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19 February 2007Ultrafast frequency conversion sources for the visible and ultraviolet based on BiB3O6
Efficient frequency conversion of high-repetition-rate femtosecond pulses and high-energy picosecond pulses with wide
tunability throughout the visible and ultraviolet (UV) is described in BiB3O6. By implementing a femotsecond optical
parametric oscillator (OPO) based on BiB3O6, the entire visible spectrum across 480-710 nm is accessed at practical
average powers of up to 270 mW in pulses of 120 fs at 76 MHz repetition rate. Internal frequency doubling of the visible
OPO signal pulses in &bgr;-BaB2O4 has also permitted femtosecond pulse generation with wide tunability across 250-350 nm
in the UV, at up to 100 mW of average power. The potential of BiB3O6 for frequency conversion of high-intensity pulses is also demonstrated by third harmonic generation of amplified microjoule picosecond pulses at 1064 nm. Output pulse
energies of 216 &mgr;J in 29 ps duration at 25 Hz repetition-rate have been obtained at 355 nm with overall conversion
efficiencies of 50%. Optical parametric generation and amplification of high-intensity picosecond pulses in the visible
and UV is also reported in BiB3O6, providing tuning across 370-740 nm, pulse energies of 48 &mgr;J pulse durations of 18 ps, and efficiencies as high as 30%.
M. Ebrahim-Zadeh
"Ultrafast frequency conversion sources for the visible and ultraviolet based on BiB3O6", Proc. SPIE 6451, Solid State Lasers XVI: Technology and Devices, 645106 (19 February 2007); https://doi.org/10.1117/12.708569
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M. Ebrahim-Zadeh, "Ultrafast frequency conversion sources for the visible and ultraviolet based on BiB3O6," Proc. SPIE 6451, Solid State Lasers XVI: Technology and Devices, 645106 (19 February 2007); https://doi.org/10.1117/12.708569