Suppression of dynamic laser speckle signals in multimode fibers of various lengths
| Autor: | Wiendelt Steenbergen, Anna L. Petoukhova, Ester Cleven, Frits F. M. de Mul |
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| Přispěvatelé: | Faculty of Science and Technology, Biomedical Photonic Imaging |
| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: |
Multi-mode optical fiber
Optical fiber Materials science Laser diode business.industry Materials Science (miscellaneous) IR-76440 Physics::Optics Polarization-maintaining optical fiber Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Graded-index fiber Industrial and Manufacturing Engineering law.invention Optics METIS-218002 law Fiber optic sensor Fiber laser Fiber Business and International Management business |
| Zdroj: | Applied Optics, 43(10), 2059-2065. Optical Society of America |
| ISSN: | 0003-6935 |
| DOI: | 10.1364/ao.43.002059 |
| Popis: | The effects of fiber coupling and fiber length on photocurrent fluctuations are studied when the light of a laser diode transmitted to and from a dynamic turbid medium by a step-index multimode fiber is studied. When the laser light is coupled asymmetrically, filling only the higher-order modes, the photocurrent fluctuations are suppressed significantly when fiber lengths of as much as 16 m are added between the laser and the medium. Addition of as much as 16 m of detection fiber, or any fiber in the case of symmetric light coupling, leads to much less or no suppression of the photocurrent fluctuations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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