High energy (0.8 J) mechanically Q-switched 2.94 μm Er:YAG laser
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.
- Research Organization:
- Univ. of Alabama, Birmingham, AL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); National Institute of Environmental Health Sciences; US Air Force Office of Scientific Research (AFOSR)
- Grant/Contract Number:
- SC0018378; P42ES027723; FA9550-13-1-0234
- OSTI ID:
- 1762555
- Alternate ID(s):
- OSTI ID: 1852621
- Journal Information:
- Optics Express, Journal Name: Optics Express Vol. 29 Journal Issue: 3; ISSN 1094-4087
- Publisher:
- Optical Society of AmericaCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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