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PA&E's hermetic fiber optic bulkhead feedthru for the ELIO connector line features an insertion loss ≤ 0.3 dB per interface, a return loss ≤ 20 dB per interface and can be manufactured to support multi-mode 50, 62.5 /125 or 100/140 µm fiber types (PC shape ferrule). The hermetic feedthru is available in either jam nut or laser weldable configurations. It is compatible with aluminium, titanium and stainless steel and is designed to mate with aluminium or composite ELIO contacts. It has an operating temperature range of -55°C to +125°C.and is available in one-- or four-way configurations. The feedthru is also compatible with Airbus A380 Spec and ARINC 801 Standard.

Glass is the traditional sealing material for many hermetic interconnect solutions, but in fiber optic applications, a glass sealing process is impractical because the temperatures required to create a glass seal are high enough to destroy optical fiber. This innovative new interconnect solution uses PA&E's Kryoflex^® polycrystalline ceramic-to-metal sealing technology. Seals are created at much lower temperatures so fiber optic cables remain intact and this new feedthru achieves a leak rate ≤ 1X10^-9 cc/sec He at one atmospheric differential pressure. Kryoflex seals provide a direct ceramic-to-metal bond, by means of oxygen-pinned valence bonding. This unchanging chemical and mechanical bond is enhanced by Kryoflex's randomly organized crystalline structure, which allows this unique material to relieve stresses from within itself.