A5009822564- Advanced Fiber Laser Technologies
- Solid State Laser Technologies
- Laser-Matter Interactions and Applications
- Spectroscopy Techniques in Biomedical and Chemical Research
- Photonic and Optical Devices
- Photorefractive and Nonlinear Optics
- Semiconductor Lasers and Optical Devices
- Photonic Crystal and Fiber Optics
- Advanced Photonic Communication Systems
- Optical Coherence Tomography Applications
- Optical Network Technologies
- Marine Sponges and Natural Products
- Analytical Chemistry and Sensors
- Photoacoustic and Ultrasonic Imaging
- Spectroscopy and Laser Applications
- Nonlinear Optical Materials Studies
Institute of Photonic Sciences
2017-2020
IRIS Technology Solutions (Spain)
2019
International Society for Optics and Photonics
2019
Technical University of Denmark
2019
Optical parametric oscillators (OPOs) are uniquely versatile—albeit complex—platforms for the generation of tunable coherent light in difficult-to-access spectral regions. A synchronously pumped <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:msup> <mml:mi>χ</mml:mi> <mml:mo stretchy="false">(</mml:mo> <mml:mn>2</mml:mn> stretchy="false">)</mml:mo> </mml:mrow> </mml:msup> </mml:math> femtosecond OPO producing sub-100-fs...
Mid-infrared (mid-IR) imaging and spectroscopic techniques have been rapidly evolving in recent years, primarily due to a multitude of applications within diverse fields such as biomedical imaging, chemical sensing, food quality inspection.Mid-IR upconversion detection is promising tool for exploiting some these applications.In this paper, various characteristics mid-IR the femtosecond regime are investigated using 4f setup.A fraction 100 fs, 80 MHz output from Ti:sapphire laser used...
We report a synchronously-pumped femtosecond optical parametric oscillator (OPO) based on orientation-patterned gallium phosphide (OP-GaP), providing continuously tunable mid-infrared (mid-IR) idler radiation across 3570-7892 nm (2801-1267 cm-1), by exploiting pump wavelength tuning. generate up to 54 mW of output average power at 80 MHz, and quantum conversion efficiencies 28.9% are achieved use synchronized retroreflection. With the inclusion intracavity dispersion compensation in an...
We report a high-repetition-rate femtosecond optical parametric oscillator (OPO) for the deep-infrared (deep-IR) based on type-I critical phase-matching in CdSiP2 (CSP), pumped directly by Ti:sapphire laser. Using angle-tuning CSP crystal, OPO can be continuously tuned across 7306-8329 nm (1201-1369 cm-1) deep-IR. It delivers up to 18 mW of idler average power at 7306 and >7 beyond 8000 80.5 MHz repetition rate, with spectra exhibiting bandwidths >150 tuning range. Moreover, signal is...
We report a high-repetition-rate femtosecond optical parametric oscillator (OPO) for the deep-infrared (deep-IR) based on nonlinear crystal, CdSiP <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> (CSP), pumped directly by Ti:sapphire laser, first time. By pumping CSP at <;1 μm, we have achieved practical output powers longest wavelengths generated any Ti:sapphire-pumped OPO. Using combination of pump wavelength tuning, type-I critical...
The authors describe the exploitation of group-velocity-matching in femtosecond optical parametric oscillators (OPOs) for enhanced down-conversion efficiency into mid-infrared (mid-IR). We demonstrate concept a OPO based on long MgO:PPLN crystal, first time, by utilizing between pump and idler pulses. Taking advantage wide phase-matching bandwidth when pumped near 1 µm enables use 42-mm-long resulting an oscillation threshold as low 5 mW, depletion 78%, quantum conversion up to 48% mid-IR....
We report the first deep-infrared femtosecond OPO based on CdSiP2 synchronously-pumped directly by a KLM Ti:sapphire laser, tunable across 7508–8210 nm, and generating as much 12 mW at 7508 nm in good beam-quality.
We report a femtosecond optical parametric oscillator across 6654–8329 nm based on CdSiP2 pumped directly by Ti:sapphire laser, generating 19 mW of average power at 7317 in ~300-fs pulses 80.5 MHz.
We report a high-repetition-rate femtosecond optical parametric oscillator (OPO) for the deep-infrared (deep-IR) based on nonlinear crystal, CdSiP<sub>2</sub> (CSP), pumped directly by Ti:sapphire laser, first time. By pumping CSP at <1 μm, we have achieved practical output powers longest wavelengths generated any Ti:sapphire-pumped OPO. Using combination of pump wavelength tuning, type-I critical phase-matching, and cavity delay continuously tunable radiation across 6654−8373 nm...
We report a compact femtosecond optical parametric oscillator based on MgO:PPLN, incorporating an integrated-mirror, single-mode fibre-feedback loop, generating up to 50 mW across 1128–1243 nm and 1358–1600 nm, exhibiting interesting spectral features.
We report a femtosecond optical parametric oscillator across 6654–8329 nm based on critically phase-matched CdSiP2. Directly pumping with Ti:sapphire laser, we generate 19 mW of average power in ~300-fs pulses at 80.5 MHz.
High repetition-rate coherent femtosecond sources of tunable near-IR radiation are widely used for time resolved spectroscopy and optical microscopy. We have developed a compact parametric oscillator (OPO) the in novel configuration based on MgO doped periodically poled LiNbO3 (MgO:PPLN) synchronously pumped by Kerr-lens-mode-locked (KLM) Ti:sapphire laser at 76 MHz. The singly-resonant OPO four-mirror X-cavity arrangement incorporates an 86-cm-long single mode fibre with one silver coated...
Summary form only given. Mid-infrared (mid-IR) imaging and spectroscopic techniques have been rapidly evolving in recent years, primarily due to a multitude of application within diverse fields like biomedical imaging, chemical sensing cancer diagnostics [1]. Most complex chemicals unique spectral signatures the mid-IR region, facilitating unambiguous identification based on their absorption features. Owing limitations conventional detectors range, sum frequency generation (SFG) second order...
We report a femtosecond optical parametric oscillator (OPO) based on orientation-patterned gallium phosphide (OP-GaP), with continuous tunability across 3.6-8 μm Up to 54 mW of output average power at 80 MHz is produced and peak powers 3 kW in the mid-IR are inferred.