SANTA CLARA, Calif., Oct. 23, 2013 — The OBIS Galaxy fiber optic beam combiner from Coherent Inc. combines the outputs of up to eight separate lasers into a single-mode fiber for bioinstrumentation applications including flow cytometry and confocal microscopy. Using FC connectors, lasers can be replaced with a >85% repeatability in power at the output fiber. This allows lasers to be “hot swapped” in the field to add extra wavelengths or to upgrade the power at specific wavelengths. The device uses refractive, passive optical components and a novel fiber with constant numerical aperture over the entire 405- to 640-nm wavelength range. It operates over a temperature range from 10 to 50 °C and is resistant to shock and vibration.