A method of manufacturing germanium doped glasses and a use of the method

摘要

A method of manufacturing germanium doped glasses, the refractive index of which can be changed preferably by exposure to UV-light by depositing a gas mixture. According to the invention, compounds containing N and H, such as NH3, which may be incorporated into the glass, are added to the gas mixture to be deposited. The invention further relates to the use of the method for the manufacture of an optical transducer, utilizing the fact that the filter frequency or frequencies is/are changed in response to the strain of the glass material.