Temperature dynamics in silicon core fibers during CO2 laser processing

• Silicon core fibers are a promising candidate for optoelectronic and photonic applications. Fabrication and post-processing of those fibers is thus far done without precise knowledge of the processing temperatures. Here, a simple technique is presented that allows for in-situ temperature monitoring during thermal processing of silicon core fibers. The temperature was probed across the silicon melting point and cooling rates above 3500 degrees C s(-1) were measured. The silicon core was found to be molten at a temperature of 1281 degrees C, more than 100 degrees C below the bulk silicon melting point. This is attributed to stress inbuilt to silicon core fibers during the fabrication process.

Subject headings

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

Keyword

Fysik

Physics

Publication and Content Type

ref (subject category)

art (subject category)