FiberFlow Optics for LDA and PDA Robust, sealed, easy to align optics Complete 2D FiberFlow optics: DopplerLite laser with up to 300 mW per wavelength, FiberFlow Transmitter and manipulators for optical fiber in-coupling, and a 2D FiberFlow probe  Flexibility and upgradeability: 1-, 2- and 3component configurations using Diode Pumped Solid State (DPSS) lasers  DPSS lasers up to 1 W for high quality data  Four probe sizes to match flow rigs of any size  Built-in alignment target for fast set up  No tools required for alignment  Automatic laser safety shutters for user protection  Sealed fiber connectors for longevity  Laser beam polarization selectable  Variable laser beam separation  Fine adjustment of the beam intersection In Laser Doppler anemometry (LDA) and Phase Doppler Anemometry (PDA), the optical system must be adapted to the flow conditions and dimensions of the flow rig. With four probe sizes and a range of front optics available, the FiberFlow system offers a high degree of flexibility in the configuration of your transmitting optics. Stable FiberFlow design and the easy alignment procedure allow you to focus on measurements rather than optical adjustments. Combined with compact, high power DPSS lasers, the FiberFlow systems is the ideal solution for measuring small particles at long distance. The FiberFlow system comprises all optical components needed for LDA or

FiberFlow Optics for LDA and PDA Product Information Description The FiberFlow system comprises the following key elements: • A transmitter providing colour separation and frequency shifting of the laser beam • Fiber manipulators for optimum coupling of the laser light into optical fibers • A probe head with a fibre-optical connection to the transmitter • Front optics defining the measurement distance and the size of the measurement volume. • Back-scatter receiving optics including colour filters, colour separation and photodetectors. FiberFlow Transmitter Optimum coupling of high-power laser...

Product Information 60 mm diameter probes have no adjustments and are watertight. Traceable calibration included The 60 mm diameter FiberFlow probes come with a traceable calibration of the conversion factor between Doppler frequency and velocity (the fringe spacing). A calibrated conversion factor reduces the measurement uncertainty and helps the user document the uncertainty of results, as required for scientific papers. 60 mm FiberFlow probe with beam translator and beam expander Options for 60 mm diameter probes For measurement through curved windows, long range applications, and for particle...

FiberFlow Optics for LDA and PDA Product Information 3D configuration with 5-beam probe For measurements in water or through a single small window, the 5-beam probe may be the only possibility. Position of beams at the front lens, and definition of co-ordinates The probe has five exiting beams in an arrangement as shown above. The centre beam combined with the blue and green beams form two fringe patterns at an angle to each other. Two velocity components in the horizontal plane, u1 and u2, are measured with this. The angle between the 2 green laser beams and between the two blue violet beams...