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SM Expanded Beam Connector / Connectors & Terminations

IDIL Fibres Optiques has developed a new high power connector technology called expanded beam fiber optic connector. These connectors are based on graded index expanded beam micro lenses.

SM Expanded Beam Connector summary

While industry is asking for more power handling optics, IDIL answers perfectly by providing expanded beam fiber optic connectors (expanded beam connector) which enlarge beam waist and reduce power density at the plug connection. By welding single mode fiber and the right length of graded index fiber, these connectors allow high power handling capacity and low insertion losses.

Moreover, their small size and the high contamination tolerance make them very useful in a large spectrum of applications. Our single mode graded index expanded beam connectors are resistant to water, dust and oil. These connectors are available in FC and ELIO (Souriau).

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    Features
    • High power handling capacity (3W typical)
    • Low insertion loss
    • Low return loss
    • Small size
    • Reliable optical performance in harsh environment
    Applications
    • Telecommunications
    • Fiber optic instrumentation
    • Medical & Biotech
    • Aerospace & Space
    • Switches
    • Laser diode coupling
    • Optical waveguide coupling
    Specifications
    SMF GIF CONNECTOR
    Insertion loss0.4 dB typical
    0.6 dB max
    Return loss-50 dB (0° polished with contact)
    -60 dB max (with APC)
    Wavelength range1035 nm - 1550 nm
    Optical power handling3 W typical
    10 W max
    Beam diameter20 - 35 µm typical (higher on demand)
    ConnectorsFC, ELIO (Souriau)
    Operating temperatureFrom - 20°C to + 85°C
    Ferrule typePC (APC possible for beam diameter = 25 µm)
    How it works

    These high power connectors use graded index fiber on one mating end (connector 1) to collimate and expand the light beam on the connector 2 which refocus the light back into the fiber core.

    Beam waist is typically about 60 µm at the extremity of the graded index fiber. However, depending on your application, it can be easily increased by using bigger fibers and ferrules.

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