Request InfoNKT Photonics A/SKoheras A/S has unveiled a diode-pumped distributed feedback fiber laser module, Koheras Basik, which provides 100 to 200 mW of single longitudinal output, linewidth of <1 kHz and low phase noise. The 43 x 117 x 75-mm module is equipped with a Lemo input interface and 3-mm jacketed single-mode output fiber (optionally polarization-maintaining). The devices can be supplied as fast tunable lasers (>20 kHz) and are designed for operation between 1030 and 1090 and 1535 and 1570 nm. 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