Fiber optical parametric oscillator made of soft glass

• DOI: 10.1364/ol.457711
• Publication Date: 2022-06-24T11:00:09Z
• Authors: Imtiaz Alamgir; Mohsen Rezaei; Martin Rochette
• Keywords: ZBLAN; Zero-dispersion wavelength

Fiber optical parametric oscillators (FOPOs) are compact sources of coherent and broadly tunable light compatible with operation in unconventional spectral bands. Highly nonlinear silica fibers have enabled the development FOPOs telecommunication wavelength band, but strong material absorption glass at wavelengths >2 µm limits its applicability mid-infrared (MIR) range. In this work, we overcome issue report a FOPO designed entirely out soft fiber. For purpose, combine an As2Se3 single-mode fiber coupler, gain medium, low-loss ZBLAN delay to build first all-fiber laser cavity made glass. Two proof-of-concept presented, one driven by pure leading wavelength-tunable Stokes emission within range 2.088-2.139 µm, other Raman-assisted 2.023-2.048 µm. This demonstration is promising step toward fully fiberized MIR sources.