Misalignment-tolerant, grating-tuned external-cavity laser with enhanced longitudinal mode selectivity
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机译:耐失准的光栅调谐外腔激光器,增强了纵向模式选择性
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摘要
A grating tuned external cavity laser having improved mode selectivity and stability. A cylindrical lens is positioned between a laser amplifier and a prism pair beam expander to focus the laser beam to form a linear spot on a grating. The location of the cylindrical lens between the laser amplifier and the prism pair minimizes the optical length of the laser cavity. In this way, the wavelength separation between optical resonance modes is increased, and the mode selectivity and stability of the system is enhanced.
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