Hermetic fiber optic feedthroughs

Reconfigurable multichannel hermetic fiber-optic feedthroughs

Key features

  • low profile
  • reconfigurable: individual channels fully replaceable
  • for vacuum and ultra-high vacuum applications
  • 10-8 mbar.l/s hermeticity
  • UV-VIS-NIR wavelength ranges
  • multichannel: 1 to 4 channels
  • available flanges: DN 40 CF and DN 40 KF
  • SM and MM fibers
  • FC/PC and SMA adapters

Reconfigurable multichannel hermetic fiber-optic feedthroughs

The KTRAV-T10 reconfigurable multichannel hermetic fiber-optic feedthroughs are designed with either a DN 40 KF flange for high vacuum applications or a DN 40 CF flange for ultra-high vacuum applications.

Standard configurations are available with 1 to 4 individual channels within one DN 40 CF or DN 40 KF flange. Custom designs are also possible upon request; we offer different sizes of ISO, CF and KF flanges. The channels are soldered on the stainless steel 304L housing, ensuring low outgassing rates and helium leak rates.

Each channel is demountable for easy replacement.

Upon customer’s request, our production team can reconfigure the feedthrough so that it can be reused for a different application.

Indeed, every feedthrough channel is built with an internal fiber rod identical to the fiber used upstream and downstream for perfect matching of the optical characteristics of each line. These fiber rods can be disassembled and replaced by other ones with the fibers of your choice when back in production.

These reconfigurable multichannel hermetic fiber-optic feedthroughs can be made with either singlemode [SM] fibers or multimode [MM] graded-index [GI] fibers as well as step-index [SI] fibers with a cladding diameter of 125 μm in FC/PC version or with a core diameter up to 1000 μm with SMA termination. The connectors can also be disassembled and replaced by other types.

Please contact us to discuss your specific requirements.

  • KTRAV-T10-CF40-FCPC

    Pressure
    ultra-high vacuum
    Hermeticity
    10-8 mbar.l/s
    Flange type
    DN 40 CF
    Sealing technology
    copper seal ring
    Housing material
    stainless steel 304L
    Number of channels
    1 to 4
    Panel drilling diameter
    depends on the number of channels
    Panel thickness
    1 mm min.; 23,5 mm max.
    Tightening torque
    -
    Adapter interface
    FC/PC
    Fiber type
    SM, MM GI50, MM GI62.5, LCH50, LCH105 with 125 μm cladding
    Insertion loss
    < 1 dB max. @1550 nm (0.3 dB typ. @1550 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-T10-CF40-SMA

    Pressure
    ultra-high vacuum
    Hermeticity
    10-8 mbar.l/s
    Flange type
    DN 40 CF
    Sealing technology
    copper seal ring
    Housing material
    stainless steel 304L
    Number of channels
    1 to 4
    Panel drilling diameter
    depends on the number of channels
    Panel thickness
    1 mm min.; 23,5 mm max.
    Tightening torque
    -
    Adapter interface
    SMA
    Fiber type
    100 µm to 1000 µm core fibers, low OH, high OH, solarization resistant
    Insertion loss
    < 3.0 dB max. @850 nm (2.0 dB typ. @850 nm on 600 µm core 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

  • KTRAV-T10-KF40-FCPC

    Pressure
    high vacuum
    Hermeticity
    10-8 mbar.l/s
    Flange type
    DN 40 KF
    Sealing technology
    clamp ring
    Housing material
    stainless steel 304L
    Number of channels
    1 to 4
    Panel drilling diameter
    depends on the number of channels
    Panel thickness
    1 mm min.; 23,5 mm max.
    Tightening torque
    -
    Adapter interface
    FC/PC
    Fiber type
    SM, MM GI50, MM GI62.5, LCH50, LCH105 with 125 μm cladding
    Insertion loss
    < 1 dB max. @1550 nm (0.3 dB typ. @1550 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-T10-KF40-SMA

    Pressure
    high vacuum
    Hermeticity
    10-8 mbar.l/s
    Flange type
    DN 40 KF
    Sealing technology
    clamp ring
    Housing material
    stainless steel 304L
    Number of channels
    1 to 4
    Panel drilling diameter
    depends on the number of channels
    Panel thickness
    1 mm min.; 23,5 mm max.
    Tightening torque
    -
    Adapter interface
    SMA
    Fiber type
    100 µm to 1000 µm core fibers, low OH, high OH, solarization resistant
    Insertion loss
    < 3.0 dB max. @850 nm (2.0 dB typ. @850 nm on 600 µm core 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