InGaAsP/InP long wavelength high efficiency edge emitting LED for single mode fiber optic communication

AbstractHigh-speed single-mode fiber-optic communication systems have been presented based on various hybrid multiplexing schemes. Refractive index step and silica-doped germanium percentage parameters are also preserved during their technological boundaries of attention. It is noticed that the connect design parameters suffer more nonlinearity with the number of connects. Two different propagation techniques have been used to investigate the transmitted data rates as a criterion to enhance system performance. The first technique is soliton propagation, where the control parameters lead to equilibrium between the pulse spreading due to dispersion and the pulse shrinking because of nonlinearity. The second technique is the MTDM technique where the parameters are adjusted to lead to minimum dispersion. Two cases are investigated: no dispersion cancellation and dispersion cancellation. The investigations are conducted over an enormous range of the set of control parameters. Thermal effects are considered through three basic quantities, namely the transmission data rates, the dispersion characteristics, and the spectral losses.

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Optical isolators for long-wavelength fiber-optic communication systems

10.1364/ofc.1983.mg6 ◽

1983 ◽

Author(s):

R. C. Booth ◽

D. Cotter ◽

E. A. D. White

Keyword(s):

Communication Systems ◽

Fiber Optic ◽

Long Wavelength ◽

Fiber Optic Communication ◽

Optical Isolators ◽

Optic Communication

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Failure Analysis of Fiber Optic Communication System in Deep-Water Remotely Operated Vehicle ROSUB 6000

Marine Technology Society Journal ◽

10.4031/mtsj.48.3.11 ◽

2014 ◽

Vol 48 (3) ◽

pp. 63-72 ◽

Cited By ~ 1

Author(s):

Raju Ramesh ◽

Dharmaraj Sathianarayanan ◽

Vittal Doss Prakash ◽

Arumugam Vadivelan ◽

Sethuraman Ramesh ◽

...

Keyword(s):

Low Temperature ◽

Failure Analysis ◽

Deep Water ◽

Fiber Optic ◽

Single Mode ◽

Single Mode Fiber ◽

Link Failure ◽

Remotely Operated Vehicle ◽

Link Loss ◽

Optic Communication

AbstractSingle-mode fiber optic systems can play vital roles in cabled deep-water vehicle operations at greater depths (>3,000 m). One kind of single-mode fiber optic system, the ROSUB 6000, is used in a deep-water work-class remotely operated vehicle (ROV). Fiber optic link failure of ROV telemetry and sound navigation and ranging were noticed at a water depth of 3,050 m during the ROSUB 6000 system sea trials. A failure analysis of the fiber optic communication system was carried out with the link data logged during different phases of the deep-sea trials. The results from the failure analysis carried out during deep-sea trials showed an increase in the fiber optic link loss from a depth of 900 m onwards. Further analysis of the fiber optic link loss in the laboratory involved pressure and low-temperature testing of all the subsea components in the ROV telemetry link. From the laboratory pressure test results, it was concluded that pressure was not the root cause of the fiber optic link failure. On further analysis, a complete fiber optic link failure was noticed during the low-temperature testing of the subsea components. Furthermore, the low-temperature testing of the individual subsea components revealed that the fiber optic rotary joint (FORJ) insertion loss increased rapidly at low temperatures. This FORJ insertion loss led to complete failure of the fiber optic links in the ROV. The degradation of index-matching fluid in the FORJ was identified to be the root cause of fiber link failure.

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Single Mode Fiber Optic Transceiver Using Short Wavelength Active Devices In Long Wavelength Fiber

10.1117/12.963389 ◽

1990 ◽

Author(s):

F. J. Gillham, ◽

D. Campbell ◽

M. Corke ◽

D. W. Stowe

Keyword(s):

Short Wavelength ◽

Fiber Optic ◽

Single Mode ◽

Single Mode Fiber ◽

Active Devices ◽

Long Wavelength

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High-precision apparatus for measuring cutoff wavelength of the single-mode optical fiber

Izmeritel`naya Tekhnika ◽

10.32446/0368-1025it.2020-6-22-26 ◽

2020 ◽

pp. 22-26

Author(s):

Vasiliy V. Grigoriev ◽

Alexei K. Mityurev ◽

Andrey O. Pogonyshev ◽

Konstantin B. Savkin

Keyword(s):

Optical Fiber ◽

High Precision ◽

Communication Systems ◽

Fiber Optic ◽

Single Mode ◽

Cutoff Wavelength ◽

Single Mode Optical Fiber ◽

Mode Dispersion ◽

Fiber Optic Communication ◽

Optic Communication

Currently, communication systems are widely used, where optical fiber is used as a transmission medium. In turn, decision and control of optical fiber parameters has become needfull, since these parameters have a significant impact on the quality and quantity of transmitted information using fiber-optic communication systems. One of these parameters is cut-off wavelength of the single-mode optical fiber, which determines the minimum wavelength of optical radiation at which the optical fiber supports only one propagated mode, in other words, operates in single-mode. The problem of decision cut-off wavelength of the optical fiber used in fiber-optic communication systems is quite relevant and demand, since when the optical fiber operates in multimode, its throughput decreases due to inter-mode dispersion. The article describes methods for measuring cut-off wavelength of the optical fiber. Variant of a high- precision apparatus for measuring cut-off wavelength of the optical fiber has been proposed and tested. The measurements were performed based on the reference bending technique described in GOST R IEC 60793-1-44-2013. The analysis of the accuracy characteristics of the developed apparatus is made, a quantitative assessment of the measurement error is obtained.

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