Ramp Topics - Lightwave

Singlemode Fiber

Home>Topics>Singlemode Fiber
Refine Results
  1. All
  2. Category
  3. Online Articles
  4. Magazine Articles
  1. Embedded singlemode fiber cable in local exchange faces threat of obsolescence, according to new Technology Futures report

    Substitution of advanced fiber for standard singlemode fiber-optic cable based on interoffice and feeder fiber for metallic substitutions 24 June 2003 Austin, TX Lightwave -- Today's embedded standard singlemode fiber cables are already obsolete for high density, long-haul applications and may also become so in the local exchange, according to a new study by Technology Futures Inc. , (TFI). "When fiber was introduced into the local exchange in the early 1980s, we had little on which to base depreciation lives," says Ray Hodges, senior consultant at TFI, and co-author of the report. "We now have experience regarding the physical mortality of fiber as well as experience with singlemode fiber replacing multimode fiber." He adds, "There are now advanced types of fiber capable of displacing the embedded singlemode as well as competitive issues that must be considered in the depreciation life estimation." Presently, there is very little fiber in the distribution plant. The timing of placing distribution is late enough that, in all likelihood, it will be advanced fiber, according to TFI research. With long-haul fiber already using advanced fiber and newly placed distribution fiber also being advanced fiber, a bottleneck will be created in the middle of the network that contains the most outdated singlemode fiber. TFI forecasts that, by 2010, incumbent local-exchange carriers (ILECs) will provision one-third fewer access lines than today, and that, by 2015, less than half as many. Competition will strand large quantities of network equipment including fiber cables, reducing the economic life. Even so, by 2020, approximately 95% of U.S. households will be online and almost all of these will be broadband users, according to TFI research. Other key findings in the report include: •Three types of advanced fibers available today offer significant advantages when CWDM or DWDM are used. •TFI continues to recommend a projection life of 15 to 20 years for non-metallic cable. The new report "Depreciation Lives of Fiber Optic Cables in the Local Exchange," authored by Ray L. Hodges, and Lawrence K. Vanston, Ph.D., TFI president, addresses the economic life of singlemode fiber-optic cable installed by ILECs in the local-exchange network. The depreciation lives of these cables are derived from analysis of demand, technology substitution, physical mortality, and competitive factors. The research was sponsored by the Telecommunications Technology Forecasting Group, a consortium of telephone companies comprised of Bell Canada, BellSouth Telecommunications, Qwest, SBC, Sprint, and Verizon. Combined survivor curves for standard singlemode fiber-optic cable technology substitution based on interoffice and feeder fiber for metallic substitutions

    Online Articles

    Online Articles

    Tue, 24 Jun 2003

  2. Singlemode fiber connections provide analog transmission success

    Singlemode fiber connections provide analog transmission ..... factors will ensure the effective use of singlemode fiber with analog transmission systems ..... not necessarily the case when using singlemode fiber . In this situation there are both

    Online Articles

    Online Articles

    Tue, 1 Sep 1998

  3. Multimode- vs. singlemode -fiber standards

    Multimode- vs. singlemode - fiber standards By WILLIAM B. GARDNER ..... concepts that do not apply to singlemode fiber : Numerical aperture (NA ..... correct divergence angle for the singlemode fiber `s radiation cone. Because NA

    Online Articles

    Online Articles

    Mon, 1 Dec 1997

  4. Hubbell Premise Wiring unveils new singlemode fiber -optic connectors

    October 2, 2002 --Hubbell Premise Wiring has announced a new line of singlemode 2Quick SC and ST crimp-style fiber-optic connectors.

    Online Articles

    Online Articles

    Wed, 2 Oct 2002

  1. Corning launches ultra-low-loss, singlemode fiber for long-haul, regional networks

    Online Articles

    Online Articles

    Wed, 21 Mar 2007

  2. World record powers achieved in singlemode fiber lasers, powers scalable to 1kW and beyond

    February 3, 2003 --Dr Johan Nilsson of Southampton Photonics Inc. and the Optoelectronics Research Centre, University of Southampton, UK, presented results at the Photonics West Conference in San Jose this week that cladding pumped fiber lasers are producing the high powers required to replace ...

    Online Articles

    Online Articles

    Mon, 3 Feb 2003

  3. Singlemode fiber -optic connector

    Singlemode fiber -optic connector Compatible with both FC and SC connectors, sup-1 singlemode fiber -optic connectors feature preassembled, one-piece crimp technology

    Online Articles

    Online Articles

    Wed, 1 Oct 1997

  4. Low-water-peak singlemode -fiber standards proposed

    specification for low-water-peak dispersion-unshifted singlemode fiber . Prepared by yours truly, the draft contains an ..... Recommendation G.652 for dispersion-unshifted singlemode fiber . Presented at the ITU-T Study Group 15 Question

    Magazine Articles

    Magazine Articles

    Wed, 1 Sep 1999

  5. Singlemode Fiber

    Singlemode Fiber

    Category

    Category

    Tue, 1 Mar 2011

  6. Krell Technologies introduces enhanced singlemode fiber -optic polisher

    28 October 2003 Morganville, NJ Lightwave --Krell Technologies is introducing the enhanced SpecPro 4L fiber-optic polisher. SpecPro is designed to yield singlemode performance for research and development, medical applications, low volume cable assembly production and field environments.

    Online Articles

    Online Articles

    Tue, 28 Oct 2003

  7. IEC provides guidance for connecting different singlemode fiber types

    Almost since the invention of singlemode fiber , different types have existed. In the early 1980s, dispersion-unshifted fibers had matched clad and depressed clad refractive

    Magazine Articles

    Magazine Articles

    Mon, 1 Jan 2007

  8. Fast progress in ITU for bend-loss insensitive singlemode fiber

    by Gerard Kuyt A relatively new ITU-T SG15 group (Question 10; chaired by Piet Matthijsse of Draka Comteq) is devoted to “optical fibers and cables for the access network to and in buildings and homes.” This group has prepared a new standard for fibers optimized for use in the first mile. Aimed at

    Magazine Articles

    Magazine Articles

    Sun, 1 Apr 2007

Get More Results