Ultrashort pulse Cr4+:YAG laser for high precision infrared frequency interval measurements

摘要

A cavity stabilized, SESAM mode-locked Cr⁴⁺:YAG laser capable of generating sub-100 fs pulses has been developed. Locking the 130-MHz pulse repetition frequency to that of a hydrogen maser-referenced frequency synthesizer provides a 30-nm wide frequency comb for the 1530-nm wavelength region. In conjunction with a pair of acetylene stabilized, external cavity diode lasers, this laser provides a high precision measurement tool for the determination of acetylene transition frequencies.