Abstract
An integrated fiber optic probe, comprising a monomode optical fiber fusion spliced to a short length of a graded-index multimode fiber, is fabricated for use as a coherent receiver in dynamic light scattering. The multimode fiber is cleaved to provide a gradient-index fiber lens with a focal length of 125 [Lm and an f-number close to unity. An integrated fiber receiver is used to measure the intensity-intensity autocorrelation data from a 0.05% by weight concentration of an aqueous suspension of polystyrene latex spheres. Analysis of 100 independent data sets indicates that the particle size can be recovered with an accuracy of + 1%.
| Original language | English |
|---|---|
| Pages (from-to) | 3901-3904 |
| Number of pages | 4 |
| Journal | Applied Optics |
| Volume | 32 |
| Issue number | 21 |
| DOIs | |
| State | Published - Jul 1993 |
Keywords
- Graded-index fiber lens
- Light scattering
- Particle sizing
- Photon correlation spectroscopy
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