scholarly journals Chaos in coupled Kerr-nonlinear parametric oscillators

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Hayato Goto ◽  
Taro Kanao
Keyword(s):  
Parametric Oscillators

scholarly journals Modelling Dispersion Compensation in a Cascaded-Fiber-Feedback Optical Parametric Oscillator

Optics ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 96-102
Author(s):  
Ewan Allan ◽  
Craig Ballantine ◽  
Sebastian C. Robarts ◽  
David Bajek ◽  
Richard A. McCracken
Keyword(s):  
Pulse Propagation ◽  
Dispersion Compensation ◽  
Numerical Aperture ◽  
Tunable Laser ◽  
High Energy ◽  
Order Effects ◽  
Optical Parametric Oscillators ◽  
Fiber System ◽  
Parametric Oscillators ◽  
Optical Parametric

Fiber-feedback optical parametric oscillators (OPOs) incorporate intracavity fibers to provide a compact high-energy wavelength-tunable laser platform; however, dispersive effects can limit operation to the sub-picosecond regime. In this research article, we modeled pulse propagation through systems of cascaded fibers, incorporating SMF-28 and ultra-high numerical aperture (UHNA) fibers with complementary second-order dispersion coefficients. We found that the pulse duration upon exiting the fiber system is dominated by uncompensated third-order effects, with UHNA7 presenting the best opportunity to realise a cascaded-fiber-feedback OPO.

Attainment of high efficiencies in optical parametric oscillators

1991 ◽  
Vol 16 (20) ◽  
pp. 1584 ◽  
Author(s):  
Gordon Robertson ◽  
Angus Henderson ◽  
Malcolm Dunn
Keyword(s):  
Optical Parametric Oscillators ◽  
Parametric Oscillators ◽  
Optical Parametric

Broadly Tunable Femtosecond Sources in the Mid-Infrared and Two-Wavelength Ultrafast Spectroscopy of Holes in GaAs

1998 ◽  
Vol 07 (01) ◽  
pp. 61-71
Author(s):  
C. L. Tang ◽  
K. C. Burr ◽  
F. Sh. Ganikhanov
Keyword(s):  
Conduction Band ◽  
Periodically Poled ◽  
Parametric Oscillators ◽  
Periodically Poled Lithium Niobate ◽  
Highly Efficient ◽  
Optical Parametric ◽  
Hole Band ◽  
Ion Laser ◽  
Diode Pumped ◽  
Band Transition

The recent development of periodically poled lithium niobate (PPLN) has led to a variety of highly efficient and compact all-solid-state nonlinear optical devices. Of particular interest are the optical parametric oscillators. We have most recently demonstrated for the first time a highly efficient broadly tunable femtosecond optical parametric oscillator (fs OPO) using PPLN. The threshold for oscillation of the PPLN fs OPO is remarkably low, on the order of 50 mW. As a result, it is now possible to use a diode-pumped and frequency-doubled Nd:YVO 4 laser, rather than an Ar-ion laser, as the pump source for the mode-locked Ti:sapphire laser for pumping the fs OPO. Such an OPO can operate from approximately 1 μm to 5.4 μm. Femtosecond sources have been used in a variety of experiments to study the dynamics of hot carriers in semiconductors. Because of the limited available wavelength range of earlier femtosecond sources, most such studies have been limited to electron dynamics in the conduction band of III–V compounds such as GaAs. With the extended tuning range of the recently developed fs OPO's, it is now possible to study a much wider variety of materials and transitions. We have recently obtained preliminary results on the ultrafast dynamics of holes in GaAs using two-wavelength tunable femtosecond spectroscopy, by pumping the valence-to-conduction band transition at approximately 800 nm and simultaneously probing the transitions between the split-off band and the perturbed heavy-hole band at approximately 3 μm. These recent results are summarized and discussed briefly.

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