Characterization of the Carrier Lensing Effect in a Second Harmonic Generator
Yong Shen,
Haobin Zheng,
Xiang Zhang
et al.
Abstract:This paper presents studies on the carrier lensing effect of a tapered amplifier in a compact cavity-enhanced second harmonic generator. When different injecting currents are applied, carriers in the tapered amplifier are depleted to different levels depending on the local optical field
intensity, resulting in a spatial variation of the refractive index and creating an effective convex lens for the amplified laser beam. This can significantly reduce the mode matching between the pump beam and the cavity, lead… Show more
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