The FQCW266 series DPSS-CW D UV lasers provide up to 1 W at 266 nm in single-mode operation. Compared to other CW lasers at 266 nm, the FQCW266 systems feature a long coherence length of more than 1000 m, a narrow linewidth (<300 kHz), and last but not least, low power consumption of less than 200 W (100 W on average). The central wavelength can vary between 266.020 nm and 266.070 nm in air. The wavelength is optimized to the gain maximum of the laser medium. In general, the absolute wavelength is set to 266.050 nm +/- 0.003 nm (air). For all models it is possible to operate the laser with 10 % to 110 % of the nominal output power (i.e. 1 mW …11 mW in 0.1 mW steps). The control is performed via software. The sealed housing makes the laser comparatively maintenance-free and especially suitable for industrial 24/7 operation.
The FQCW266 features a resonant frequency conversion stage that emits a fixed wavelength of 266 nm using a dedicated pump source. The laser head is sealed in an aluminum housing that allows operation in a wide range of environmental conditions. Heat dissipation from the laser head is achieved by air cooling – no further equipment (chiller, fan, etc.) is required.
The FQCW-266 plug-and-play laser is supplied with a control unit that allows either push-button control or remote control via a serial interface (RS232 and USB). The lasers provide excellent beam properties with M² <1,3, beam divergence <0,8 mrad (full angle), low noise below 0,5 %rms (100 kHz-10 MHz) and outstanding power stability (<1 % in 8 h). The FQCW266 is a compact solid-state laser in a housing engineered for completely hands-free operation.