| 摘要 |
According to an embodiment of the disclosure, a laser system (100,200) comprises a pump diode (104,204), fiber (110,210), relay optics (120,220), and a microchip laser crystal (130,230). The pump diode (104,204) is configured to produce light at a first wavelength. The fiber (110,210), coupled to the pump diode, is configured to receive the light from the pump diode and to produce a round, homogeneous light spot at an output of the fiber. The relay optics (120,220) are configured to receive the light from the fiber. The microchip laser crystal (130,230) is configured to receive the light from the relay optics and to produce a linearly polarized single frequency output (140,240) at a second wavelength. The microchip laser crystal includes a first layer (132,232) and a second layer (136,236). The first layer (132,232) is configured to absorb the light at the first wavelength and emit light at the second wavelength. The second layer (136,236) is configured to receive the light at the second wavelength and to either provide a polarization dependent loss at the second wavelength or maintain a polarization of the light at the second wavelength. |
