Nd-doped phosphate glass microstructured optical fiber laser

Zhang, G.; Luo, Fang; Liu, Xiaofeng; Dong, Guoping; Zhang, Q.; Lin, Guei-Ru; Zhou, Qinling; Qiu, Jianrong; Hu, Lili; Chen, D. P.

doi:10.1134/s1054660x10110344

Cited by 9 publications

(4 citation statements)

References 19 publications

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“…This spectrum was measured with a fiber spectrum analyzer (Oceanoptics Maya 2000) with a 0.2 nm resolution. The measured full width of half maximum (FWHM) linewidth is 1.6 nm similar with the results in [14], [15]. The laser center wavelength was 1052.7 nm at the launched pump power of just above threshold and shown a drift to 1053.2 nm when the pump power was increased to the max level of 12 W. Narrow band filters such as fiber Bragg grating, which can be involved in the fiber laser cavity as high reflector or OC, can stabilize the center wavelength and narrow the linewidth.…”

Section: Methodssupporting

confidence: 86%

“…Furthermore, Nd-doped phosphate fiber lasers with a CW output power of 130 mW [12] and 2.1 W [13] from a length of 13 mm and 53 cm multimode phosphate-glass fiber, respectively, ware obtained. More recently, a Nd-doped phosphate photonic crystal fiber (PCF) [14] and a multicore fiber laser [15] generated a single-mode output and a phase-locking operation at 1054 nm in short-length phosphate fibers, respectively, providing prospective applications in short-length high-power laser and mode-locking stability and wavelength matching seed laser for the high-power amplifiers. However, both phosphate fiber lasers gave a relatively low output power, which mainly suffer from a high level of background loss of the active fiber.…”

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confidence: 99%

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Efficient Generation of Watt-Level Output From Short-Length Nd-Doped Phosphate Fiber Lasers

Zhang

Wang

et al. 2011

IEEE Photon. Technol. Lett.

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Abstract-We report experimental results on high-power heavily Nd-doped phosphate continuous-wave (CW) fiber lasers of very short length. The optimum fiber laser with a length of 26 cm exhibited a maximum output power of as much as 2.87 W and a slope efficiency of 44.7% with respect to absorbed pump power at 795 nm. Up to 1-W laser was also obtained from a 6-cm-short active fiber. The fiber lasers were demonstrated at 1053 nm with a linewidth of 1.6 nm, and showed no evidence of roll-over even at highest output power. The output powers were stable and limited only by available pump power.Index Terms-Fiber design and fabrication, fiber lasers, rareearth-doped materials.

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Section: Methodssupporting

confidence: 86%

mentioning

confidence: 99%

Efficient Generation of Watt-Level Output From Short-Length Nd-Doped Phosphate Fiber Lasers

Zhang

Wang

et al. 2011

IEEE Photon. Technol. Lett.

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“…Nonetheless some experimental demonstrations were reported in single clad and double clad fibres, as well as in photonic crystal fibre (PCF) and a multicore fibre [55][56][57][58][59][60][61][62]. In the first part of this chapter, the developed phosphate glass composition is reported and samples fabrication method is described.…”

Section: Nd 3+ Doped Phosphate Glass Fibre Lasermentioning

confidence: 99%

Nd<sup>3+</sup> doped phosphate glass optical fibre lasers

Boetti

Lousteau

Mura

et al. 2013

2013 15th International Conference on Transparent Optical Networks (ICTON)

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Appendix A-Phosphate fibre splicing Appendix B-List of publications during PhD XI LIST OF ACRONYMS AC alternated current BO bridging oxygen CW continuous wave DC direct current DC double cladding DSC differential scanning calorimetry DTA differential thermal analysis EM electromagnetic ESA excited state absorption FWHM full width half maximum GUI graphical user interface IR infrared LASER light amplification by stimulated emission process of radiation LDVT linear variable displacement transducer LED light emitting diode LIDAR light detection and ranging MCVD modified chemical vapour deposition MM multimode NA numerical aperture NIR near infrared NBO non-bridging oxygen OC output coupler OSA optical spectrum analyser OVD Outside vapour deposition PI power-current PCF photonic crystal fibre PCVD Plasma chemical vapour deposition PECVD plasma-enhanced chemical vapour deposition RE rare-earth XII RF radio frequency SBS stimulated Brillouin scattering SESAM saturable absorber mirrors SM single mode SPL solar pumped laser XRD X-ray diffraction TIR total internal reflection UV ultraviolet VAD Vapour phase axial deposition VIS visible brightness, excellent mode quality, high efficiency and enhanced heat dissipation [1,2]. Moreover, fibre laser technology is extremely versatile and could be customized to suit the different applications in terms of output power, operating wavelength, mode of operation (continuous wave CW or pulsed regime), beam quality and dimension, spectral properties and output stability. Therefore fibre lasers find applications in a variety of fields such as industrial material processing, marking, semiconductor device manufacturing, surgery, military technology, remote sensing and scientific instrumentation. Figure I.2. All lasers < 1kW used for Micro Materials Processing [3]. Figure I.3. All lasers ≥1kW used for Macro Materials Processing [3]. Recently there has been a strong interest on the Nd ion emission around 0.9 µm. The main applications are the pumping of Yb and Er doped fibre amplifiers and the generation of blue light obtainable by frequency doubling [12]. This wavelength range has numerous potential applications such as biological and medical diagnostic, trace gas detection and Raman spectroscopy. UV light generation, which can be obtained by devices [23]. In fact the length of the phosphate fibre laser can be substantially decreased even below ten centimetres in order to have an output power in the order of watt level, in a single frequency operation. Moreover, phosphate glasses offer a higher photo-darkening threshold than silica and low nonlinear refractive index, that make them suitable for the realization of high power, high brilliance single-frequency laser sources [24,25]. Another important feature of phosphate glasses is their thermal and This dissertation is organized as follows. Chapter 1 briefly reviews glass definition and main structural and thermodynamics properties. Phosphate glass is introduced along with its peculiar features that made it the material of choice for the deve...

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“…The low glass melting temperature and the optical fiber development compatibility makes the phosphate glasses suitable candidates for photonic applications [9,10]. The Nd 3+ -doped phosphate glasses are the most common and largest volume of laser glass produced today [11].…”

Section: Introductionmentioning

confidence: 99%