Figure 5: Schematic diagram of the setup. | Scientific Reports

Figure 5: Schematic diagram of the setup.

From: Observation of laser pulse propagation in optical fibers with a SPAD camera

Figure 5

The laser emits pulses that are coupled into a an optical fiber that is in the field of view of the SPAD camera. Photons that are scattered from the optical fibre are then detected by the SPAD camera. A small fraction of the beam power is sampled with the beam splitter for the optical trigger. The optical trigger provides a periodic synchronization pulse for the SPAD camera in order to record time-correlated arrival times of the photons scattered from the optical fiber.

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