WARWICK, R.I., May 3 -- Infinite Group Inc. has named Jeff Bullington president of its recently formed Infinite Photonics Inc. subsidiary. IP is focused on commercialization of Infinite's proprietary grating coupled surface emitting laser diode technology. Bullington has significant experience with semiconductor start-up companies. His first, Krysalis Corp., was initially funded by venture capital firms and eventually sold to National Semiconductor.