Abstract: Obtaining true beautiful data from any photon correlation experiment demands on serious attention to improve the signal-to-noise ratio. Single-mode optical fibers provide the ideal receiver optics for photon correlation spectroscopy measurements. The analysis shows that a single-mode fiber can achieve a high collection efficiency and improve the signal-to-noise ratio effectively in photon correlation experiments. All these features are also demonstrated in experiments.

Keywords: 
• single-mode optical fiber /
• photon correlation spectroscopy /
• signal-to-noise ratio /
• coherence factor