Better Source Material
A new mid-IR source could have powerful potential
What?
A new broadband light source that can produce infrared light in the 4.5–20 µm region, based on a powerful disk-based oscillator.
How?
The thin disk is pumped by a thulium-doped fiber laser emitting at 1908 nm, “resulting in a much smaller quantum defect and up-conversion process compared to the traditional Ho/Tm co-doped system” (1). The result? Optical-to-optical efficiency of 22 percent.
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