Radiation Losses in Glass Optical Waveguides
Abstract
Measurements show that single-mode waveguides can be constructed which have radiation losses of about 7 dB/km—very close to the intrinsic material scattering loss. These waveguides, with total losses between 60 and 70 dB/km, have permitted the measurement of bending losses which become dominant at radii of curvature of a few centimeters. An approximate theory based on bending a rectangular guide appears to represent the circular waveguide results very well.
- Publication:
-
Applied Physics Letters
- Pub Date:
- November 1970
- DOI:
- 10.1063/1.1653255
- Bibcode:
- 1970ApPhL..17..423K