Two-octave-wide (3–12 µm) subharmonic produced in a minimally dispersive optical parametric oscillator cavity
Abstract
We report a subharmonic (frequency-divide-by-2) optical parametric oscillator (OPO) with a continuous wavelength span of 3 to 12 µm ( − 37 d B level) that covers most of the molecular rovibrational “signature” region. The key to obtaining such a wide spectral span is the use of an OPO with a minimal dispersion—through the choice of intracavity elements, the use of all gold-coated mirrors, and a special “injector” mirror. The system delivers up to 245 mW of the average power with the conversion efficiency exceeding 20% from a 2.35 µm Kerr-lens mode-locked pump laser.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 03, 2021
- Source ID
- 10.1364/ol.403910
Entities
People
- Konstantin L. Vodopyanov
- Peter G Schunemann
- Qitian Ru
- Sergey Mirov
- Sergey Vasilyev
- T. Kawamori
Organizations
- Defense Advanced Research Projects Agency
- Office of Naval Research