Supplier: Passive components and subsystem products for fiber optical communication field such as metro network, access network, fiber channel, FTTH, FTTB and fttx, active components: GBIC, SFP BIDI, DWDM SFP, CWDM SFP, copper SFP, 10g XFP, CWD XFP, DWDM XFP, 10G SFP, CWDM SFP, X2, DWDM X2, xenpak, DWDM xenpak