Hermetic fiber optic feedthroughs

Hermetic fiber-optic feedthroughs for vacuum and pressure (up to 1000 bars)

Key features

  • from vacuum to 1000 bars
  • 10-8 mbar.l/s hermeticity
  • broad wavelength range
  • single-channel
  • PM, SM or MM fibers
  • FC/APC, FC/PC or SMA adapters

Hermetic fiber-optic feedthroughs for vacuum and pressure (up to 1000 bars)

The KTRAV-M12 hermetic fiber-optic feedthroughs are suitable for vacuum and pressure applications up to 1000 bars. They ensure a high level of hermeticity better than 10-8 mbar.l/s.

They are built with an internal fiber rod identical to the fiber used upstream and downstream.

These hermetic fiber-optic feedthroughs can be made with polarization maintaining [PM] fibers as well as with any singlemode [SM] fibers. They can also come with multimode [MM] graded-index [GI] fibers or step-index [SI] fibers.

For fibers with a cladding diameter of 125 µm maximum, they can be terminated with FC/APC or FC/PC connectors. For core diameters up to 1000 µm, they come with SMA termination.

As an option, the KTRAV-M12 hermetic feedthroughs can be qualified according to standard NF EN 60079-1 European ATEX Zone 2 Category 3 (d IIIG lie; explosive environment).

Please contact us to discuss your specific requirements.

  • KTRAV-M12-FCAPC

    Pressure
    500 bars @125°C ; 1000 bars @20°C
    Hermeticity
    10-8 mbar.l/s
    Sealing technology
    epoxy
    Housing material
    stainless steel 304L
    Panel drilling diameter
    12.2 mm 0/+0,3
    Panel thickness
    1 mm min.; 20 mm max.
    Tightening torque
    25 Nm max.
    Adapter interface
    FC/APC
    Fiber type
    PM, SM, MM GI50, MMGI62.5, MM SI with 125 μm cladding
    Insertion loss
    < 1.5 dB max. @1300 nm (0.7 dB typ. @1300 nm on SMF128)
    Operating wavelength range
    200-2000 nm; depending on the fiber
    Operating temperature range
    -55°C to +125°C
    Storage temperature range
    -55°C to +200°C

  • KTRAV-M12-FCPC

    Pressure
    500 bars @125°C ; 1000 bars @20°C
    Hermeticity
    10-8 mbar.l/s
    Sealing technology
    epoxy
    Housing material
    stainless steel 304L
    Panel drilling diameter
    12.2 mm 0/+0,3
    Panel thickness
    1 mm min.; 20 mm max.
    Tightening torque
    25 Nm max.
    Adapter interface
    FC/PC
    Fiber type
    PM, SM, MM GI50, MMGI62.5, MM SI with 125 μm cladding
    Insertion loss
    < 1.0 dB max. @1300 nm (0.3 dB typ. @1300 nm on SMF128)
    Operating wavelength range
    200-2000 nm; depending on the fiber
    Operating temperature range
    -55°C to +125°C
    Storage temperature range
    -55°C to +200°C

  • KTRAV-M12-SMA

    Pressure
    500 bars @125°C ; 1000 bars @20°C
    Hermeticity
    10-8 mbar.l/s
    Sealing technology
    epoxy
    Housing material
    stainless steel 304L
    Panel drilling diameter
    12.2 mm 0/+0,3
    Panel thickness
    1 mm min.; 20 mm max.
    Tightening torque
    25 Nm max.
    Adapter interface
    SMA
    Fiber type
    MM SI up to 1000 μm core
    Insertion loss
    < 3 dB max. @850 nm (2 dB typ. @850 nm on 600 μm fiber)
    Operating wavelength range
    200-2000 nm; depending on the fiber
    Operating temperature range
    -55°C to +125°C
    Storage temperature range
    -55°C to +200°C