Abstract
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
Original language | English |
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Pages (from-to) | 2059-2065 |
Number of pages | 7 |
Journal | Applied Optics |
Volume | 43 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2004 |
Keywords
- IR-76440
- METIS-218002