Xtellus, Inc. provides reconfigurable optical add/drop multiplexers (ROADM) technology and dynamic optical modules for agile optical networking systems. It offers wavelength selective switches, wavelength blockers, edge wavelength selective switches, and ROADM modules with integrated power monitoring and muxes/demuxes; and liquid crystal optical processors. Xtellus, Inc. was founded in 2000 and is based in Morris Plains, New Jersey. It has manufacturing and development facilities in Israel and South Korea. The company also has a research and development facility in Jerusalem, Israel. As of December 17, 2009, Xtellus, Inc. operates as a subsidiary of Oclaro, Inc.