The MWDM shifts 3.5nm to the left or right on the basic of the wavelength of the first 6 channels of CWDM to extend to 12 channels. At present, HYC's MWDM series products can be mass produced and delivered stably. HYC is a professional ODM & OEM manufacturer of fiber optic products. Main products are: fiber optic connectors,adapters, WDM, PLC splitter, MEMS optical switch and other optical passive basics devices.