V-KF40-3x-PMC-780-18-30/120

Four-fold vacuum feed-through

Features

Vacuum flange type KF40 with three integrated fiber cable.

Based on small flange KF40 (stainless steel)
Suitable for vacuums down to 10^-7 mbar
Integrated polarization-maintaining fiber cables
Fiber type 3x PMC-780
Cable lengths 30/120 cm (inside / outside vacuum)
Connector type FC APC (both ends)

Description

This three-fold vacuum feed-throughs made by Schäfter+Kirchhoff are equipped with three identical fiber cables of type PMC-780. The three-fold vacuum feed-through is suitable for vacuums down to 10^-7 mbar and is supplied with a small flange KF40 (DIN 28403 and ISO 2861, stainless steel).

End-to-end fiber cables
The vacuum feed-throughs is supplied with non-exchangable, continous, end-to-end fiber cables. That means there are no additional fiber connections (mating) at the vacuum flange.

Benefits:

No additional coupling losses due to mating
No reduction in Polarization Extinction Ratio (PER) due to mating

PM fiber cables
On the vacuum side, the fiber cables are equipped with Ø 900 μm buffer made of Hytrel. The parts of the fiber cables outside the vacuum, have a Ø 3 mm cable with Kevlar strain-relief with bend protection both at the fiber connector and the flange.

Technical data

V-KF40-3x-PMC-780-18-30/120

Order Code

V-KF40-3x-PMC-780-18-30/120

Formaly known as

V-KF40-3x-PMC-780-5.3-NA012-APC/APC-30/120-P

Series

V-KF40-3x-PMC

Flange type

KF40 (DIN 28403 and ISO 2861)

Material

Stainless steel

Number of fiber cables

Fiber type

PMC-780

polarization-maintaining

Cut-off

770 nm

Wavelength max.

1100 nm

NA nom.

0.12

MFD nom.

5.3 µm

NAe2

0.08 (@780 nm)

Core attenuation

4 dB/km (@850 nm)

Beat length

2.4 mm (@850 nm)

PM type

Panda

PER

≥ 26 dB

Inside vacuum

Buffer

Ø 900 µm Hytrel, black

Cable length

30 cm

Min. bend radius

15 mm

Connector type

FC APC

Key width

wide key

Bend protection

Hytrel

Outside vacuum

Cable

Ø 3 mm cable with Kevlar strain-relief

Cable length

120 cm

Min. bend radius

40 mm

Connector type

FC APC

Key width

wide key

Bend protection

Polymer

Min. pressure

10^-7 mbar

Temperature range

-10 °C - 70 °C

Downloads

130810090701.pdf (Dimensional drawing)

130810090701.stp (STEP model)

130810090701.stp (STEP model, for registered users only)

NAe2_KP7-01.pdf (Technote)

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