II‐VI has announced a miniature tunable optical filter for high bit rate DWDM transmission applications. To satisfy the continuing demand for increased capacity in metro, regional and long‐haul networks, as well as datacenter interconnects, system designers are employing advanced modulation formats such as 64QAM with Nyquist filtering to increase the per‐channel bandwidth from 100 to 400 Gb/s.
II‐VI’s miniature MEMS tunable optical filter is designed for such advanced transceivers, improving signal fidelity and reach by filtering the noise generated at the transmitter. This compact tunable filter, with its 4.8 mm profile, is designed to be embedded in transceivers with high density form factors such as CFP2 and OSFP.
“Beyond 100 Gb/s, tunable filters are increasingly required to maximize the optical signal to noise ratio in DWDM transceivers and achieve the desired reach,” said Dr. Sanjai Parthasarathi, Vice President, Product Marketing and Strategy, Optical Communications Group.
“II‐VI develops transceiver‐embedded tunable filters from our existing products based on MEMS and etalon technologies. Our new mini‐MTOF is a second-generation design that combines best‐in‐class size and out‐of‐band isolation performance.”
The company’s portfolio of miniaturized components for transceiver‐embedded amplification includes hybrid‐passives and uncooled 980 nm pump lasers with in‐package wavelength‐stabilizer technology. The mini‐MTOF is expected to be generally available from June 2017.
25 Gb/s detectors for active optical cables in datacenters
II-VI is also introducing its 25 Gb/s detector chip arrays for active optical cables and transceivers deployed in datacenters.
The mainstream adoption of social media and cloud computing is fueling the growth of short‐ reach optical connectivity in datacenters. II‐VI’s 25 Gb/s detector chips enable 100 Gb/s short‐reach transmission in active optical cables and transceivers.