if u have one of these
JENOPTIK Lasers you have a problem haha
The RGB laser system consists of a fiber coupled diode laser pump module, a power supply, a diode current supply, a diode plug-in unit with a control subsystem, a cooling unit and a laser head. The complete RGB laser system is shown
in Fig. 2.
Fig. 2 RGB Laser System with dimensions of 1140*1150*600 mm3 700 lbs
The laser head consists of six stages, a diode-pumped oscillator, a diode-pumped amplifier, an optical parametric
oscillator, a non-linear frequency stage, a delay unit and a modulation unit with acoustooptic modulation, white
color balancing and fiber coupling (Fig. 3). Modelocked pulses with a full-width-at-half-maximum (FWHM) of 7 ps
and a wavelength of 1064 nm are amplified to an average output power of 42 W. Subsequently the pulses pass a
non-linear crystal where part of the light is converted to green light (532 nm). The non-converted IR-power is partly
used to synchronously pump an OPO and partly used for sum frequency mixing (SFM) with the OPO output at 1535
nm. The generated red light (628 nm) is either mixed with the non-converted signal radiation to generate blue light
at a wavelength of 446 nm or transmitted to yield the red output.