Characteristics of the gain and signal-to-noise ratio of a distributed erbium-doped fiber amplifier

1992 ◽  
Vol 10 (12) ◽  
pp. 1869-1878 ◽  
Author(s):  
Senfar Wen ◽  
Sien Chi
Keyword(s):  
Signal To Noise Ratio ◽  
Fiber Amplifier ◽  
Signal To Noise ◽  
Erbium Doped Fiber Amplifier ◽  
Erbium Doped ◽  
Noise Ratio

New trend for optical signal-to-noise ratio of disturbed Raman fiber amplifier

Optik ◽  
2014 ◽  
Vol 125 (11) ◽  
pp. 2572-2576 ◽  
Author(s):  
Arwa H. Beshr ◽  
Moustafa H. Aly ◽  
A.K. AboulSeoud
Keyword(s):  
Signal To Noise Ratio ◽  
Fiber Amplifier ◽  
Optical Signal ◽  
Signal To Noise ◽  
Raman Fiber Amplifier ◽  
Noise Ratio

scholarly journals HIGH SIGNAL-TO-NOISE RATIO Q-SWITCHING ERBIUM DOPED FIBER LASER PULSE EMISSION UTILIZING SINGLE LAYER TRIVIAL TRANSFER GRAPHENE FILM SATURABLE ABSORBER

2016 ◽  
Vol 78 (3) ◽  
Author(s):  
K. Y. Lau ◽  
A. A. Latif ◽  
M. H. Abu Bakar ◽  
M. A. Mahdi
Keyword(s):  
Laser Pulse ◽  
Fiber Laser ◽  
Saturable Absorber ◽  
Signal To Noise Ratio ◽  
Single Layer ◽  
High Signal ◽  
Signal To Noise ◽  
Pulse Emission ◽  
Erbium Doped ◽  
Noise Ratio

This paper presents the high signal-to-noise ratio (SNR) Q-switched erbium-doped fiber laser pulse emission using a commercial single layer graphene (SLG) film as a saturable absorber (SA). A sandwiched-type structure with transferred single layer SLG film between two fiber ferrules is formed to function as the SA. Q-switched pulse emission with repetition rate from 47.25 kHz to 67.39 kHz and round-trip time per oscillation from 7.42 µs to 10.36 µs are obtained from the laser cavity set-up. The SNR of 62.64 dB shows a good quality of pulse generation using the SLG film as SA. The effortless production of SLG is enabling factor to produce fast fabrication and low cost SA for application in Q-switched pulsed fiber lasers.  

Ge-doped Raman fiber amplifier with enhanced signal-to-noise ratio using second Stokes control pulses

2000 ◽  
Vol 70 (2) ◽  
pp. 169-173
Author(s):  
N.S. Kim ◽  
M. Prabhu ◽  
C. Li ◽  
J. Song ◽  
D. Shen ◽  
...  
Keyword(s):  
Signal To Noise Ratio ◽  
Fiber Amplifier ◽  
Signal To Noise ◽  
Raman Fiber Amplifier ◽  
Noise Ratio

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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