High energy (0.8 J) mechanically Q-switched 2.94 μm Er:YAG laser
Abstract
We report a flashlamp pumped mechanically Q-switched (MQS) 2.94 μm Er:YAG laser based on a spinning mirror with a highest output energy of 805 mJ at a pulse duration of 61 ns and 13 MW of peak power at 1 Hz repetition rate. This record output energy was achieved with the use of 300 mm long MQS Er:YAG laser cavity consisting of a 70% output coupler, 7 × 120 mm AR coated Er(50%):YAG crystal, and 4200 rad/s angular speed of the spinning mirror. The pulse jitter was also measured by using optical triggering and was smaller than 10 ns for 150 ns Q-switched pulses, which could be applicable to many laser applications where precise synchronization of pulses is required.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 26, 2021
- Source ID
- 10.1364/oe.417301
Entities
People
- Dmitry Martyshkin
- Krishna Karki
- Sergey Mirov
- Vladimir Fedorov
Organizations
- Air Force Office of Scientific Research
- National Institute of Environmental Health Sciences
- United States Department of Energy
- University of Alabama at Birmingham