Energy Scaling of Nanosecond Gain-Switched Cr2+:ZnSe Lasers
Abstract
In this paper, we report record nanosecond output energies of gain-switched Cr:ZnSe lasers pumped by Q-switched Cr:Tm:Ho:YAG (100 ns at 2.096 microns) and Raman shifted Nd:YAG lasers (7 ns at 1.906 microns). In these experiments we used Brewster cut Cr:ZnSe gain elements with a chromium concentration of 8x10(exp 18)/cu cm. Under Cr:Tm:Ho:YAG pumping, the first Cr:ZnSe laser demonstrated 3.1 mJ of output energy, 52% slope efficiency and 110 nm linewidth centered at a wavelength of 2.47 microns. Maximum output energy of the second Cr:ZnSe laser reached 10.1 mJ under H2 Raman shifted Nd:YAG laser pumping. The slope efficiency estimated from the input-output data was 47%.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2011
- Accession Number
- ADA541530
Entities
People
- Igor Moskalev
- K. L. Schepler
- M. J. Bohn
- Mike Mirov
- P. A. Berry
- Sergey Mirov
- T. J. Wagner
- V. V. Fedorov
Organizations
- Air Force Institute of Technology