Sacher Sachertechnik offer two different types of lockboxes for stabilizing the laser emission frequency to an external reference. These references are either a relative reference like an etalon or an absolute reference as an atom vapor absorption cell. Available products are:

Side of the Fringe Lockbox 
The Side of the Fringe lockbox stabilizes the laser system relative to the transmission line of an etalon, or to the side of an absorption line of an atom vapor reference reference gas cells. 

Top of Line Lockbox 
The Top of Line lockbox stabilizes the laser system at the maximum of the transmission line of an etalon, or at the maximum of an absorption line of an atom vapor reference reference gas cells.  .

Related Products 
Products related to lockboxes are Reference Gas and Vapor Cells or MOT Cells as well as Balanced Receiver.

Application Notes 
Sacher Lasertechnik offers a large collection of application notes on external cavity diode lasers as Absorption Spectroscopy, Raman Spectroscopy, Metrology and Fluorescence Spectroscopy.

Technical Notes
Sacher Lasertechnik offers a large collection of technical notes which are downloadable as PDF Files.

Publications 
Sacher Lasertechnik offers a large collection of Sacher publications or publications where Sacher equipment has been used. All documents are downloadable as PDF Files.