Microienses to improve LED-to-fiber optical coupling and alignment tolerance
| Autor: | John G. Ackenhusen |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Optical fiber
Materials science business.industry Materials Science (miscellaneous) Optical communication Concentrator Graded-index fiber Industrial and Manufacturing Engineering law.invention Semiconductor laser theory Normalized frequency (fiber optics) Optics law Optoelectronics Business and International Management business Refractive index Light-emitting diode |
| Zdroj: | Applied optics. 18(21) |
| ISSN: | 1559-128X |
| Popis: | The performances of four refractive concentrators in enhancing LED source-to-multimode fiber coupling are compared on the basis of improvement of coupling efficiency and relaxation of source-fiber mechanical alignment tolerances. For a core-to-source area ratio of 1.9 and a parabolic index, 0.23-N.A. fiber, experiments indicated a coupling improvement factor over butt coupling of up to 1.6, and alignment tolerance improvement factors of up to 10 (axial) or 5 (lateral) by use of an appropriate concentrator. An experimentally verified ray trace numerical simulation was used to examine the effects of fiber N.A., core area, and concentrator refractive index. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|