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Broadband wavelength control for optical parametric oscillation in radially-poled whispering gallery resonators

: Meisenheimer, Sarah-Katharina; Fürst, Josef U.; Schiller, Annelie; Buse, Karsten; Breunig, Ingo

Postprint urn:nbn:de:0011-n-3829081 (1.6 MByte PDF)
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Copyright Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Erstellt am: 21.4.2016

Vodopyanov, K.L. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XV : San Francisco, California, February 2016
Bellingham, WA: SPIE, 2016 (Proceedings of SPIE 9731)
ISBN: 978-1-62841-966-5
Paper 97310U, 7 S.
Conference "Nonlinear Frequency Generation and Conversion - Materials, Devices, and Applications" <15, 2016, San Francisco/Calif.>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IPM ()
optical parametric oscillator (OPO); whispering gallery resonator (WGR); infrared spectroscopy

We demonstrate that optical parametric oscillators (OPOs) in radially poled whispering gallery resonators (WGRs) can be used for broadband infrared spectroscopy. Identifying the whispering gallery modes of pump, signal and idler waves by comparing the cavity spectra and the tuning capabilities with theoretical estimates allows us to predict the generated wavelengths in the spectral range 1.7–2.5 µm. Controlled wavelength tuning over more than100 nm is achieved by increasing the temperature of the WGR in well-defined steps, addressing one longitudinal mode after the other and keeping the radial and polar pump mode fixed.