Lasing in 15 atm CO2 cell optically pumped by a Fe:ZnSe laser
Abstract
10 µm lasing is studied in a compact CO2-He cell pressurized up to 15 atm when optically pumped by a ∼50 mJ Fe:ZnSe laser tunable around 4.3 µm. The optimal pump wavelength and partial pressure of CO2 for generating 10 µm pulses are found to be ∼4.4 µm and 0.75 atm, respectively. Without cavity optimization, the optical-to-optical conversion efficiency reached ∼10% at a total pressure of 7 atm. The gain lifetime is measured to be ∼1 µs at pressures above 10 atm, indicating the feasibility of using high-pressure optically pumped CO2 for the efficient amplification of picosecond 10 µm pulses.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 16, 2021
- Source ID
- 10.1364/oe.434670
Entities
People
- Chandrashekhar J. Joshi
- D. Tovey
- Dmitry Martyshkin
- Gerhard Louwrens
- Ilan Ben-zvi
- Jeremy Pigeon
- Krishna Karki
- Sergei Tochitsky
- Sergey Mirov
- Vladimir Fedorov
Organizations
- Office of Naval Research
- Office of Science
- Stony Brook University
- University of Alabama at Birmingham
- University of California, Los Angeles