These tunable filters are based on two proprietary technologies that utilize athermal multi etalon cavities or gratings, offering attractive features of covering near all wavelength, very low loss, unparallel low cost, set-and-hold operation, wide tuning range, ultrabroad. These tunable filters are based on two proprietary technologies that utilize athermal multi etalon cavities or gratings, offering attractive features of covering near all wavelength, very low loss, unparallel low cost, set-and-hold operation, wide tuning range, ultrabroad. The Lumentum tunable SFP+ module is a high performance tunable pluggable transceiver for use in the C-band window covering 1528 nm to 1566 nm. The module supports data rates from 9. 3 Gbps and is provided in an SFP+, MSA-compliant package. The optical transmitter utilizes the Lumentum. The Lumentum tunable SFP+ optical transceiver is a full duplex, integrated fiber optic transceiver that provides a high-speed serial link at 9. Explore engineer-authored content and a vast knowledge base with thousands of learning opportunities. Recently, the use of wavelength division multiplexing (WDM) in mobile front-haul networks has attracted attention because of the advantages of wider bandwidth and reduced use of optical fiber. In the. We produce a wide range of single-mode (SM), multimode (MM), and polarization-maintaining fiber (PM) fiber coupled tunable filters with industry-leading performance and value. These tunable filters are based on two proprietary technologies that utilize athermal multi etalon cavities or gratings.