A French company specialized in fiber-optic assemblies that withstand extreme environments

Our business | Milestones | Our values | Meet our team | Legal information

Our business

SEDI-ATI Fibres Optiques is a French company specialized in the design and manufacturing of custom made passive optical fiber components dedicated to customized, complex and extreme environments.

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SEDI-ATI core product lines include highly achromatic multimode couplers, multimode wavelength division multiplexers for sensing applications, pressure & vacuum hermetically sealed fiber optic feedthroughs, and fiber assemblies such as bundles & arrays.

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SEDI-ATI works with every optical fiber provider and can supply any type of optical fibers to manufacture its components.

Singlemode: low wavelength, polarisation maintaining
Multimode: gradient index, step index
Fields of application: UV-VIS-IR from 180 nm to 14 µm
Materials: silica/silica (doped, ultra pure…), silica/polymer (HCS hard-clad silica), sapphire, fluoride glass (fluorozirconate, fluoroaluminate, …), chalcogenides glass (CIR), silver halide (PIR), hollow fiber, plastic (standard and scintillant)…
Coatings: acrylate, nylon, ETFE, polyimide, metal (aluminium, copper, gold)…
Fiber core type: circular, square, rectangular, octagonal
Extreme environments: solarisation resistant, rad-hard, biocompatibility, extreme temperatures (from -273 °C to +1000 °C)…

We have a permanent stock of more than a hundred references of various optical fibers, and we have developed a strong expertise enabling us to choose the most appropriate optical fibers matching our customer’s applications.

Discover our major partners

Milestones

The company SEDI-ATI Fibres Optiques is the result of the merger in 2012 of ATI Optique, established in 1951 and its sister company SEDI Fibres Optiques, established in 1972. In July 2016 J-F Vinchant Holding Strategy (JFV@HS), chaired by Jean-François VINCHANT, accompanied by IDF Capital, acquired SEDI-ATI Fibres Optiques. This acquisition not only pursues what was built by the founders but also aims at boosting a new dynamic on the optical fiber components market, especially for extreme environments and for medical applications, with a stronger focus on exportation.

1951

ATI Optique

ATI Optique was founded by Louis Malavieille.

“Alliance Technique Industrielle”
R&D and manufacturing

1972

SEDI Fibres Optiques

SEDI Fibres Optiques was co-founded by Patrice and François-Louis Malavieille.

“Société Européenne de Distribution Industrielle”
marketing and sales

2012

SEDI-ATI Fibres Optiques

ATI Optique and SEDI Fibres Optiques merged their activities.

2016

Acquisition

SEDI-ATI Fibres Optiques was acquired by J-F Vinchant Holding Strategy. It is chaired by Jean-François VINCHANT and accompanied by IDF Capital.

2019

A rejuvenated visual identity

While retaining the fundamentals of the brand – name and colors, the logo construction lightens up to sign the beginning of a new phase.

A new corporate website

Learn more about SEDI-ATI, its products and their applications, though this new mobile friendly website in responsive design.

Major areas of focus

extreme environments
medical
export

Our values

Management values are essential not only for customers and partners but for employees as well.

These values are based on the following principles:

Maintain trustful relationships with partners to offer optimal solutions and technical advice
Maintain flexibility and agility for proven responsiveness.
Maintain the highest level of quality of products and solutions delivered.

This can be achieved through: