I have a Coherent Mira 900 femtosecond mode-locked laser with a repetition rate of 76 MHz. I am interested in modifying the repetition rate to 80 MHz by shortening the cavity length by approximately 9.87 cm. I am wondering if anyone has experience modifying a Mira laser in this way and could kindly share their insights or advice.
Do you have any specific question to that laser? I havent worked with that particular model. But usually you unmount one of mirrors and mount to to a position of 9-10 cm shorter, as you calculated. Usually the manual should tell you which mirror to move. Then you align the laser again following the instructions by the manual.
Usually, the manual should supply you with alignment instructions and steps also for shortening the cavity.
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