An efficient, diode-pumped, 2 μm Tm:YAG waveguide laser

Rameix, A.; Borel, C.; Chambaz, Bernard; Ferrand, B; Shepherd, D.P.; Warburton, T.J.; Hanna, D.C.; Tropper, A.C.

doi:10.1016/s0030-4018(97)00334-9

Cited by 59 publications

(25 citation statements)

References 13 publications

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“…The main limitations of this method are the lack of accurate thickness control and the poor surface uniformity of the layer, which however, can be overcome by polishing. LPE has been extensively used for growth of oxide layers and for waveguide lasers in particular, early work focused on development of rare-earth doped garnet films [66,[68][69][70][71][72][73][74][75].Research interest in recent years has shifted towards deposition of rare-earth doped double tungstate structures [65,[76][77][78][79][80][81][82][83][84][85], due to a number of favorable properties of these crystals, such as the possibility of doping with high concentrations of rare earth ions and the large emission and absorption cross sections of the latter in this family of crystals. Finally, there is only one report to date on a waveguide laser based on other crystals, namely on YLF:Nd 3+…”

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confidence: 99%

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

Grivas

2011

Progress in Quantum Electronics

194

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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confidence: 99%

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

Grivas

2011

Progress in Quantum Electronics

194

102

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“…So far, true planar Tm-waveguide lasing has only been demonstrated based on YAG. The first Tm:YAG waveguide reported was grown by liquid phase epitaxy (LPE) and delivered 180 mW of CW output power at a laser wavelength of 2012 nm using a longitudinal pump geometry [19]. High-power side-pumped planar Tm:YAG waveguide lasers were also studied.…”

Section: +mentioning

confidence: 99%

Continuous-wave and Q-switched Tm-doped KY(WO_4)_2 planar waveguide laser at 184 µm

Bolaños¹,

Carvajal²,

Mateos³

et al. 2011

Opt. Express

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High-quality monoclinic planar waveguide crystals of Tm-doped KY(WO 4 ) 2 codoped with Gd 3+ and Lu 3+ were grown by liquid-phase epitaxy. For the first time, planar waveguide lasing was demonstrated in a monolithic cavity in the 2 µm spectral range. The laser was operated in the Q-switched mode using a Cr 2+ :ZnSe crystal as saturable absorber and in the continuous-wave regimes. The Q-switched planar waveguide laser delivered pulse energies up to 120 nJ at a repetition rate of 7 kHz.

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“…[1][2][3][4] Traditional host materials for Tm 3+ active ion are YAG single crystals, [5][6][7] which have been highly developed because of their easy fabrications and profound investigations. Some other Tm 3+ doped crystals such as vanadates 8 and YAP single crystals have been investigated.…”

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confidence: 99%

Structural and optical properties of Tm:Y2O3 transparent ceramic with La2O3, ZrO2 as composite sintering aid

Zhou

Teng

et al. 2012

Journal of the European Ceramic Society

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An efficient, diode-pumped, 2 μm Tm:YAG waveguide laser

Cited by 59 publications

References 13 publications

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

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

Continuous-wave and Q-switched Tm-doped KY(WO_4)_2 planar waveguide laser at 184 µm

Structural and optical properties of Tm:Y2O3 transparent ceramic with La2O3, ZrO2 as composite sintering aid

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