped fiber laser (TDFL) is demonstrated based on nonlinear polarization rotation (NPR) technique. The TDFL produces a soliton pulse operating at 1917.66[Formula: see text]nm using a 5[Formula: see text]m long thulium-doped fiber (TDF) as a gain medium as well as nonlinear medium. The solitonic behavior is further identified with two orders of Kelly sidebands in the output spectrum. The mode-locked emission is obtained from threshold pump power of 522–1052[Formula: see text]mW with consistent pulse repetition rate of 14.7[Formula: see text]MHz. Maximum pulse energy is calculated as 0.89[Formula: see text]nJ at pump power of 1052[Formula: see text]mW, whereas the maximum pulse width is estimated to be approximately 1.36[Formula: see text]ps corresponding to sech2 pulse profile. By shifting the polarization orientation, the cavity can change to multi-wavelength operation with signal-to-noise ratio (SNR) higher than 53[Formula: see text]dB. At pump power of 1037[Formula: see text]mW, three stable peak wavelengths are generated with a power fluctuation and constant spacing of [Formula: see text] dB and 7.4[Formula: see text]nm, respectively.

scholarly journals Simulation of dual stage thulium-doped fiber amplifier using pump power distribution technique

2019 ◽  
Vol 15 (3) ◽  
pp. 1203
Author(s):  
Muhammad Syauqi Kusyairi Bin Jamalus ◽  
Nelidya Md. Yusoff ◽  
Abdul Hadi Sulaiman
Keyword(s):  
Pump Power ◽  
Output Power ◽  
Power Distribution ◽  
Noise Figure ◽  
Signal To Noise Ratio ◽  
Fiber Amplifier ◽  
Gain Medium ◽  
Optical Signal ◽  
Double Pass ◽  
Dual Stage

<span>This paper shows dual stage thulium-doped fiber amplifiers (TDFAs) that use a pump power distribution technique. Simulations were done with signals ranging from 1975 nm to 2000 nm using the OptiSystem v.13 software. The results required were gathered from the software. The results of gain, noise figure, optical signal-to-noise ratio (OSNR) and output power were obtained. The highest gain and lowest noise figure results were achieved for the double pass dual stage TDFA configuration with values of 19.85 dB and 5.58 dB respectively, followed by the single pass dual stage TDFA. The OSNR and output power performances were also better for the double pass dual stage TDFA, obtaining 57.12 dB and 19.55 dBm respectively. This study shows that thulium can be used in the 2 µm region as an active gain medium and the dual stage architecture and distributed pumping technique proves to be effective techniques to obtain the desired results. Experimental work will be done in the future with the simulated results used as a reference.</span>

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