Real-time measurements of polarization fluctuations in an optical fiber submarine cable in a deep-sea trial using electrooptic LiNbO/sub 3/ device

1989 ◽  
Vol 7 (8) ◽  
pp. 1201-1206 ◽  
Author(s):  
Y. Namihira ◽  
H. Wakabayashi
Keyword(s):  
Optical Fiber ◽  
Real Time ◽  
Deep Sea ◽  
Submarine Cable ◽  
Sea Trial

Design and test results of a deep sea optical fiber submarine cable

1986 ◽  
Vol 69 (2) ◽  
pp. 111-120 ◽  
Author(s):  
Yasuhiko Niiro ◽  
Yoshihiro Ejiri ◽  
Hitoshi Yamamoto ◽  
Yoshihiko Yamazaki ◽  
Makoto Nunokawa
Keyword(s):  
Optical Fiber ◽  
Deep Sea ◽  
Test Results ◽  
Submarine Cable

7000 m deep sea trial of OS-280M optical-fibre submarine cable system

1984 ◽  
Vol 20 (13) ◽  
pp. 548 ◽  
Author(s):  
Y. Ishikawa ◽  
Y. Niiro ◽  
K. Takai ◽  
H. Wakabayashi
Keyword(s):  
Optical Fibre ◽  
Deep Sea ◽  
Submarine Cable ◽  
Cable System ◽  
Sea Trial

Deep sea trial of 1.55 [micro sign]m optical fibre submarine cable system

1988 ◽  
Vol 24 (12) ◽  
pp. 749 ◽  
Author(s):  
Y. Namihira ◽  
S. Yamamoto ◽  
Y. Horiuchi ◽  
H. Wakabayashi
Keyword(s):  
Optical Fibre ◽  
Deep Sea ◽  
Submarine Cable ◽  
Cable System ◽  
Sea Trial

Polarisation fluctuations of optical fibre submarine cable in 6000 m deep sea trial

1988 ◽  
Vol 24 (10) ◽  
pp. 582-583 ◽  
Author(s):  
Y. Namihira ◽  
S. Ryu ◽  
H. Wakabayashi
Keyword(s):  
Optical Fibre ◽  
Deep Sea ◽  
Submarine Cable ◽  
Sea Trial

A Study of the Sealing Performance of a New High-Pressure Cone Valve for Deep-Sea Gas-Tight Water Samplers

2010 ◽  
Vol 132 (4) ◽  
Author(s):  
Shi-Jun Wu ◽  
Can-Jun Yang ◽  
Ying Chen ◽  
Yan-Qing Xie
Keyword(s):  
Finite Element Analysis ◽  
High Pressure ◽  
Deep Sea ◽  
Hydrothermal Fluid ◽  
Contact Model ◽  
Element Analysis ◽  
Sea Trial ◽  
Sealing Performance ◽  
Pressure Cone ◽  
Gas Tight

The cone valve plays an important role in high-pressure sealing applications. In this paper, a new high-pressure cone valve, based on the titanium alloy poppet-to-polyetheretherketone seat sealing structure, is proposed for deep-sea gas-tight water samplers. In order to study the sealing performance of the new valve, both the conforming poppet-seat contact model and the nonconforming poppet-seat contact model were evaluated. Finite element analysis based on the two models was performed and validated by experiments. The results indicate that the nonconforming poppet-seat contact model has a better sealing performance than the conforming poppet-seat contact model. The new cone valve also was applied in a gas-tight hydrothermal fluid sampler and successfully tested in a sea trial during the KNOX18RR cruise from 9 July to 12 August 2008.

Polarization mode dispersion measurements in an installed optical fiber submarine cable

1989 ◽  
Vol 1 (10) ◽  
pp. 329-331 ◽  
Author(s):  
Y. Namihira ◽  
Y. Horiuchi ◽  
K. Mochizuki ◽  
H. Wakabayashi
Keyword(s):  
Optical Fiber ◽  
Polarization Mode Dispersion ◽  
Polarization Mode ◽  
Submarine Cable ◽  
Mode Dispersion
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