A non-exothermic quasi-two level laser

摘要

A method for selecting laser and pump frequencies for a quasi-two level solid state laser with a selected laser host and operating the laser with the selected laser and pump frequencies, the host having a fluorescence probablility P(&ngr;) over a frequency range from &ngr;i to &ngr;f, has the steps: (a) determining for the laser host, a power weighted average fluorescence frequency &ngr;F given by(b) selecting an output frequency &ngr;L for the quasi-two level solid state laser to satisfy the expression &ngr;L&ngr;F, and tuning the laser for laser emission at the &ngr;L; and (c) selecting a pump frequency &ngr;P for the quasi-two level solid state laser to satisfy the expression &ngr;L&ngr;P&ngr;F, and optically pumping the laser host with a laser pump to produce laser emission at the &ngr;L. This invention will provide athermal laser operation.