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Masood Ghotbi

Masood Ghotbi

Academic rank: Assistant Professor
ORCID:
Education: PhD.
ScopusId: 8938902000
HIndex:
Faculty: Faculty of Science
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Research

Title
BiB3O6 femtosecond optical parametric oscillator
Type
JournalPaper
Keywords
BiB3O6, Femtosecond pulse, OPO, Ti:apphire, laser, Nonlinear crystal, optical parametric oscillator
Year
2006
Journal Optics Letters
DOI
Researchers Masood Ghotbi ، Adolfo Esteban-Martin ، Majid Ebrahimzadeh

Abstract

We report a femtosecond optical parametric oscillator (OPO) based on the nonlinear material BiB3O6. The OPO is synchronously pumped in the blue by the second harmonic of a Kerr-lens-mode-locked Ti:sapphire laser. It can provide wide and continuous tuning across the entire green–yellow–orange–red spectral range with a single crystal and a single set of mirrors. Using a 500 micron BiB3O6 crystal and collinear type I (e+e →o) phase matching in the optical yz plane, a signal wavelength range of 480–710 nm is demonstrated with angle tuning at room temperature at average output powers of 270 mW. With 220 fs blue pump pulses, near-transform-limited signal pulses of 120 fs duration have been obtained at 76 MHz repetition rate.