The quality of the AR coating has a critical influence on the performance of the diode laser for external cavity applications. Sacher's AR coated diode lasers offer excellent performance of external cavity systems with large mode-hop free spectral tuning.

Diode lasers are cost effective opto-electronic devices which cover a wide variety of applications. For most applications in the field of measuring and sensing, there is an improvement of the spectral properties needed. Technically, this is realised by using external cavities. For a proper coupling of the external cavity to the diode laser, an AR coating of the front facet of the diode laser is required. Dr Joachim Sacher was one of the first scientists who recognised this potential.

Benefit of AR-coated diode lasers, Laser Performance:

Sacher's AR coated diode lasers give the laser system the performance of a turnkey system. It is no longer required to search for the current and temperature values of the operating point. Sacher has more the 15000 AR coated diodes installed in both research and industrial applications.

Benefit of AR-coated diode lasers, Wavelength Tuning:

Using an AR coated diode laser within an external cavity system increases the total tuning range of diode lasers up to a factor of 2 in comparison with standard diode lasers.