Windows & Filters

Perkins Precision Developments (PPD) manufactures multi-layer dielectric thin film coated laser windows, interference filters and optical beam splitters for prototype, R&D and OEM applications. Because we utilize Ion Beam Sputtered (IBS) coating technology, our AR-coated parallel windows and matched wedge pairs are durable and easy to clean. In addition, they demonstrate low losses from absorption and scatter, as well as high damage thresholds, making them ideal for both intra-cavity or extra-cavity laser applications.

 

Plane parallel windows, Brewster windows and color glass filters are available in a variety of shapes and sizes from 2x2mm² to > 4” in diameter and with parallelism as low as 1 arcsecond. PPD manufactures precision plano substrates in a wide range of materials including fused silica, fused quartz, suprasil, N-BK7, YAG, Silicon, SF11 and other high index glass materials. We also offer custom colored glass filters using Schott, O’Hara and Hoya glasses for detection, attenuation and other broadband applications such as fluorescence microscopy and spectroscopy.

 

Custom low-loss anti-reflection (AR) coatings with reflectivity less than 0.1% per surface can also be deposited on customer-supplied substrates up to 4 inches in diameter. Click here to see recent LDT data for an AR coating at 1064nm.

 

Please send us your requests for precision laser optics and thin film coatings for critical one-off projects as well as volume OEM requirements. Or contact us for information on super-polished substrates with surface roughness less than 1Å RMS.