Fiber Optics News

MacArtney MERMAC R40 AHC Winch (Image: MacArtney)

MacArtney Equips North Sea Cable Layer

Wave Height) of 3 meters during launch, recovery and operations is of compact design and fitted with a right angle level wind. The winch is supplied with a Moog Focal combined Electro Optical Slip Ring. The winch is umbilical compatible and fitted with slip ring and joint box suitable for single mode fiber optics

Photo courtesy of Planet Ocean

Planet Ocean, EOM Offshore Sign Agreement

ambient noise from acoustic sensors that are on the mooring.    EOM Offshore strives to develop new products using its patented Stretch EM Cable technology.  EOM Offshore was recently awarded a Small Business Innovation Research grant to develop a version of its stretch cable carrying fiber optics, and it has developed a prototype for a conservation mooring that will be used to restore seagrass meadows in ports and harbors.  The EOM cables designed by engineers at WHOI, are essentially rubber cords that can stretch to 2.5 times their unstretched lengths.  This means that buoys

Photo: EOM Offshore

EOM Offshores Becomes SBIR Award Recipient

its patented mooring technology to design a new lightweight, fiber optic Stretch EM Cable that will be used to tether communication gateway buoys.  To date, there is not a mooring cable on the market that can strain as the communication gateway buoy moves on the surface in wave action without the fiber optics becoming damaged or compromised.  Communication buoys are provided by the U.S. Navy, NAVFAC, NAVSEA and SPAWAR and are important, because they provide multi-path transfers between the ocean an atmosphere in support of Fleet operations.EOM Offshore, LLC was established in 2009 to commercialize

Sonardyne 6G Wideband Acoustics allows simultaneous operations by  multiple platforms. (Courtesy Sonardyne International)

Digital Ocean: Making Subsea Data More Easily Accessible

environmental challenges.   Sonardyne also points out that lines of communication are not point-to-point connections, but that they rely on multiple systems working together, operating in different mediums and changeable environments and with varying bandwidths across the internet, linked via fiber optics, satellites, short-wave or local wifi networks, acoustic modems, optical modems, Ethernet connections and LANs, with a multitude of data formats, protocols and operating systems that engineers have to somehow splice together to provide the seamless connectivity expected by users. Thus the main

(Photo: South Bay Cable)

South Bay Cable Celebrates 60

of manufacturing challenges which required extensive prototyping, testing and building of specialized equipment. Today, South Bay Cable operates numerous production lines that can produce synthetic cables with strengths ranging from a few hundred pounds up to a quarter million pounds. The advent of fiber optics allowed the elimination of heavy signal and communication components which also helped further reduce cable weight. These advancements in materials and processing allowed South Bay to design and produce cables suitable for operation at full ocean depth in lengths exceeding 10 kilometers. 

Image: © Theerapong / Adobe Stock

To Create a Sustainable Future – Digitalize Offshore Energy

material begins to degrade.    “The data on cable failure over fifty years indicates that 70 percent of failures are based on corrosion, abrasion and third party impact. Therefore, the failures work from the outside inwards which are undetectable by current PD monitoring and internal fiber optics methods.    “When cables fail, they need to be replaced. So, teams of engineers will then spend on average two weeks locating the cable and point of fault. They will then either join the needed piece of the cable via an iron collar to the remaining healthy cable or simply install

Photo: BIRNS

SoCal Tech Focus: BIRNS

creating new connectivity solutions that provide immense performance characteristics in relatively small packages. In its flagship connector line, the BIRNS Millennium series, BIRNS customers are able to rely on a 6km open face rated assemblies that combine high and low voltage electrical contacts, fiber optics and coax all in one connector. These compact connectors offer exceptionally high density pin configurations, even in highly complex combinations of contacts in close proximity to one another. To add more flexibility and performance in RF connectivity, BIRNS recently introduced a breakthrough technology

Figure 1: TE Connectivity’s SEACON 24/48 Channel HydraLight Wet Mate connector for optical subsea distribution systems. (Image: TE Connectivity)

Fiber-Optic Connector Technology for O&G Ops

chamber. This pressure balancing system allows the connector to operate without being affected by the pressure, in contrast to most drymate connectors, which have to withstand pressure differential due to having an atmospheric-pressure internal cavity.   Smaller systems benefit from fiber optics. More compact, lighter, highly modular subsea drilling and production systems are the order of the day. They are easier and less expensive to install. Even though an optical fiber weighs much less than a comparable copper wire, there are practical limits to how small a connector should be. A subsea

Photo courtesy of Novacavi

New Hybrid Cable for Optical Fiber Configuration

Novacavi has just engineered a special hybrid cable for latest electro optical transmission systems in marine application. It is specifically designed with single mode and multi mode fiber optics in several different protocols all together within one metal tube in combination with other electrical components. This customized hybrid cable is conceived as a perfect functional solution with a reliable pressure and temperature resistance in optimized shape. “We offer our technical expertise and manufacturing efficiency focusing on continuous improvement in applications of fiber optic technology.

Figure 1

CWDM for the Subsea Market

of the signal. Using TDM (Time Division Multiplexing) each wavelength can support a number of signals. For example, using two wavelengths, you can transmit multiple videos as well as one direction of data or Ethernet while the second wavelength supports the return direction of the data. Since fiber optics is signal agnostic, each wavelength can support any type of signal from the simplest of a contact closure or TTL to the more complex, high bandwidth HDSDI and GigE signals. A typical 8-ch CWDM mux/demux can support a significant amount of both unidirectional and bidirectional signals. These signals

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