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- Title
Broadly tunable intracavity zinc germanium phosphate optical parametric oscillator for hyperspectral imaging.
- Authors
Robertson, Gordon; Maker, Gareth T.; Malcolm, Graeme P. A.
- Abstract
We report, to our knowledge, the first operation of a singly-resonant intracavity optical parametric oscillator (OPO) using the nonlinear material zinc germanium phosphate. The broadly tunable OPO uses a 7-W cw thulium fiber laser pump source to produce >100 mW of tunable mid-infrared light at repetition rates up to 30 kHz. The measured tuning range is 5.5 to 10 μm. The compact, low threshold source was used to perform spectroscopy of various substances. In addition, hyperspectral images were taken by combining the system with a scanning mirror pair and infrared photodiode.
- Subjects
PARAMETRIC oscillators; HYPERSPECTRAL imaging systems; IMAGING systems; PHOSPHATES; HARMONIC oscillators
- Publication
Optical Engineering, 2014, Vol 53, Issue 6, p1
- ISSN
0091-3286
- Publication type
Article
- DOI
10.1117/1.OE.53.6.063106