Abstract

This paper describes two approaches to measuring transmission losses in optical fibers by the thermal-rise technique. Rapid and convenient loss determinations can be made on short (~10-cm) lengths of fibers. Values of loss as low as ~10−7 cm−1 (0.043 dB/km) can be measured with transmitted light power of ~100 mW.

© 1974 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. R. L. Cohen, Appl. Opt. 13, 2518 (1974).
    [CrossRef] [PubMed]
  2. It is possible to measure either total loss (absorption plus scattering) or absorption alone by using either opaque or transparent lacquer in the cell construction.
  3. A doped silica fiber, with 84-μm core and ΔN = 0.008.
  4. D. A. Pinnow, T. C. Rich, Appl. Opt. 13, 1376 (1974).
    [CrossRef] [PubMed]

1974 (2)

Appl. Opt. (2)

Other (2)

It is possible to measure either total loss (absorption plus scattering) or absorption alone by using either opaque or transparent lacquer in the cell construction.

A doped silica fiber, with 84-μm core and ΔN = 0.008.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (3)

Fig. 1
Fig. 1

Sketch of parallel wire loss-measuring cell made by attaching a single very fine wire to the fiber under test using a thin lacquer as cement. The cell is about 17 cm long. The thermal time constant is about 4 sec for a 110-μm fiber.

Fig. 2
Fig. 2

Sketch of tubular loss measuring cell made with two identical tubular elements, one of which is used as the measuring arm and the other as a reference arm to compensate for thermal drifts. The quartz tubes are ~15 cm long and 0.4 mm in diameter. The thermal time constant is about 20 sec for the arrangement shown.

Fig. 3
Fig. 3

Optical connections and ac Wheatstone bridge arrangement for making measurements of fiber transmission loss using the cells shown in Figs. 1 & 2.

Metrics