Nd
              :
                Ta
                2
                O
                5
           rib waveguide lasers

Ünal, B.; Tai, Chao Yi; Shepherd, D.P.; Wilkinson, James S.; Perney, N.M.B.; Netti, M.C.; Parker, G.J.

doi:10.1063/1.1849419

Cited by 19 publications

(15 citation statements)

References 16 publications

(10 reference statements)

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“…h) Y3(Sc,Al)2Al3O12 according to [711]. i) Was grown in the film form, the structure is not carefully determined [703]. j) To a high probability this crystal has disordered structure.…”

Section: Spectral Ranges Of Lasing Activator Ionsmentioning

confidence: 99%

Laser crystals and ceramics: recent advances

Kaminskii

2007

Laser & Photonics Reviews

368

236

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After a brief examination of known insulating laser crystals and the stimulated emission channels of their generating activator ions, this article reviews recent advances in the development of novel lasing crystals and ceramics, as well as inorganic and organic nonlinear-laser crystals for χ (3) and cascaded χ (3) ↔ χ (2) frequency converters. Several new modern attractive technologies in the physics and techniques of crystalline lasers are also discussed.Section of the crystal structure of Na3Li (SeO4)

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“…h) Y3(Sc,Al)2Al3O12 according to [711]. i) Was grown in the film form, the structure is not carefully determined [703]. j) To a high probability this crystal has disordered structure.…”

Section: Spectral Ranges Of Lasing Activator Ionsmentioning

confidence: 99%

Laser crystals and ceramics: recent advances

Kaminskii

2007

Laser & Photonics Reviews

368

236

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“…Ta 2 O 5 is an important material because of its useful dielectric, optical, catalytic, and chemical properties 2–6 . Most current optical and dielectric applications make use of the amorphous form that has a dielectric constant ( K ) of ∼27, but it has been shown that the TiO 2 ‐stabilized high‐temperature form (H‐Ta 2 O 5 ) exhibits significantly enhanced values of dielectric constant (as high as K =280 at room temperature) 7–9 .…”

Section: Introductionmentioning

confidence: 99%

Phase Transformations in the High‐Temperature Form of Pure and TiO₂‐Stabilized Ta₂O₅

Brennecka

Payne

Sarin

et al. 2007

Journal of the American Ceramic Society

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The high‐temperature forms of undoped tantalum pentoxide (H‐100Ta2O5) and TiO2–modified Ta2O5 (H‐92Ta2O5–8TiO2) were investigated by in situ synchrotron X‐ray diffraction and Raman scattering measurements. Two unquenchable and reversible phase transformations were observed in pure H‐Ta2O5, while only one was detected for TiO2‐stabilized H‐Ta2O5. Diffraction studies were consistent with displasive transformations, but hot‐stage Raman spectroscopy indicated the existence of transient intermediate forms during the transformations. Use of complementary techniques enabled the reinterpretation of phase transformations in light of a newly proposed crystal structure model for H‐Ta2O5,1 and emphasized the structural contributions of the oxygen sublattice.

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“…Another practical challenge posed for the implementation of this method is that the discharge ignited to produce the plasma can be maintained only for a very amplifiers [187][188][189], leading to the demonstration of devices with an amplification bandwidth of 80 nm, covering the entire C-band [183]. Laser emission has been obtained from Nd-doped [190,191], Er-doped [192] ring [194] and DFB channel waveguides [195] produced in sputtered layers of the corresponding materials, as well as from Nd-doped phosphate glass slab waveguides [196]. Recently, emission of 440-fs-short laser pulses from Er-doped aluminosilicate glass rib waveguides based on RFsputtered films has been reported [44].…”

Section: Sputteringmentioning

confidence: 99%

Optically pumped planar waveguide lasers, Part I: Fundamentals and fabrication techniques

Grivas

2011

Progress in Quantum Electronics

193

102

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Abstract:The tremendous interest in the field of waveguide lasers in the past two decades is largely attributed to the geometry of the gain medium, which provides the possibility to store optical energy on a very small dimension in the form of an optical mode. This allows for realization of sources with enhanced optical gain, low lasing threshold, and small footprint and opens up exciting possibilities in the area of integrated optics by facilitating their on-chip integration with different functionalities and highly compact photonic circuits. Moreover, this geometrical concept is compatible with high power diode pumping schemes as it provides exceptional thermal management, minimizing the impact of thermal loading on laser performance. The proliferation of techniques for fabrication and processing capable of producing high optical quality waveguides has greatly contributed to the growth of waveguide lasers from a topic of fundamental research to an area that encompasses a variety of practical applications. In this first part of the review on optically pumped waveguide lasers the properties that distinguish these sources from other classes of lasers will be discussed. Furthermore, the current state-of-the art in terms of fabrication tools used for producing waveguide lasers is reviewed from the aspects of the processes and the materials involved. 2 1.IntroductionOver the last two decades the field of solid-state planar waveguide lasers has experienced a steady growth, progressing from a laboratory curiosity to an area that demonstrates a broad spectrum of applications, from multiwavelength laser channel arrays for telecommunications to diode-pumped planar structures with multiwatt output powers for sensing and ranging applications. Waveguide lasers are by no means a new field and the first report on such a source dates back in 1961, when laser operation of a waveguide based on an active glass core rod embedded in a low refractive index cladding was demonstrated [1]. However research efforts in the years that followed this report focused primarily on the development of optically pumped laser sources based on high optical quality bulk dielectric laser media in the form of rods and slabs. The merits of the waveguide geometry and the associated optical confinement have been first highlighted in single mode glass optical fibers. Fibers have proven an enabling technology for realization of highly efficient amplifier and laser sources owing to their unrivalled low loss performance and ability to maintain a small spot size and hence high intensities over lengths that are orders of magnitude longer than would normally be allowed by diffraction, [2,3]. Er-doped fiber amplifiers (EDFAs) in particular have directly contributed to the enormous expansion of the optical communications networks that underpin today's internet infrastructure by allowing for signal regeneration and optical data transmission over long distances. The excellent performance of fiber lasers and amplifiers provided motivation and triggered a major techn...

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Nd : Ta 2 O 5 rib waveguide lasers

Cited by 19 publications

References 16 publications

Laser crystals and ceramics: recent advances

Laser crystals and ceramics: recent advances

Phase Transformations in the High‐Temperature Form of Pure and TiO₂‐Stabilized Ta₂O₅

Optically pumped planar waveguide lasers, Part I: Fundamentals and fabrication techniques

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Nd : Ta 2 O 5 rib waveguide lasers

Cited by 19 publications

References 16 publications

Laser crystals and ceramics: recent advances

Laser crystals and ceramics: recent advances

Phase Transformations in the High‐Temperature Form of Pure and TiO2‐Stabilized Ta2O5

Optically pumped planar waveguide lasers, Part I: Fundamentals and fabrication techniques

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Product

Resources

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Phase Transformations in the High‐Temperature Form of Pure and TiO₂‐Stabilized Ta₂O₅