850nm & 900nm

Cisco QSFP-40/100-SRBD Compatible QSFP 40G/100G SR BIDI Optical Transceiver consists of two transmit and receive channels in the 832-918 nanometer wave length range.

F-tone QSFP28-100GSRBD QSFP 100G Bi-Directional Optical Transceiver supports 100m transmission over SMF with duplex LC connectors, which is with DDM function.