我們利用將etalon置放於腔內或者於輸出耦合產生可調單色及雙色雷射。在厚度500 μm etalon置放於腔內中以及使用a-cut Nd:YVO4增益介質，我們產生雙色雷射波長為1064.21 nm及1064.69 nm，兩峰間距為127 GHz。在厚度760 μm etalon置放於腔內中以及使用a-cut Nd:YVO4增益介質，我們產生雙色雷射波長為1064.27 nm及1064.58 nm，兩峰間距為82 GHz，在14.8 W的幫浦雷射功率下，可以產生約一百毫瓦(mW)的輸出功率。透過改變高finesse etalon的角度達到高損耗的穿透峰可以掃描雷射的增益頻譜。因此我們使用c-cut Nd:YVO4增益介質加上114μm的etalon可以產生單色雷射在1066.7 、1065.0 和 1084.0 nm 以及雙色雷射在1065.3和1067.0 nm 而兩峰值間距448 GHz。藉由Nd:GdVO4 增益介質加上150 μm 的etalon可以產生單色雷射在1063.7 和1066.0 nm 以及雙色雷色在1063.8 和1066.0 nm 兩峰值間距581 GHz。

This thesis reports tunable single- and two-color lasers with an intra-cavity etalon or an etalon output coupler. For the former, the two-color laser was generated at 1064.21 and 1064.69 nm (or 1064.27 and 1064.58 nm), with a 127 GHz (or 82 GHz) peak separation from an a-cut Nd:YVO4 with a 500 µm-thick (or 760 µm-thick) intra-cavity etalon. Hundreds of mW power from the 2-color laser was obtained with a pump of 14.8 W. By tilting the high-finesse etalon coupler, its high-loss transmission peak can be shifted to scan across the gain spectrum of the laser. With a 114 µm-thick etalon output coupler, a single-color laser was produced at 1066.7, 1065.0, or 1084.0 nm, whereas a two-color laser was produced at 1065.3 and 1067.0 nm with a 448 GHz peak separation from a c-cut Nd:YVO4 laser system. Moreover, a single-color laser was generated at 1063.7 or 1066.0 nm, whereas a two-color laser was generated at 1063.8 and 1066.0 nm with a 581 GHz peak separation from an Nd:GdVO4 laser system with a 150 µm-thick etalon output coupler.

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