Low-noise Pr3+-doped fluoride fibre amplifier

1995 ◽  
Vol 31 (10) ◽  
pp. 806-807 ◽  
Author(s):  
M. Yamada ◽  
S. Sudo ◽  
Y. Ohishi ◽  
H. Yoshinaga ◽  
K. Oikawa ◽  
...  
Keyword(s):  
Low Noise ◽  
Fibre Amplifier

Low noise operation of Er3+ doped silica fibre amplifier around 1.6 μm

1992 ◽  
Vol 28 (20) ◽  
pp. 1924 ◽  
Author(s):  
J.F. Massicott ◽  
R. Wyatt ◽  
B.J. Ainslie
Keyword(s):  
Low Noise ◽  
Fibre Amplifier ◽  
Silica Fibre

980 nm band pumped Er3+-doped tellurite-based fibre amplifier with low-noise figure of less than 4.5 dB

2002 ◽  
Vol 38 (23) ◽  
pp. 1419 ◽  
Author(s):  
A. Mori ◽  
H. Ono ◽  
K. Shikano ◽  
M. Shimizu
Keyword(s):  
Noise Figure ◽  
Low Noise ◽  
Fibre Amplifier

scholarly journals Low-noise erbium-doped fibre amplifier operating at 1.54μm

1987 ◽  
Vol 23 (19) ◽  
pp. 1026 ◽  
Author(s):  
R.J. Mears ◽  
L. Reekie ◽  
I.M. Jauncey ◽  
D.N. Payne
Keyword(s):  
Low Noise ◽  
Fibre Amplifier ◽  
Erbium Doped

Er/Ce Codoped Tellurite Fibre Amplifier for High-Gain and Low-Noise Operation

2008 ◽  
Author(s):  
Y. Q. Wei ◽  
A. Harsh ◽  
R. V. Penty ◽  
I. H. White ◽  
S. Shen ◽  
...  
Keyword(s):  
High Gain ◽  
Low Noise ◽  
Fibre Amplifier

Low-noise and gain-flattened fluoride-based Er3+-doped fibre amplifier pumped by 0.97 [micro sign]m laser diode

1997 ◽  
Vol 33 (9) ◽  
pp. 809 ◽  
Author(s):  
M. Yamada ◽  
Y. Ohishi ◽  
T. Kanamori ◽  
H. Ono ◽  
S. Sudo ◽  
...  
Keyword(s):  
Laser Diode ◽  
Low Noise ◽  
Fibre Amplifier

Low Noise-figure Miniature Erbium-doped Fibre Amplifier using Uncooled Pump Laser

2006 ◽  
Vol 38 (7) ◽  
pp. 625-631
Author(s):  
Shien-Kuei Liaw ◽  
Cheng-Kai Huang ◽  
Yuan–Lung Hsiao ◽  
Li-Chuan Mau ◽  
Hong-Xi Cao ◽  
...  
Keyword(s):  
Noise Figure ◽  
Low Noise ◽  
Pump Laser ◽  
Fibre Amplifier ◽  
Erbium Doped

Low noise, all-optical gain controlled Er3+ doped fibre amplifier using asymmetric control laser cavity design

1996 ◽  
Vol 32 (9) ◽  
pp. 816 ◽  
Author(s):  
J. Massicott ◽  
C. Lebre ◽  
R. Wyatt ◽  
R. Kashyap ◽  
D. Williams ◽  
...  
Keyword(s):  
Optical Gain ◽  
Laser Cavity ◽  
Low Noise ◽  
Fibre Amplifier ◽  
All Optical ◽  
Cavity Design ◽  
Control Laser

Distribution of R- and S-Process Elements in the Galactic Halo

1988 ◽  
Vol 132 ◽  
pp. 501-506
Author(s):  
C. Sneden ◽  
C. A. Pilachowski ◽  
K. K. Gilroy ◽  
J. J. Cowan
Keyword(s):  
Heavy Element ◽  
Galactic Halo ◽  
Low Noise ◽  
Heavy Elements ◽  
Process Synthesis ◽  
Element Abundances ◽  
Halo Stars ◽  
Abundance Patterns ◽  
R Process ◽  
Process Elements

Current observational results for the abundances of the very heavy elements (Z>30) in Population II halo stars are reviewed. New high resolution, low noise spectra of many of these extremely metal-poor stars reveal general consistency in their overall abundance patterns. Below Galactic metallicities of [Fe/H] Ã −2, all of the very heavy elements were manufactured almost exclusively in r-process synthesis events. However, there is considerable star-to-star scatter in the overall level of very heavy element abundances, indicating the influence of local supernovas on element production in the very early, unmixed Galactic halo. The s-process appears to contribute substantially to stellar abundances only in stars more metal-rich than [Fe/H] Ã −2.

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