780 nm (775 nm, 778 nm) and 515 nm (532 nm, 546 nm) single frequency lasers
DSE and DSY are a series of single frequency narrow linewidth low-noise lasers with wavelengths of 780nm (775 nm, 778 nm) or 515 nm (532 nm, 546 nm), featuring a wide range of thermal wavelength tuning and fast tuning using an external PZT driver. The key parameter of this series of lasers is the ultra narrow linewidth based on longitudinal single-mode. In the standard version, these models have an optical output from the laser head to free space, but they can optionally be equipped with PM fiber output using fiber ports. This mode can also provide an additional low-power optical output for wavelength detection.