Background ABG samples are often obtained in trauma patients to assess shock severity. Venous blood gas (VBG) sampling, which is less invasive, has been widely used to assess other forms of shock. The ...

We present an Yb: YAG thin-disk oscillator providing a tunable linewidth of 50-pm via VBG-based feedback. Output powers of up to 2 W have been recorded while maintaining an excellent spatial ...