Client-Side 100G Transceiver is compatible with CLR4 and CWDM4.

Press Release Summary:

Consuming 3.5 W and offering optimized transmission via internal uncooled 1,310 nm 28 Gbps Directly Modulated Laser (DML) technology, QSFP28 client-side transceiver meets CWDM4 MSA and CLR4 Alliance optical interface specifications as well as IEEE 802.3bm CAUI-4 electrical interface specification. CLR4-enabled design provides low latency for cloud and financial applications, and unit is capable of operating without Forward Error Correction protocol on host card.

Original Press Release:

Oclaro Samples 100G QSFP28 Client-Side Transceiver Compatible with Both CLR4 and CWDM4 Specifications

- Supports both standards with a single design that features low power consumption of 3.5W

- Ensures high-quality transmission performance through Oclaro's uncooled 1310nm 28Gpbs Directly Modulated Laser (DML) technology

- CLR4-enabled design provides lower latency for cloud and financial applications

SAN JOSE, Calif. -- Oclaro, Inc. (NASDAQ: OCLR), a leading provider and innovator of optical communications solutions, today announced the sampling of a 100G QSFP28 client-side transceiver that meets both the CWDM4 MSA and CLR4 Alliance optical interface specifications, as well as the IEEE 802.3bm CAUI-4 electrical interface specification. Featuring a low power consumption of 3.5 Watts and high transmission performance quality through the use of Oclaro's internal uncooled 1310nm 28Gbps DML technology, the new QSFP28 client-side transceiver is ideally suited for 100G interconnections between data center switches in addition to interfaces in high-end routers and packet-optical transport systems.

"The key to our success in the 100G pluggable transceiver market has been our proprietary indium phosphide laser technology," said Yves LeMaitre, President of Oclaro's Optical Connectivity Business. "With our new QSFP28 100G transceiver, mega-scale data center operators will be able to transition from 40G to 100G on their existing single mode fiber infrastructure without significantly expanding footprint, cost or power consumption."

Data center architectures have evolved from shorter reach multi-mode fiber links to longer-reach single-mode fiber interconnections between switches typically running at 10G or 40G. Until recently, the only 100G standard specified by the IEEE for single-mode fiber links has been the 100GBASE-LR4 standard for 10km reach based on WDM wavelengths that require temperature stabilized lasers even though many links only need reaches up to 2km. To address these issues, the CWDM4 MSA developed a new interface standard based on CWDM wavelengths which removes the requirement for a thermoelectric cooler (TEC) and allows for a low-cost design at low power consumption. At the same time, a group of companies also formed a new CLR4 Alliance to generate an open, multi-vendor specification, and this group established and released a specification similar to the CWDM4 standard. Because this new standard did not require forward error correction (FEC), which can sometimes cause latency issues, it was much more desirable for applications such as high-performance computing, computer clustering and high-speed trading that cannot tolerate latency. Oclaro is a founding member of both the CWDM4 and CLR4 MSA, and, with its new 100G QSFP28 transceiver, Oclaro can now support both of these standards with a single design that offers low power consumption, low cost and high-quality transmission performance.

About the Oclaro 100G QSFP28 Transceiver

Below are a few features of the Oclaro 100G QSFP28 transceiver:

--  Includes Oclaro's proprietary uncooled 1310nm 28Gbps DML enabling both CWDM4 and CLR4 specifications for low power consumption without compromising transmission performance

--  Based on cost effective design leveraging Oclaro's manufacturing experience gained as market leading supplier of single-mode 100G client-side transceivers

--  Can operate without Forward Error Correction protocol on host card to deliver lower end-to-end latency

The Oclaro 100G QSFP28 transceiver is sampling today to customers. Production is expected to ramp gradually throughout 2016 with the introduction of 100G single-mode solutions inside data centers.

About Oclaro

Oclaro, Inc. (Nasdaq: OCLR), is a leader in optical components, modules and subsystems for the core optical, enterprise and data center markets. Leveraging more than three decades of laser technology innovation, photonics integration, and subsystem design, Oclaro provides differentiated solutions for optical networks and high-speed interconnects driving the next wave of streaming video, cloud computing, application virtualization and other bandwidth-intensive and high-speed applications. For more information, visit or follow on Twitter at @OclaroInc.

Copyright 2015. All rights reserved. Oclaro, the Oclaro logo, and certain other Oclaro trademarks and logos are trademarks and/or registered trademarks of Oclaro, Inc. or its subsidiaries in the US and other countries. All other trademarks are the property of their respective owners. Information in this release is subject to change without notice.

Media Contact Info:

Nicole Conley

Tanis Communications, Inc.


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