Demonstrating a 300 mJ EO Q-Switched 2.79 µm Cr:Er:YSGG Laser
A team of researchers demonstrated that langasite (LGS) enables efficient Q-switch operation of Cr:Er:YSGG lasers at 2.79 µm. The laser is flash lamp-pumped and electro-optically (EO) Q-switched. They report 300 mJ output energy at 15 ns pulse duration at a 3Hz repetition rate, which is, as far as the team knows, the record result documented to date at 2.79 µm. Further improvement of the AR coating of the gain element, efficiency of the pump chamber, and laser performance over a wide range of repetition rates is planned in the near future.
The schematic diagram of the experimental setup appears above.
Click the link to read the paper detailing this research, entitled “300 mJ electro-optically Q-switched 2.79 µm Cr:Er:YSGG laser.”
The research team included members of the Department of Physics at the University of Alabama at Birmingham, as well as Scott Hamlin from MegaWatt Lasers (MWL). MWL produces:
- Diode-pump solid-state lasers
- Pump chambers
- Resonators (including 2.79 µm Cr,Er:YSGG)
- Diode-pumped, solid-state lasers
- Laser rods
- Laser optics
- Laser flash lamps
- Flash-lamp laser drivers
- Laser electronics
For more information about these or other products from MegaWatt Lasers, contact IL Photonics.