Quantum wave-converter (Q-waver)

To address the Army need, Luminit, LLC, proposes to develop a new plug-and-play fiber-coupled PPLN quantum wave-converter (Q-Waver) for quantum communications, based on Luminits patented substrate-guided wave hologram (SGWH) technology. Q-Waver, consisting of a commercial PPLN waveguide chip, coupled with a pair of SGWH wavelength division multiplexers (WDM) and SGWH filters, offers bidirectional difference frequency conversion (DFG) and sum frequency conversion (SFG) simultaneously in a single packaged device. In Phase I, Luminit will fabricate and assemble SGWH WDM couplers and SGWH filters for coupling with PPLN waveguides. Our subcontractor Digital Optics Technologies, Inc., led by Dr. Selim Shahriar, will test and characterize the SFG and DFG performance and demonstrate the feasibility of Q-Waver as a secure bridge to connect remote quantum systems (Rb D1 line 795 nm) through telecommunications fibers (1324 nm). In Phase II, Luminit will develop a complete packaged Q-Waver prototype product and deliver it to Army for evaluation. We plan to achieve TRL 3 by the end of Phase I and TRL 5 by the end of Phase II.