The 4062NF KTP Broadband Phase Modulator is a 500 to 900 nm, 0.1 to 250 MHz EOM offering increased optical damage thresholds of more than five times that of our LiNbO3 modulators. With patented and patent-pending designs, these electro-optic modulators achieve high efficiency for high modulation depths, too. As with all of our modulators, these modulators have low insertion losses and extremely low unwanted residual amplitude modulation. And, using them is easy: simply pass the beam through pre-aligned mechanical apertures for the optimal optical performance. 8-32 and M4 mounting holes.