OIF announces ELSFP Implementation Agreement

Created August 8, 2023
News and Business

OIF has unveiled the External Laser Small Form-Factor Pluggable (ELSFP) Implementation Agreement (IA), defining a front panel pluggable form factor tailored to co-packaged optical systems and other multiple laser external laser source applications. The ELSFP IA introduces the first multi-sourced future-proof front panel pluggable external laser source form factor to address the evolving needs of the industry. The IA offers numerous benefits, including definitions for the placement of laser sources at the front panel, the coolest section of the system, enhancing system reliability and allowing for efficient “hot-swap” field replacement when necessary.

The ELSFP uses a multi-fibre blind-mate optical connector positioned at the rear of the module. This strategic design mitigates potential eye-safety risks, particularly in applications where high optical powers are involved. Each ELSFP can supply optical power to one or more optical engines, all seamlessly managed by OIF’s Common Management Interface Specification (CMIS).

The IA also defines interoperability for mechanical, thermal, electrical and optical parameters as well as establishing standard power ranges and fibre configurations to focus the industry’s development. The final feature unique to ELSFP is the pass-through option which allows systems architects to maximise face plate real estate, solidifying ELSFP’s position as a versatile and adaptable solution for various optical networking applications.

“The ELSFP IA represents a significant milestone for the optical networking industry,” said Jeff Hutchins, OIF Board Member and Physical & Link Layer (PLL) Working Group Co-Packaging Vice Chair and Ranovus. “By providing a front panel pluggable external laser source form factor, we’re empowering network operators and equipment manufacturers with a cutting-edge solution that not only improves reliability but also paves the way for future innovations. The ELSFP’s flexible design accommodates the ever-changing needs of the industry, enabling seamless integration with OIF’s 3.2T co-packaged optical module project and beyond.”

“The ELSFP has already garnered a favourable industry reception through its potential to propel external laser source applications forward, as evidenced by strong collaboration among OIF member both in writing the IA and the substantial engagement in numerous interoperability demonstrations facilitated by OIF,” said Jock Bovington, Cisco, and editor of the OIF ELSFP IA.

For more information, visit www.oiforum.com


This article was written
by Peter Dykes

Peter Dykes is a independent telecoms and technology journalist who has over that last 30 years written for a wide range of B2B publications and companies. A former BT engineer, he specialises in networks and associated support systems. He is currently Editor of Optical Connections.