Oclaro Inc of San Jose, CA, USA (which provides components, modules and subsystems for optical communications) has announced qualification of its non-hermetic 25Gb/s 1.3μm distributed feedback (DFB) laser diodes for 100Gb/s transceivers. Featuring low operating current at high temperatures, the 25Gb/s DFB is a key component for enabling data-center operators to transition faster to highly meshed 100Gb/s connections over single-mode fiber.
"The 25Gb/s DFB laser diode is a critical component at the core of a new generation of 100Gb/s transceivers optimized for data-center switching applications such as QSFP28 CWDM4/CLR4," says Yves LeMaitre, president, Optical Connectivity Business at Oclaro. "By making our lasers suitable for use in non-hermetic packages, we are enabling a faster adoption of proven telecom-grade laser technologies into data-center environments," he adds. "Oclaro is strongly focused on the market transition to distributed cloud networking and will continue to leverage its optical expertise to deliver cost-optimized, reliable and high-performance 100Gb/s solutions."
The 25Gb/s DFB laser diode is designed for 100Gb/s and 25Gb/s optical transceivers used in transmission client interface, high-end spine switch/core router interfaces and large-scale data-center meshed networks. Leveraging the firm's experience in high-speed laser design, the 25Gb/s DFB laser diode features higher bandwidth and lower power consumption, allowing transceiver module designers to migrate to non-hermetic designs to further reduce costs and footprint.
Additional features of the 25Gb/s laser diode include the following:
eye mask performance with more than 5dB extinction ratio at 60mA driving current at 70°C of transceiver module level; leveraging Oclaro's design and mass-production technology of InAlGaAs-MQW (multi-quantum well) and ridge waveguide (RWG) structure to deliver optimum optical performance; and completing the non-hermetic test compliant with the Telcordia GR-468-CORE issue 2 including non-hermetic damp heat/damp heat for powered non-hermetic devices.
The 25Gb/s DFB laser diode is now fully qualified and available for production.
