Light Conversion ORPHEUS - 9. TROUBLESHOOTING GUIDE; 9.1 White Light Generation Does Not Occur;Is Instable; 9.2 Low Parametric Output or No Output at All; 9.3 Low Second Harmonic Generation Efficiency

ORPHEUS User’s Manual
38 support@lightcon.com Light Conversion
9. TROUBLESHOOTING GUIDE
This section lists the possible problems that might occur while operating ORPHEUS. With each
symptom possible causes and their solutions are presented.
9.1 White Light Generation Does Not Occur/Is Instable
Cause
Corrective action
Pump pulse intensity is too low/high
Refer to paragraph 7.5.
WLG substrate is damaged
Refer to paragraph 7.4.
9.2 Low Parametric Output or No Output at All
Cause
Corrective action
White light generation is instable/no generation
Refer to paragraph 9.1.
Second harmonic generation is inefficient
Refer to paragraph 9.3.
Motors are not at their intended positions
Reset all OPA motors through the “Motors” section.
Beam misalignment inside ORPHEUS
Refer to paragraph 7.3 and contact Light Conversion
support team for an additional help.
9.3 Low Second Harmonic Generation Efficiency
Cause
Corrective action
SHG Crystal is not at phase matching angle
Optimize the angle through “Motors” section in the
WinTOPAS software.
Pump pulse compression is not optimal
Optimize the pulse compression of the pump laser while
monitoring the output power of second harmonic or
Signal.
Low pump pulse contrast
Adjust the timing of Pockels Cells while monitoring the
second harmonic of pump or Signal power.