Q-Peak is currently developing a free space optical connector for high power MWIR (Mid-wave infrared) applications. In Phase I, Q-Peak was able to demonstrate mounting of chalcogenide fiber using a novel chalcogenide-based glass frit solder with minimal impact to transmitted power, and developed novel processes for applying this material to the bonded interface. In Phase II, Q-Peak will leverage its extensive free space optical connector design experience to develop a novel high power optical connector for common Mid-Wave Infrared fibers which is mechanically robust. Q-Peak will demonstrate an integrated fiber collimator/mode stripper. By leveraging a teaming agreement with NRL, Q-Peak will then demonstrate epoxy-free mounting of the fiber collimator assembly within a CTE-matched ferrule using a proprietary ultra-low Tg frit glass solder. In Phase II, Q-Peak will also work with NRL to concurrently develop a process for applying nanostructured (Motheye 0x9D ) AR coatings to the fiber collimator assembly. Finally, Q-Peak will leverage its extensive mechanical design talent to design a connector housing and mating interface which is robust against MIL-STD-810G environmental testing criteria through many mate-demate cycles.
Benefit: Q-Peak will immediately leverage the technology described here into direct IRCM application. In addition, the low loss, high power fiber connector technology described in the proposal will allow Q-Peak to further broaden its industry leading portfolio of 2 to 5 micron mid-IR laser products. Q-Peak will also apply the technology developed in this SBIR to its existing Firebow and Anthelion product lines to provide customers with modular solutions which will help to further distinguish Q-Peak laser products from its competitors.
Keywords: epoxyless, Fiber optics, chalcogenide, Mode Stripper, MWIR, Expanded Beam, Fiber connector
