Our aluminum coated fiber are available for both operating windows in ultraviolett and visible/near infrared wavelength ranges. In addition, heracle offers a solarisation resistant version for ultraviolett region. The fiber features a wide operating temperature range from cryogenic up to 400° C and makes it ideal for Aircraft, missile, rocket, turbine & jet engine monitoring. The aluminum layer offers a hermetic coating. The fiber can be sterialized. Termination can be directly soldered for vacuum feedthroughs & laser diode pigtailing. Its radiation resistancy, low outgassing and resistancy to organic solvents allow for operation in radiation, caustic & corrosive environments.