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Cristal Laser Crystal (Fully Resistant Potassium Titanyle Phosphate – KTiOPO4)

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KTP crystal with better resilience to grey-track, able to process components with apertures up to 10x10mm.


Cristal Laser


Crystal Laser Non-linear Crystals

Availability: Ships in 15 to 20 Business Days

Pickup: Check with team.

Availability: Ships in 15 to 20 Business Days



  • Second Harmonic Generation
    • Grey-Track resistant
    • Large non-linear coefficient (~3pm/V)
    • Low bulk absorption (<100ppm/cm at 1064nm)
    • Small walk-off
    • Applications:
      • Mid-power CW lasers
      • High repetition rate, high average power lasers for material processing or surgery (average power up to 50W at 532nm)

Potassium Titanyle Phosphate – KTiOPO4

It is well known that most of flux-grown KTP crystals suffer from blackening and efficiency breakdown ("grey-track") when used during SHG process of 1064nm at high average power levels and repetition rates above 1 kHz.

According to KTP users, grey-track gives rise to harmonic power instability (for many intra cavity doubling cw laser), efficiency drop and crystal blackening (for high power-high repetition rate laser) and sometimes the process is accompanied by beam distortion (when the beam is strongly focused within the crystal).

For this reason, Cristal Laser has developed ("fully resistant") on the basis of modified fluxes which allows improving the stoechiometry within the KTP crystal lattice.

As a consequence, this material exhibits a better resilience to grey-track. Recent improvements now enable us to process components with apertures up to 10x10mm.


Applications Laser Systems
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