Abstract

We report on a universal method to achieve and sustain a large mode-hop-free tuning range of an external cavity diode laser based on a model of its mode-structure dynamics. Using this method, we were able to scan $73\mathrm{GHz}$ mode-hop free by using an uncoated off-the-shelf laser diode with a central wavelength of $785\mathrm{nm}$. Our model applies to any laser system requiring synchronization of more than one optical element.

© 2008 Optical Society of America

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