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Connet 0.5um band continuous single frequency fiber laser is realized by frequency conversion of 1.0um high power single frequency fiber laser. The frequency conversion crystal options include PPLN or LBO, which are suitable for different output power.
Connet uses CoSF-D or CoSF-R single-frequency fiber laser as the 1.0um band seed laser. Its linewidth can be narrowed to less than 20kHz, with extremely low phase noise and relative intensity noise (RIN), stable linear polarization, which is beneficial to achieve high efficiency frequency doubling.