Actively controlled tuning of an external cavity diode laser by polarization spectroscopy.
We report on an universal method to achieve and sustain a large mode-hop free tuning range of an external cavity diode laser. By locking one of the resonators using a closed loop control based on polarization spectroscopy while tuning the laser we achieved mode-hop free tuning of up to 130 GHz with a non AR-coated, off-the-shelf laser diode.
Führer
Thorsten
T
TU Darmstadt, Institute of Applied Physics, Darmstadt, Germany.
Stang
Denise
D
Walther
Thomas
T