Date of Award
Master of Science (MS)
Photonic Science and Technology
Dr. Liang Dong, Committee Chair
Dr. John Ballato
Dr. Lin Zhu
Broadband, high-power, mid-infrared sources are critical for many applica-tions. Fiber based supercontinuum generation is the optimum mid-infrared broad-band source that can provide extended bandwidth and good coherence. Compared to alternatives such as ﬂuorides and chalcogenides, tellurite ﬁbers are more robust and can handle much higher power. Tellurite ﬁbers also have high nonlinearity and a ma-terial zero dispersion wavelength close to 2 µm. This makes them ideal for nonlinear processes pumped by Tm-doped silica ﬁber lasers. We demonstrated tellurite ﬁbers by using a simple stack and draw process. This fabrication method requires simple setup and is easily repeatable. Due to the diﬃculty in producing soft glass tubes, we have drawn a stack-and-draw preform without the need for an over-clad tube. The stack-and-draw process provides several advantages over other solid and micro-structured designs. Our solid tellurite ﬁber design shows potential for broadband mid-infrared supercontinuum generation. We have also shown that designs with low dispersion are the key for broadband mid-infrared supercontinuum generation in tellurite ﬁbers pumped at 2 µm.
Dunn, Christopher David, "Tellurite Fiber for High Power Mid-Wave Infrared Supercontinuum Generation" (2016). All Theses. 2474.