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Illuminated Blue Fiber Optics with Spectrum Close-up View.

Optical Solutions

An extensive lineup of advanced Molex solutions brings the benefits of optical technology to customers In telecommunications, datacom and other demanding industries. Explore our portfolio of advanced optical solutions covering optical connectivity, opto-electronic components and wavelength management products.

Connectivity Solutions


Fiber Optic Connectors and Adapters

As a leading supplier of advanced fiber optic components, Molex has an extensive product offering that includes a full range of fiber optic connectors and adapters. Molex's experience and resources provide customers a wide range of design, manufacturing and value-added services.

Fiber Optic Connectors and Adapters

Fiber Optic Cable Assemblies

Molex gives customers a specialized portfolio of protective, precision-tested fiberoptic cable assemblies in a variety of lengths. Each offering helps optimize performance and simplify installation—allowing system architects to achieve more efficient fiber routing and repeatability across high-density applications.

FTTP and PTTP Industrial Optical Assemblies

Optical Flex Circuits

FlexPlane Optical Flex Circuits provide versatile, high-density routing on a flexible substrate, and Routed Ribbon Solutions offer cable management and mitigate airflow challenges for low-profile Network interface cards (NICs), switch fabric modules, complex shuffling and backplane applications.

FlexPlane Optical Flex Circuits

High-Radix Optical Circuit Switch (OCS) Platform

As hyperscalers and neo cloud providers look to improve data center efficiency for AI training and inferencing at scale, the High-Radix Optical Circuit Switch (OCS) Platform from Molex supports up to 544x544 ports with a roadmap to support 1,000+ ports, enabling flatter architectures with fewer switches. The platform features a low insertion loss design for longer reach and fewer amplifiers and regenerators, simplifying optical-power budgeting and enabling incredibly fast, energy-efficient and future-proof designs.

High-radix optical circuit switch platform.

Co-Packaged Optics


ELSFP Interconnect System

Co-packaged optics (CPO) provide direct-to-chip connections that help data centers meet AI-driven demands for more bandwidth. The External Laser Small Form Factor Pluggable (ELSFP) system enables moving the laser power source away from the chip, avoiding performance degradation and supporting next-generation speeds.

ELSFP Optical Connector with two 12-fiber MT ferrules.

Versatile Format Interconnect (VFI)

AI-driven speed demands are shifting signals from the PCB to direct-to-chip connections. The modular VFI system uses industry-standard MT ferrules and rugged, plug-and-play modules to provide compact CPO connections that shorten integration time, fit into dense architectures and enhance scalability.

Versatile Format Interconnect (VFI) 1x8 backplane connector assembly.

VersaBeam EBO Expanded Beam Connectors

These high-performance, low-maintenance, reliable and scalable fiber connectivity solutions support next-generation data center architectures. Innovated expanded beam connector options integrate 12, 16 or 144 fibers into a single connector, simplifying cable routing and offering high fiber density.

Molex Expanded Beam Connector

Optoelectronic Solutions


Optical Transceivers

Next-generation optical interconnect products powering global data networks.

4 x 100G QSFPDD

Outside Plant (OSP) Fiber Connectivity


Demarcation Boxes

Enabling easy, fast and unobtrusive termination for incoming service cables on the building exterior, Demarcation Boxes are rugged and UV-resistant enclosures that protect and organize fiber optic connections and splices where they connect to the building’s internal infrastructure.

A Molex optical Demarcation Box with an optical cable, fiber optic adapter and mounting fasteners.

Drop Cables

Drop Cables provide easy plug-and-play connections from the Multiport Service Terminal to the home or business, accelerating installation work by reducing splicing requirements in the network distribution portion. Rugged construction with bend and kink protection facilitates aerial, direct-buried or duct installation.

A Molex fiber optic drop cable with cap installed.

Multiport Service Terminals

Factory tested and IP68-rated to ensure reliable performance and reduced cost, Multiport Service Terminals (MSTs) use industry-standard form factors and straightforward plug-and-play designs for user-friendly installation, fast deployment and flexible interoperability.

An eight-port Multiport Service Terminal (MST) shown with a cable and mounting hardware.

Optical Splice Protection Sleeves

Moisture-resistant Optical Splice Protection Sleeves provide fusion splice protection in field fiber splicing, manufacturing and optical fiber closure applications. A stainless steel rod adds rigidity, and an ethylene vinyl acetate inner sleeve ensures full fusion protection after shrinkage.

Molex Optical Splice Protection Sleeves.

Quasar OptiX Field Mountable Connectors

High-performance Quasar OptiX Field Mountable Connectors (FMCs) simplify the termination of fiber optic cables in the field by enabling installers to avoid fusion splicing, epoxying and polishing. Factory-polished connector interfaces and high connector retention forces reduce signal loss and ensure exceptional reliability.

A QuasarOptiX Field Mountable Connector in a disassembled state.

Specialty Optical Fiber


Specialty Optical Fiber - Polymicro and Fiberguide

Custom and standard optical fiber delivers dimensional control and tight tolerances that are designed to withstand harsh-temperature, chemical and radiation environments.

Specialty Optical Fiber - Polymicro and Fiberguide

Wavelength Management


Optical Amplifiers

Complete optical amplifier portfolio that includes EDFA, Raman, or EDFA-Raman hybrid covering C and L-bands, and are available at different levels of integration from gain block, module with full control, to terminal or in-line amplifier line cards, rich in features as FGA, VGA, transient control, gain tilt compensation/dynamic gain equalization, switchable gain range.

Optical Amplifiers

Optical Line Solutions

Focusing on optical, mechanical, electrical, firmware, and software design and integration. Vertical integration and extensive experience in optical packaging and assembly optimization enable us to meet the most challenging performance specifications and space requirements.

Optical Line Solutions

Wavelength Selective Switch (WSS) Modules

Wavelength Selective Switches (WSS) provide agility in optical networks via their ability to reconfigure traffic and enable bandwidth sharing at the optical layer. Molex offers WSS products in Single- and Twin- formats, with port counts ranging from Single 1x2 to Twin 1x32+ products.

Wavelength Selective Switch (WSS) Modules

Optical Components and Modules

Everything you need to build an optical network from end-to-end. Thin-film filter and PLC based AWG for multiplexing, a full suite of components for optical amplification use, optomechanical or MEMS-based switches for protection or surveillance application, Tap PD for power monitoring and VOA for power management, circulator for bi-directional transmission, advanced component as TF, DGE for building agile networks.

Optical Components and Modules