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Optical Module ODI

Fiber and communications infrastructure knowledge brief Published 06 Dec 2023

Prepared for preliminary research by the ROGER FIBRE knowledge desk. Confirm optical interfaces, port or core capacity, electrical input and output, enclosure protection, thermal design and installation limits against current standards and product documentation.

An ODI optical module is a high-speed, pluggable optical transceiver that enables point-to-point data transfer between devices using standardized optical ports.

Overview

An OD

I (Optical Data Interface) optical module is part of a standardized optical interface designed for high-bandwidth communication between instrumentation and embedded systems. It allows devices such as digitizers, signal generators, DSP units, and storage systems to communicate over a pluggable optical cable without additional electrical or optical connections.

OD

I modules are optimized for applications requiring extremely high data rates, including 5G communications, military/aerospace systems, and high-speed data acquisition. Key FeaturesHigh-Speed Data Transfer: A single ODI optical port can achieve speeds up to 20 GBytes/s, and multiple ports can be aggregated to reach 80 GBytes/s. Standardized Optical Ports: ODI defines a uniform optical connector and optics, allowing interoperability across PXI, AXIe, LXI, or USB instruments.

Flow Control: Data transmission is managed using XON/OFF flow control to match the sample rate of connected devices, ensuring precise and efficient data transfer. Pluggable Design: The module is hot-swappable, enabling easy installation or replacement without powering down the system. Structure and FunctionODI optical modules function similarly to general optical modules used in fiber-optic communication: Transmitter (TOSA): Converts electrical signals from the device into modulated optical signals using a laser diode or LED.

Receiver (ROSA): Converts incoming optical signals back into electrical signals for processing. Functional Circuits: Include driver chips, automatic power control, and monitoring circuits to maintain signal integrity and performance. Optical Interface: Connects to the fiber optic cable, supporting multiple lanes (typically 12 fibers per direction) for high-throughput data transfer.

ApplicationsODI optical modules are particularly suited for high-bandwidth, low-latency applications where traditional electrical buses like PCIe or USB cannot meet speed or distance requirements. Common use cases include: 5G wireless systems for real-time signal processing. Phased-array radar and SDR systems requiring high-speed digital signal transfer.

High-speed data acquisition in laboratory and industrial instrumentation. Military and aerospace systems where reliability and long-distance optical communication are critical.

Summary

In essence, an ODI optical module is a specialized optical transceiver that enables ultra-fast, reliable, and standardized optical communication between devices in advanced instrumentation and embedded systems. Its design supports high data rates, modularity, and interoperability, making it essential for modern high-performance applications.

Optical Module ODI - ROGER FIBRE ATELIER [PDF]

Optical Module ODI

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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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