CF and KF vacuum fiber optic feedthrough with adapter interface

Key features

  • applications: vacuum and ultra-high vacuum
  • hermeticity: 10-10 mbar.l/s
  • fibers: SM and MM
  • interface: FC/PC or SMA
  • multichannel: up to 4
  • available flanges: DN 40 CF and DN 40 KF
  • wavelength ranges: UV-VIS-NIR
  • design: reconfigurable

CF and KF vacuum fiber optic feedthrough with adapter interface

The KTRAV-T10 “CF and KF vacuum fiber optic feedthrough with adapter interface” is a multichannel feedthrough. It is available with either a KF flange for high vacuum applications or a CF flange for ultra-high vacuum applications down to 10-10 mbar. And it presents a connector interface on the flange.

Standard configurations are available for 1 to 4 individual channels within one DN 40 CF or DN 40 KF flange. Custom designs are also possible upon request as we offer different sizes of ISO, CF, and KF flanges. Consult us for more information.

The channels are soldered to the 304L stainless steel flange, which ensures low outgassing and helium leakage rates compatible with UHV environment. The KTRAV-T10 vacuum fiber optic feedthrough ensures a high level of hermeticity better than 10-10 mbar.l/s.

Each channel is fully reconfigurable. Upon customer’s request, our production team can modify the channels by changing the optical fibers and/or connectors.

The KTRAV-T10 vacuum fiber feed-through is offered with FC/PC interface for:

  • singlemode fibers,
  • multimode graded-index fibers,
  • multimode step-index fibers with a cladding diameter of 125 μm.

This vacuum fiber optic feedthrough is also available with SMA connectors suitable for:

  • multimode step-index large core fibers from 100 µm to 1000 µm,
  • low-OH and high-OH fibers,
  • solarization resistant fibers.

Please contact us to discuss your specific requirements.

Datasheet Your specific request

  • KTRAV-T10-CF40-FC

    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

    Read more

  • 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

    Read more

  • KTRAV-T10-KF40-FC

    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

    Read more

  • 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

    Read more