Spectrally Tunable Collimated Pulsed Solar Simulator

There is a need for characterization of multi-junction solar cell based test coupons under collimated sunlight for both terrestrial and space applications. These applications include solar cell angle measurements and concentrator systems. The U.S. Naval Research Laboratory (NRL) has modified a 3-zone Spectrolab LAPSS (Large Area Pulsed Solar Simulator) to provide a tunable spectrum with a 1° collimation for testing of solar arrays. NRL has added filters and a complete measuring system capable of testing individual cells and small concentrator coupons requiring collimation comparable to the sun.