Alliance Fiber Optic Products, Inc. (NASDAQ:AFOP) was set up in 1995 and now is based in Sunnyvale, California. The company engages in fiber optic components and integrated modules for communications equipment. Connectivity products - including connecting optical fibers and components, adapters, and cable assemblies; fused and planar fiber optical splitters and couplers; optical tap couplers and ultra low polarization dependent loss tap couplers; amplifier wave division multiplexers (WDM) couplers; optical fixed attenuators; fused fiber WDM couplers; and fiber array units. Optical passive products - including wavelength division multiplexing (WDM), amplifier filter WDMs (for network applications, such as splitting wavelengths and connecting lasers), dense wave division multiplexers (DWDMs), coarse wavelength division multiplexers (CWDM, multiplex ing optical signals of different wavelengths on a single fiber.), compact coarse wavelength division multiplexers (CCWDMs, a package less than 1/4 the size of conventional CWDM modules), add/drop DWDM filters, optical isolators, optical bypass switches, and automatic variable optical attenuators (used in applications of DWDM networks). The Company also offers optical add-drop modules (OADMs), for CWDM networks, adding or dropping from one to fifteen channels.