Abstract: A system for providing offer codes to customers, the offer codes being associated with rewards in exchange for completion of feedback surveys for a particular business following a transaction between the customer and the particular business. In various embodiments, the system is configured to provide a customer with an offer code for a particular business. In response to receiving confirmation that the customer has completed a qualifying transaction under the offer code with the particular business, the system, in various embodiments, is configured to notify the customer of an available feedback survey. In response to receiving the completed feedback survey from the customer, the system may be configured to provide compensation to the customer, which may be based at least in part on terms and conditions associated with the offer code.

Abstract: Wave vector division multiplexing (“WVDM”) is a method of free-space multiplexing for optical communications. In WVDM, wave vectors of individual laser beams are manipulated so that each individual laser beam has a unique wave vector. These individual laser beams are multiplexed into an aggregate beam, which is transmitted to a receiver. The receiver separates the individual laser beams on the basis of their unique wave vectors. One area where WVDM is useful is in quantum cryptography. WVDM can also be combined with traditional wavelength division multiplexing (“WDM”) to increase throughput even further.