SWDM, which stands for Shortwave Wavelength Division Multiplexing, is a technique in fiber optic transmission for using multiple short light wavelengths to send data over the same medium. It is a new WDM technology proposed and defined by the SWDM MSA Industry Alliance. This technique enables bidirectional communications over a. Wavelength division multiplexers are fundamental to the functioning and performance of integrated photonic circuits, with applications ranging from optical interconnects to sensing and quantum technologies. Unlike conventional CWDM and. Note:For device with connector,IL is 0. 3dB higher, RL is 5dB lower, ER is 2dB lower. This allows multiple channels of data to be transmitted simultaneously.