Semiconductor lasers exhibit a rich array of dynamical behaviours when subject to optical feedback. Reflected light from an external cavity re-enters the gain region, altering carrier and photon ...
Based on optical-feedback cavity-enhanced absorption spectroscopy (OF-CEAS) technology, a research team led by Prof. Zhang Weijun from the Hefei Institutes of Physical Science (HFIPS) of the Chinese ...
Regardless of its color, an LED's light output varies as a function of forward current and ambient temperature. As Figure 1 shows, an LED's light output can vary by as much as 150% over its ...
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