Abstract: Implementations of a revenue-based advertising auction are described. Bidders submit advertisements to be assigned to ad slots such that each advertisement has an associated bid vector that indicates a value known to the auctioneer that the bidder is offering to pay for placement of the advertisement in each of the ad slots, respectively. Advertisements are assigned to ad slots on a web page such that a community revenue is maximized given the available advertisements and bid vectors A price is calculated for each advertisement allocated to an ad slot based on a contribution to the community revenue attributed to the advertisement.

Abstract: Autocorrelation technique for measurement of width of optical short pulses based on polarization effects. The optical pulse is split into two orthogonal polarization states and these two replicas have a relative delay which depolarizes the pulse. By tuning the relative delay of the two replicas and measuring the degree-of-polarization (DOP) of the pulse or the induced polarimetric four-wave mixing (FWM) through nonlinear media, the pulse's temporal width can be accurately derived. The technique can be all-fiber-based, wavelength independent, cost effective, applicable to low optical power, and does not require significant optical alignment.

Abstract: Techniques and systems for mitigating polarization-related signal degradation or distortions in birefringent optical links based on intra-bit polarization diversity modulation.