High-Performance Solid-State and Fiber Lasers Controlled by Volume Bragg Gratings

Glebov, Leonid

doi:10.2184/lsj.41.9_684

Cited by 13 publications

(2 citation statements)

References 37 publications

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“…6 Such holographic elements are widely used for narrow band optical filtering 7 and laser design. 8 While many experimental studies have been devoted to elucidating the mechanism of NaF crystallization in this glass system, for example, a survey, 9 a fundamental structural investigation of the base glass has so far not been carried out. This is understandable in view of the glasses' complex chemical composition, which can make it rather difficult to relate spectroscopic results to structural information.…”

Section: ■ Introductionmentioning

confidence: 99%

“…By applying holographic techniques, optical elements with different spatial profiles of refractive index can be created, including volume Bragg gratings, phase masks, and complex holograms, for example, lenses . Such holographic elements are widely used for narrow band optical filtering and laser design . While many experimental studies have been devoted to elucidating the mechanism of NaF crystallization in this glass system, for example, a survey, a fundamental structural investigation of the base glass has so far not been carried out.…”

Section: Introductionmentioning

confidence: 99%

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Short- and Medium-Range Order in Photothermal Refractive Glass Revealed by Solid-State NMR Techniques

et al. 2019

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Photo-thermo-refractive (PTR) glass is an optically transparent photosensitive Na 2 O−ZnO−Al 2 O 3 − SiO 2 glass, containing NaF and KBr additives, along with cerium, silver, tin, and antimony oxide dopants. After heating above 500 °C, UV-exposed regions of this glass produce permanent refractive index changes, resulting from precipitation of NaF nanocrystals. Short-and medium-range order of this glass system is studied via multinuclear single-and double-resonance solid-state nuclear magnetic resonance (NMR) spectroscopy in regular PTR glass and in model glasses with simplified compositions. The results, when combined with data from energy-dispersive X-ray spectroscopy, indicate that the NaF component modifies the standard aluminosilicate framework, producing small amounts of F-bonded fiveand six-coordinated aluminum species. The fluoride speciation is obtained from 19 F magic-angle spinning NMR spectra, supported by 19 F{ 27 Al} and 19 F{ 23 Na} dipolar recoupling experiments. The majority of fluoride within the PTR glass is found within Na-dominated local environments, which also interact strongly with the aluminum. 23 Na{ 19 F} rotational echo double resonance reveals that about 1/3 of the Na + ions have fluoride ions in their first coordination spheres.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Short- and Medium-Range Order in Photothermal Refractive Glass Revealed by Solid-State NMR Techniques

et al. 2019

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Holographic lens for 532 nm in photo-thermo-refractive glass

Kompan

Divliansky

Smirnov

et al. 2018

Optics & Laser Technology

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An ultra-narrow linewidth solution-processed organic laser

et al. 2016

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Optically pumped lasers based on solution-processed thin-film gain media have recently emerged as low-cost, broadly tunable, and versatile active photonics components that can fit any substrate and are useful for, e.g., chemo- or biosensing or visible spectroscopy. Although single-mode operation has been demonstrated in various resonator architectures with a large variety of gain media—including dye-doped polymers, organic semiconductors, and, more recently, hybrid perovskites—the reported linewidths are typically on the order of a fraction of a nanometer or broader, i.e., the coherence lengths are no longer than a few millimeters, which does not enable high-resolution spectroscopy or coherent sensing. The linewidth is fundamentally constrained by the short photon cavity lifetime in the standard resonator geometries. We demonstrate here a novel structure for an organic thin-film solid-state laser that is based on a vertical external cavity, wherein a holographic volume Bragg grating ensures both spectral selection and output coupling in an otherwise very compact (∼cm3) design. Under short-pulse (0.4 ns) pumping, Fourier-transform-limited laser pulses are obtained, with a full width at half-maximum linewidth of 900 MHz (1.25 pm). Using 20-ns-long pump pulses, the linewidth can be further reduced to 200 MHz (0.26 pm), which is four times above the Fourier limit and corresponds to an unprecedented coherence length of 1 m. The concept is potentially transferrable to any type of thin-film laser and can be ultimately made tunable; it also represents a very compact alternative to bulky grating systems in dye lasers.

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High-Performance Solid-State and Fiber Lasers Controlled by Volume Bragg Gratings

Cited by 13 publications

References 37 publications

Short- and Medium-Range Order in Photothermal Refractive Glass Revealed by Solid-State NMR Techniques

Short- and Medium-Range Order in Photothermal Refractive Glass Revealed by Solid-State NMR Techniques

Holographic lens for 532 nm in photo-thermo-refractive glass

An ultra-narrow linewidth solution-processed organic laser

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High-Performance Solid-State and Fiber Lasers Controlled by Volume Bragg Gratings

Cited by 13 publications

References 37 publications

Short- and Medium-Range Order in Photothermal Refractive Glass Revealed by Solid-State NMR Techniques

Short- and Medium-Range Order in Photothermal Refractive Glass Revealed by Solid-State NMR Techniques

Holographic lens for 532 nm in photo-thermo-refractive glass

An ultra-narrow linewidth solution-processed organic laser

Contact Info

Product

Resources

About

Holographic lens for 532 nm in photo-thermo-refractive glass