Abstract
The dependence of mode-locked oscillation of homogeneous lasers on the modulation frequency of locking signal is studied. An experiment using a He-Ne 3.39 μm laser and applying intracavity phase (FM) modulation was performed on the frequency range of 40 MHz to 1.20 GHz. The oscillation bandwidth was observed to be nearly proportion to √ƒ m and ƒ m (ƒ m: modulation frequency) for the modulation frequency range of ƒ m<Δƒ and ƒ m>Δƒ (Δƒ: linewidth), respectively. The possibility to generate ultra-short pulses by using larger modulation frequency than the linewidth is also discussed. For 1.20 GHz modulation frequency, the pulsewidth was estimated to be about 70 ps from the observed power spectrum, while the reciprocal of the linewidth was about 3 ns.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
