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13 March 2024 High-energy picosecond optical oarametric oscillator with hollow-core fiber
Yudi Wu, Sijing Liang, Qiang Fu, Francesco Poletti, David J. Richardson, Lin Xu
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Proceedings Volume PC12869, Nonlinear Frequency Generation and Conversion: Materials and Devices XXIII; PC1286907 (2024) https://doi.org/10.1117/12.2692929
Event: SPIE LASE, 2024, San Francisco, California, United States
Abstract
We present a compact-cavity, picosecond, mid-infrared optical parametric oscillator (OPO) employing a length of hollow-core-fiber (HCF) inside the cavity and operating at 1-MHz repetition rate for high pulse energy. Pumped by an ytterbium-doped fiber laser, the periodically-poled-lithium-niobate-based OPO generates output beam with tunable wavelengths ranging from 1.3 µm to 4.8 µm. The OPO provides 137-ps pulses with maximum energies of 10 µJ for signal output at 1.6 µm and 5 µJ for idler output at 3 µm, respectively. Output power performance with respect to the wavelength tunability and optimization of beam quality for the OPO are numerically and experimentally investigated.
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Yudi Wu, Sijing Liang, Qiang Fu, Francesco Poletti, David J. Richardson, and Lin Xu "High-energy picosecond optical oarametric oscillator with hollow-core fiber", Proc. SPIE PC12869, Nonlinear Frequency Generation and Conversion: Materials and Devices XXIII, PC1286907 (13 March 2024); https://doi.org/10.1117/12.2692929
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KEYWORDS
Optical parametric oscillators
Picosecond phenomena
Oscillators
Fiber lasers
Mid-IR
Pulse signals
Nanolithography
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