Can The LPC-NIR be used with femtosecond Ti:Sapphire lasers?
Yes, Many of our Ti:Sapphire LPC users ask us about the pulse width broadening (caused by dispersion) from the LPC. We have customers using 20 femtosecond Ti:Sapphire lasers but they generally operate them at pulse widths greater than 100 femtoseconds. The pulse broadening effect on femtosecond lasers is related to the thickness of the glass that the beam must travel though. Any material which the beam passes through will increase the pulse width. We have been unable to get information on the exact value of the pulse width broadening from our customers and we are unable to calculate this value. The effect will be dominated by the “glass” which the beam passes through, this includes about 12mm of BK-7, 5mm each of FK-5 and Calcite (polarizer), 1.4 mm Corning 7059F (cell). The remaining materials; LC, AR coatings, and polyimide, will not have significant effects. This totals approximately 24mm of material which is significantly less than any other AO or EO modulator system available.
