PROCESSING METHOD FOR OPTICAL FIBER Russian patent published in 2007 - IPC G02B6/00 C03C25/00 

FIELD: method for processing optical fiber.

SUBSTANCE: method includes placement of optical fiber inside processing chamber; injection of deuterium-containing gas into processing chamber; and at stage of deuterium processing - subjection of optical fiber to effect of deuterium-containing gas environment. At the stage of deuterium processing, concentration D of deuterium in processing chamber is computed during deuterium processing on basis of original value A of deuterium concentration in deuterium-containing gas inside the processing chamber, concentration B of oxygen in environment of processing chamber and concentration C of oxygen in deuterium-containing gas inside the processing chamber. Deuterium concentration in the processing chamber is regulated on basis of computed deuterium concentration D. in accordance to the invention, other gases may be used, such as hydrogen-containing gas and nitrogen-containing gas.

EFFECT: precise adjustment of deuterium concentration even in case when the gas, serving as carrier of deuterium-containing gas, is other that air, and percentage composition of the gas, serving as carrier, fluctuates.

3 cl