Erbium-doped single-mode fiber lasers: a possibility to avoid the saturation of the output power

1996 ◽  
Author(s):  
Stefa. Bedo ◽  
Willy A. Luethy ◽  
Heinz P. Weber
Keyword(s):  
Output Power ◽  
Fiber Lasers ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Erbium Doped

MULTIWAVELENGTH GENERATION OF DUAL-CAVITY BRILLOUIN/ERBIUM FIBER LASERS

2000 ◽  
Vol 09 (02) ◽  
pp. 235-241 ◽  
Author(s):  
M. KAMIL ABD-RAHMAN ◽  
M. KHAZANI ABDULLAH ◽  
HARITH AHMAD
Keyword(s):  
Fiber Lasers ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Wavelength Shift ◽  
Erbium Doped ◽  
Stokes Lines ◽  
Cavity Coupling ◽  
Brillouin Gain ◽  
Dwdm System ◽  
Peak Gain

Dual-cavity Brillouin/erbium fiber laser demonstrate a multiwavelength output in a cavity comprises of nonlinear Brillouin gain and linear EDF gain. The system consists of two erbium-doped fiber lasers EDFL sharing a single mode fiber to produce bidirectional Stokes signals. One of the cavities was made to incur a higher cavity loss and this results in a wavelength-shift of the EDF peak gain. The cavity coupling leads to a slightly broader EDF peak gain and hence increases the number of Stokes lines. The dual-cavity BEFL generates an output of 22 GHz-comb 2×15-channels at 1560 nm that can be used for DWDM system.

Switchable and tunable linear cavity erbium-doped fiber laser based on FBGs embedded in Sagnac rings

Laser Physics ◽  
2021 ◽  
Vol 32 (1) ◽  
pp. 015101
Author(s):  
Gangxiao Yan ◽  
Weihua Zhang ◽  
Peng Li ◽  
Qiuhao Jiang ◽  
Meng Wu ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Low Cost ◽  
Single Mode ◽  
Optical Signal ◽  
Single Mode Fiber ◽  
Hole Burning ◽  
Linear Cavity ◽  
Erbium Doped ◽  
Optical Fiber Sensing ◽  
Birefringence Effect

Abstract A switchable and tunable erbium-doped fiber laser with a linear cavity based on fiber Bragg gratings embedded in Sagnac rings is proposed and experimentally verified. Due to the stress birefringence effect and the polarized hole burning effect, which are introduced into the single-mode fiber in the polarization controllers (PCs) by the PCs, the designed laser can achieve seven kinds of laser-states output including three kinds of single-wavelength laser states, three kinds of dual-wavelength laser states and one kind of triple-wavelength laser state. The optical signal-to-noise ratios of the output wavelengths are all higher than 52 dB, and the wavelength shifts are all less than 0.04 nm. Furthermore, the temperature tuning of the wavelength range is also researched, which is about 1.2 nm. Due to advantages, such as low cost, simple structure, easy switching and multiple laser states, the designed laser has great application potential in laser radar, optical fiber sensing and so on.

scholarly journals Microdrilled tapers to enhance optical fiber lasers for sensing

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
R. A. Perez-Herrera ◽  
M. Bravo ◽  
P. Roldan-Varona ◽  
D. Leandro ◽  
L. Rodriguez-Cobo ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Fiber Lasers ◽  
Signal To Noise Ratio ◽  
Power Level ◽  
Single Mode ◽  
Optical Signal ◽  
Single Mode Fiber ◽  
Output Power Level ◽  
Linear Cavity

AbstractIn this work, an experimental analysis of the performance of different types of quasi-randomly distributed reflectors inscribed into a single-mode fiber as a sensing mirror is presented. These artificially-controlled backscattering fiber reflectors are used in short linear cavity fiber lasers. In particular, laser emission and sensor application features are analyzed when employing optical tapered fibers, micro-drilled optical fibers and 50 μm-waist or 100 μm-waist micro-drilled tapered fibers (MDTF). Single-wavelength laser with an output power level of about 8.2 dBm and an optical signal-to-noise ratio of 45 dB were measured when employing a 50 μm-waist micro-drilled tapered optical fiber. The achieved temperature sensitivities were similar to those of FBGs; however, the strain sensitivity improved more than one order of magnitude in comparison with FBG sensors, attaining slope sensitivities as good as 18.1 pm/με when using a 50 μm-waist MDTF as distributed reflector.

2-Gbit/s signal amplification at lambda =1.53 mu m in an erbium-doped single-mode fiber amplifier

1989 ◽  
Vol 7 (4) ◽  
pp. 651-656 ◽  
Author(s):  
C.R. Giles ◽  
E. Desurvire ◽  
J.R. Talman ◽  
J.R. Simpson ◽  
P.C. Becker
Keyword(s):  
Signal Amplification ◽  
Single Mode ◽  
Fiber Amplifier ◽  
Single Mode Fiber ◽  
Erbium Doped
Sign in / Sign up

Export Citation Format

Share Document