Extension of the mode-hop-free tuning range of an external cavity diode laser based on a model of the mode-hop dynamics

摘要

We report on a universal method to achieve and sustain a large mode-hop-free tuning range of an externalncavity diode laser based on a model of its mode-structure dynamics. Using this method, we were able to scann73 GHz mode-hop free by using an uncoated off-the-shelf laser diode with a central wavelength of 785 nm.nOur model applies to any laser system requiring synchronization of more than one optical element. © 2008nOptical Society of America