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Maintenance and Troubleshooting
Symptom: Poor contrast ratio
Possible Cause:
Pre-pulse:
Incorrect alignment of the output
Pockels cell
Incorrect alignment of the ¼ wave plate for the input Pockels cell
Post-pulse:
Incorrect alignment of the Input
Pockels cell
Incorrect adjustment of the ¼ wave voltage for Input Pockels cell
Corrective Action:
Contact your Spectra-Physics representative
Contact your Spectra-Physics representative
Contact your Spectra-Physics representative
Contact your Spectra-Physics representative
Symptom: Poor output beam quality
Possible Cause:
Incorrect pump beam alignment
Corrective Action:
Refer to Appendix C for pump beam alignment procedures.
Damage to optical components Check for optical damage; contact your Spectra-Physics representative if present.
Compressor vertical retro-reflector and/or horizontal retro-reflector are incorrectly aligned in the horizontal axis
Contact your Spectra-Physics representative.
Symptom: Optical damage in the amplifier cavity
Possible Cause:
Seed laser not well modelocked (CW breakthrough)
Partial restriction of the stretched spectrum
Failure to remove alignment tools from optical path after checking stretcher or compressor alignment
Incorrect alignment of amplifier cavity
Corrective Action:
Contact your Spectra-Physics representative.
Contact your Spectra-Physics representative.
Contact your Spectra-Physics representative.
Contact your Spectra-Physics representative.
8-5
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Questions & Answers
V V M
What are the pulse widths for the different Spitfire amplifier models?
What is the Spitfire HP?
How are different wavelength ranges achieved with the Spitfire models?
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