COTSWORKS can design and create unique optical sub-assemblies in our Fiber Optic Research Center of Excellence, using in-house optical design and TO-level prototyping. From complex designs of TO cans, custom Ultem or metal caps, and Kovar butterfly packages for hermetic packages to the use of light sources such as VCSELs, Fabry Perot, DFB lasers or LEDs and receivers of a variety of communication and sensing diodes, COTSWORKS can build custom optical sub assemblies, based on the scope of your needs.