Coupling of light energy between single-mode optical guides
Abstract
Theoretical and experimental studies of coupling in monomode optical devices are presented. Energy transfer between guides is considered analytically using a coupling-coefficient approach to facilitate the evaluation of coupling losses, which are linked with the matching of the guide structures to the individual modal characteristics. Practical techniques for improving coupling efficiency are evaluated in a review of experiments performed at the Thomson-CSF Laboratoire Central de Recherches, and the realization of some of these techniques in a 1.3-micron monomode laser head and the IO circuits for an optical-fiber rotation sensor is described in detail. Graphs of the theoretical relationships and experimental results, photographs of modified fibers and finished components, and tables of numerical values are provided.
- Publication:
-
Revue Technique Thomson CSF
- Pub Date:
- September 1983
- Bibcode:
- 1983RvT....15..663V
- Keywords:
-
- Integrated Optics;
- Optical Coupling;
- Coupling Coefficients;
- Efficiency;
- Fiber Optics;
- Misalignment;
- Optical Fibers;
- Optical Gyroscopes;
- Semiconductor Lasers;
- Spatial Distribution;
- Temperature Effects;
- Electronics and Electrical Engineering