title: Sub-50 fs pulses around 2070 nm from a synchronously-pumped, degenerate OPO.
abstract: We report generation of 48 fs pulses at a center wavelength of 2070 nm using a degenerate optical parametric oscillator (OPO) synchronously-pumped with a commercially available 36-MHz, femtosecond, mode-locked, Yb-doped fiber laser. The spectral bandwidth of the output is ~137 nm, corresponding to a theoretical, transform-limited pulse width of 33 fs. The threshold of the OPO is less than 10 mW of average pump power. By tuning the cavity length, the output spectrum covers a spectral width of more than 400 nm, limited only by the bandwidth of the cavity mirrors.
authors.affiliation: Edward L Ginzton Laboratory, Stanford University, Stanford, California 94305, USA. cwrudy@stanford.edu
authors.forename: Charles W
authors.initials: CW
authors.lastname: Rudy
authors.forename: Alireza
authors.initials: A
authors.lastname: Marandi
authors.forename: Kirk A
authors.initials: KA
authors.lastname: Ingold
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Wolf
authors.forename: Konstantin L
authors.initials: KL
authors.lastname: Vodopyanov
authors.forename: Robert L
authors.initials: RL
authors.lastname: Byer
authors.forename: Lihmei
authors.initials: L
authors.lastname: Yang
authors.forename: Peng
authors.initials: P
authors.lastname: Wan
authors.forename: Jian
authors.initials: J
authors.lastname: Liu
mesh_terms: D004867:Equipment Design; D053844:Lasers, Solid-State; D017711:Nonlinear Dynamics; D009991:Oscillometry / Q000295:instrumentation* / Q000379:methods*; D012031:Refractometry / Q000295:instrumentation / Q000379:methods; D014159:Transducers; D015018:Ytterbium / Q000737:chemistry
chemical_list: D015018:Ytterbium