THE BASIC PRINCIPLES OF PPKTP CRYSTAL

We've acquired SPDC810 and hoped to make use of polarization-entangled photons to start with. But It appears this device does not have polarization-entangled photons. I'm wondering if you could possibly update/modify our SPDC810 to make it emit entangled photons.I hope this electronic mail finds you very well. I'm composing to inquire with regards