Hermetic fiber optic feedthroughs

Ruggedized multichannel hermetic fiber-optic feedthroughs

Key features

  • ruggedized
  • for vacuum and ultra-high vacuum applications
  • 10-8 mbar.l/s hermeticity
  • UV-VIS-NIR wavelength ranges
  • multichannel: 1 to 3 channels on DN 40 KF flange or 1 to 4 channels on a DN 40 CF flange
  • available flanges: DN 40 CF and DN 40 KF
  • PM, SM and MM fibers
  • FC/APC, FC/PC and SMA adapters

Ruggedized multichannel hermetic fiber-optic feedthroughs

The KTRAV-T12 ruggedized multichannel hermetic fiber-optic feedthroughs are designed for high & ultra-high vacuum applications. They feature extremely low outgassing rates and helium leak rates.

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 ruggedized multichannel 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 with a cladding diameter of 125 μm. We offer these configurations with either FC/APC or FC/PC connectors. The KTRAV-T12 feedthroughs are also available with SMA connectors and are suitable for large core fibers from 100 µm to 400 µm, Low OH, High OH, and solarization resistant fibers.

Standard configurations are available with 1 to 3 individual channels within one DN 40 KF flange or up to 4 channels within a DN 40 CF flange. Custom designs are also possible upon request; we offer different sizes of ISO, CF and KF flanges.

Please contact us to discuss your specific requirements.

  • KTRAV-T12-CF40-FCAPC

    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/APC
    Fiber type
    PM, SM, MM GI50, MM GI62.5, MM SI with 125 μm cladding
    Insertion loss
    < 1.5 dB max. @1550 nm (0.7 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-T12-CF40-FCPC

    Pressure
    ultra-high vacuum
    Hermeticity
    10-8 mbar.l/s
    Flange type
    DN 40 CF
    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-T12-CF40-SMA

    Pressure
    ultra-high vacuum
    Hermeticity
    10-8 mbar.l/s
    Flange type
    DN 40 CF
    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 400 µm core fibers, low OH, high OH, solarization resistant
    Insertion loss
    < 3 dB max. @850 nm (2 dB typ. @850 nm on 200 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-T12-KF40-FCAPC

    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 3
    Panel drilling diameter
    depends on the number of channels
    Panel thickness
    1 mm min.; 23,5 mm max.
    Tightening torque
    -
    Adapter interface
    FC/APC
    Fiber type
    PM, SM, MM GI50, MM GI62.5, MM SI with 125 μm cladding
    Insertion loss
    < 1.5 dB max. @1550 nm (0.7 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-T12-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 3
    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-T12-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 3
    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 400 µm core fibers, low OH, high OH, solarization resistant
    Insertion loss
    < 3 dB max. @850 nm (2 dB typ. @850 nm on 200 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