Feb 28 2011
Manufacturer of precision optical products, REO has launched a range of cube beamsplitters for DWDM applications.
The non-polarizing beamsplitters can be utilized in dispersion and interleavers based on Gires-Tournois interferometer, and offer excellent path length matching and polarization insensitive operation for transmitted and reflected rays. These aspects provide the channel isolation and transmission features needed by metro and long-haul network applications.
REO uses dual-electric, ion beam sputtered (IBS) coatings and a refraction contrast material set to develop beamsplitters, which offer a reflection and transmission of 50% ± 1.5% across their functioning range. The p and s polarization parts are matched to below 2%.
The company also adopts adhesive-free bonding process called Activated Covalent Bonding (ACB) as well as a range of patented fabrication methods to create cubes that have an optical path variation between the two output rays of within 3 µm. The cubes exhibit low wavefront distortion with lambda /20 at 633 nm surface flatness and sub arcminute beam deviation precision.
The non-polarizing beamsplitters are made from fused silica substrates and are offered in 3 to 12.5 mm size range.
Source: http://www.reoinc.com/