Gas reclamation system for optical fiber production

A fiber draw furnace, comprising:

• a heated section configured to contain and heat a glass source from which an optical fiber is drawn;
• a lower extended muffle having a first end coupled to the heated section;
• and
• a gas screen coupled to a second end of the lower extended muffle, the gas screen comprising:
• a housing defining an inlet and an outlet,
• a tube extending from the outlet through the housing toward the inlet, wherein the housing includes at least two gas ports positioned on the tube, wherein a slot is defined between the tube and the inlet of the housing and is configured to allow a gas to flow into the tube, and
• a circular structure disposed around the tube and positioned between the at least two gas ports and the slot to restrict a width of an opening between the housing and the tube to create a drop in pressure of the gas to create a laminar flow of the gas from the at least two gas ports towards the slot.