Abstract: | We describe the spectral dynamics of a line-narrowed F 2 laser, based on numerical simulation by a newly developed simulation code. The results were compared with the experimental results and it was found that the code could predict well the performance of a line-narrowed operation of the F 2 laser. The code was also used to obtain a guideline for the optimized operation of an injection-seeded F 2 laser system. In addition, a new spectral narrowing technique for the F 2 laser has been proposed and its effectiveness was evaluated by the simulation code. |