Pockel’s effect and optical rectification induced by the built-in electric field in the space charge region of a silicon surface layer are demonstrated in a ｛001｝-cut high-resistance silicon crystal. The half-wave voltage is about 203 V, deduced by P
We report here a high-power, wavelength tunable and narrow linewidth $1.5~\unicode[STIX]｛x03BC｝\text｛m｝$ all-fiber laser amplifier based on a tunable diode laser and Er-Yb co-doped fibers. The laser wavelength can be precisely tuned from 1535 nm to 1
