Where can I purchase a dielectric coated mirrors of reflectivity 99.98 in 650-750nm range for constructing a Fabri-Perot etalon?

We are planning to stabilize the laser (Solid state diode laser) using PDH technique. Our required FSR is 1GHz and finesse is around 2000. So we are looking for dielectric mirrors in reflectivity...

14 December 2015 2,666 7 View