High-power ECL lasers

High power ECL lasers are based on a similar technology of linewidth narrowing as the highly coherent ECL lasers for spectroscopy. They include an extended cavity with a wavelength selective mirror – an optical grating. Further linewidth narrowing was achieved through external “injection locking” using a Ti:Sa laser.

We designed:


  • a power semiconductor laser with ECL configuration featuring 1.5 W of output power for laser polarization of the Xenon nuclei through spin exchange with Rubidium atoms. The polarized Xe is used as a contrast medium for magnetic resonance tomography. Similar power lasers are utilized as atmospheric communication transmitters for long-range free-space optical communications.