Effect of Launching Condition on Modal Power Characteristics of Multi-Mode Step-Index Optical Fiber: A Theoretical and Experimental Investigation |
| |
| Authors: | Sunil K. Khijwania Frances D. Carter John T. Foley Jagdish P. Singh |
| |
| Affiliation: | 1. Department of Physics , Indian Institute of Technology Guwahati , Guwahati, India;2. Center for the Advanced Studies in Photonics Research, University of Maryland , Baltimore, Maryland, USA;3. Department of Physics , Mississippi State University , Starkville, Mississippi, USA;4. Institute for Clean Energy Technology (ICET), Mississippi State University , Starkville, Mississippi, USA |
| |
| Abstract: | Abstract This article investigates optical power transmission characteristics with varying launching conditions concentrating on weakly guiding, step-index highly multi-moded optical fibers. A single analytical expression for the fractional power transmitted per mode in a highly multi-moded fiber is obtained. This expression is used to numerically obtain the fractional power per mode, power per modal order, and finally, the total power carried by the fiber. Experiments are carried out to investigate the effect of launching conditions on the total power carried by the fiber and to establish a possible correlation with the theoretical results. Reasons for the observed experimental discrepancies are also discussed. |
| |
| Keywords: | fiber optics fractional transmitted power multi-mode step-index optical fiber |
|
|
