Seeded optical parametric generation in CdSiP<sub>2</sub> pumped by a Raman fiber amplifier at 1.24  µm

Murray, R.; Chandran, A. M.; Battle, Ronan A.; Runcorn, T. H.; Schunemann, Peter G.; Zawilski, Kevin T.; Guha, Shekhar; Taylor, J.R.

doi:10.1364/ol.420959

Cited by 8 publications

(3 citation statements)

References 17 publications

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“…Laser sources operating at 1.2 μm waveband have some unique applications in photodynamic therapy, biomedical diagnosis and oxygen sensing [ 1 – 5 ]. Additionally, they can be adopted as pump sources for mid-infrared optical parametric generation as well as visible light generation by frequency doubling [ 6 – 9 ]. Laser generation at 1.2 μm waveband has been achieved with different solid-state lasers including semiconductor laser [ 10 , 11 ], diamond Raman laser [ 12 , 13 ], and fiber laser [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

High power tunable Raman fiber laser at 1.2 μm waveband

Zhang,

Xu,

Liang

et al. 2024

Front. Optoelectron.

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Development of a high power fiber laser at special waveband, which is difficult to achieve by conventional rare-earth-doped fibers, is a significant challenge. One of the most common methods for achieving lasing at special wavelength is Raman conversion. Phosphorus-doped fiber (PDF), due to the phosphorus-related large frequency shift Raman peak at 40 THz, is a great choice for large frequency shift Raman conversion. Here, by adopting 150 m large mode area triple-clad PDF as Raman gain medium, and a novel wavelength-selective feedback mechanism to suppress the silica-related Raman emission, we build a high power cladding-pumped Raman fiber laser at 1.2 μm waveband. A Raman signal with power up to 735.8 W at 1252.7 nm is obtained. To the best of our knowledge, this is the highest output power ever reported for fiber lasers at 1.2 μm waveband. Moreover, by tuning the wavelength of the pump source, a tunable Raman output of more than 450 W over a wavelength range of 1240.6–1252.7 nm is demonstrated. This work proves PDF’s advantage in high power large frequency shift Raman conversion with a cladding pump scheme, thus providing a good solution for a high power laser source at special waveband. Graphical Abstract

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Section: Introductionmentioning

confidence: 99%

High power tunable Raman fiber laser at 1.2 μm waveband

Zhang,

Xu,

Liang

et al. 2024

Front. Optoelectron.

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“…Nonlinear optical (NLO) crystal materials are used in laser wavelength conversion technology. − Borates as important types of NLO crystals have always been a research hotspot for a long time. − The boron and oxygen atoms in borates can be three-coordinated and four-coordinated to form a (BO 3 ) 3– planar triangle and (BO 4 ) 5– tetrahedron, respectively; − especially, the conjugated π-orbitals and highly anisotropic electron distribution in the (BO 3 ) 3– group are very favorable for the enhancement of NLO performance and the generation of birefringence. , The large electronegativity difference between boron and oxygen atoms is beneficial to ultraviolet (UV) transmittance. If the hanging bond on the oxygen anion in the B–O group is eliminated, the UV cutoff edge of the compound will be further shortened, which is likely to make the compounds useful in the deep ultraviolet (DUV) region .…”

Section: Introductionmentioning

confidence: 99%

Growth, Structure, and Optical Properties of a Nonlinear Optical Niobium Borate Crystal CsNbOB₂O₅ with Distorted NbO₅ Square Pyramids

Liu

Lee

et al. 2022

Inorg. Chem.

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In this paper, a revised structure determination of an already known compound CsNbOB2O5 with new structural insights was performed and the detailed characterization of its optical properties was reported for the first time. CsNbOB2O5 was synthesized by spontaneous crystallization. It crystallizes in the Pmn21 space group, and the unit lattice parameters are a = 7.5220(7) Å, b = 3.9881(4) Å, c = 9.7167(9) Å, and Z = 2. In the structure of CsNbOB2O5, a [NbO5] square pyramid and [B2O5] unit are linked to constitute an infinitely extended two-dimensional ∞ 2[NbOB2O5] layer via sharing oxygen atoms. Between these two-dimensional layers, there are no covalent bonds perpendicular to their planes based on Mulliken bond order analysis. CsNbOB2O5 has a wide band gap (4.52 eV) and a large second-harmonic-generation (SHG) response (1.2 × KDP) and demonstrates type-I phase-matchable behavior. First-principles simulations reveal that the birefringence is approximately 0.10. Moreover, SHG-weighted charge density analysis shows that the primary source of the nonlinearity of the title compound is the distorted NbO5 square pyramids.

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“…Here, the NLO crystal is regarded as one of the core components in this system. At present, many MF-IR NLO crystals such as AgGaS 2 , AgGaSe 2 , ZnGeP 2 , CdSiP 2 , OP-GaAs, OP-GaP, BaGa 4 S 7 , and BaGa 4 Se 7 have been developed and widely used [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

The Investigation on Mid-Far Infrared Nonlinear Crystal AgGaGe5Se12 (AGGSe)

et al. 2021

Crystals

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3–5, 8–14 μm mid-far infrared (MF-IR) coherent lights generated by nonlinear optical (NLO) crystals are crucial for many industrial and military applications. AgGaGe5Se12 (AGGSe) is a promising NLO candidate because of its good optical performance. In this paper, the large AGGSe single crystal of 35 mm diameter and 80 mm length was obtained by the seed-aided Bridgman method. The crystalline quality was characterized with X-ray diffraction, rocking curve, transmission spectrum. The FWHM of the (210) peak was about 0.05° and the IR transmission was about 60% (1–10 μm, 6 mm thick). Additionally, it performed well in 8 μm frequency doubling, with a maximum output power of about 41 mW, corresponding to an optical-to-optical conversion efficiency of 3.2%. The laser induced damage threshold (LIDT) value was about 200 MW/cm2 (1.06 μm, 20 ns, 1 Hz).

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Seeded optical parametric generation in CdSiP₂ pumped by a Raman fiber amplifier at 1.24 µm

Cited by 8 publications

References 17 publications

High power tunable Raman fiber laser at 1.2 μm waveband

High power tunable Raman fiber laser at 1.2 μm waveband

Growth, Structure, and Optical Properties of a Nonlinear Optical Niobium Borate Crystal CsNbOB₂O₅ with Distorted NbO₅ Square Pyramids

The Investigation on Mid-Far Infrared Nonlinear Crystal AgGaGe5Se12 (AGGSe)

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Seeded optical parametric generation in CdSiP2 pumped by a Raman fiber amplifier at 1.24 µm

Cited by 8 publications

References 17 publications

High power tunable Raman fiber laser at 1.2 μm waveband

High power tunable Raman fiber laser at 1.2 μm waveband

Growth, Structure, and Optical Properties of a Nonlinear Optical Niobium Borate Crystal CsNbOB2O5 with Distorted NbO5 Square Pyramids

The Investigation on Mid-Far Infrared Nonlinear Crystal AgGaGe5Se12 (AGGSe)

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Seeded optical parametric generation in CdSiP₂ pumped by a Raman fiber amplifier at 1.24 µm

Growth, Structure, and Optical Properties of a Nonlinear Optical Niobium Borate Crystal CsNbOB₂O₅ with Distorted NbO₅ Square Pyramids