Visible fiber lasers excited by GaN laser diodes

Fujimoto, Yasushi; Nakanishi, Jun; Yamada, Tsuyoshi; Ishii, Osamu; Yamazaki, Masaaki

doi:10.1016/j.pquantelec.2013.04.002

Cited by 85 publications

(27 citation statements)

References 86 publications

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“…These lasers benefit from the broad emission spectra resulting from the disordered glass matrix, which allows for very wide wavelength tuning in the visible, however often at the drawback of very low output power and efficiency . The cw output power of these lasers is limited to less than 1 W up to now , and further scaling seems not to be straightforward due to the weak material properties of the required low‐phonon fluoride‐fibers. However, glass‐fiber hosts will not be part of this review, a good overview on the current state of the art is given e.g.…”

Section: Laser Performancementioning

confidence: 99%

Out of the blue: semiconductor laser pumped visible rare‐earth doped lasers

Kränkel

Marzahl

Moglia

et al. 2016

Laser & Photonics Reviews

304

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The rise of semiconductor-based pump sources such as In x Ga 1-x N-laser diodes or frequency-doubled optically pumped semiconductor lasers with emission wavelengths in the blue encourages a revisitation of the rare-earth ions Pr 3+ , Sm 3+ , Tb 3+ , Dy 3+ , Ho 3+ and Er 3+ with respect to their properties as active ions in crystalline solid-state laser materials with direct emission in the visible spectral range. Nowadays, some of these blue-pumped visible lasers compete with Nd 3+ -lasers in terms of efficiency and direct lasing at various colors from the cyan-blue to the deep red can be addressed in very simple and compact laser setups. This paper highlights the spectroscopic properties of suitable rare-earth ions for visible lasing and reviews the latest progress in the field of blue-pumped visible rare-earth doped solid-state lasers.

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Section: Laser Performancementioning

confidence: 99%

Out of the blue: semiconductor laser pumped visible rare‐earth doped lasers

Kränkel

Marzahl

Moglia

et al. 2016

Laser & Photonics Reviews

304

View full text Add to dashboard Cite

show abstract

“…Since many decades, GaN material has found wide application in optoelectronic devices such as: UV detectors, LEDs, and LASER diodes [1][2][3][4]. However, the development of high-efficient GaN has been hampered by the absence of perfect and low cost substrates materials.…”

Section: Introductionmentioning

confidence: 99%

“…However, the development of high-efficient GaN has been hampered by the absence of perfect and low cost substrates materials. In spite of the progress made in growth of GaN on sapphire [1][2][3][4][5][6][7], this substrate is not suitable for device processes such as cleaving, etching and forming electrodes. These objectives still the principal cause of several attempts using others substrates.…”

Section: Introductionmentioning

confidence: 99%

Investigations of in situ reflectance of GaN layers grown by MOVPE on GaAs (0 0 1)

Laifi

Chaaben

Bouazizi

et al. 2015

Superlattices and Microstructures

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“…Since the invention of lasers, optical and laser technology has been developing rapidly, and new technologies have always been created, and accordingly, the optical technology has penetrated and used in various fields. I have been engaged in research on optical technology such as laser material development, optical fiber and fiber laser development so far [1][2][3][4], and I have no doubt about its development and possibility. Figure 1 shows the transition of the total shipment value in the field of laser processing in Japan.…”

Section: Introductionmentioning

confidence: 99%

Examination optical education role of university for optical industry and efforts at Chiba Institute of Technology

Fujimoto

Wakita

Suizu

2019

Fifteenth Conference on Education and Training in Optics and Photonics: ETOP 2019

Self Cite

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As announced the other day, the 2018 Nobel Prize in Physics was given for the development of optical tweezers and ultrashort pulse lasers. Optical technology is constantly advancing and penetrating into various industrial fields. Recently, the power of fiber lasers is remarkably increasing, and therefore, it becomes a promising processing tool for metalworking and its marketing value is also increasing. In addition, now we already have many processes that cannot be done without laser, and this trend will continue in the future. However, we often hear from potential users of optical technology who work at machining, "I understand the importance of optical technology, but I am hesitating to introduce because I do not know how to use". This is the same from the actual feeling as an optical researcher of me, and I feel the lack of optical engineers who realize new technological ideas. In other words, the current state of the industry is in short supply of optical engineers. As a factor of short supply of optical engineers, mostly optical education is often in charge of the Department of Electrical and Electronic Engineering, Faculty of Engineering at Japanese universities, and therefore, most of the students that have learnt optics are employed as electrical/electronic engineers after graduation. Meanwhile, it is also true that efforts to resolve at various universities have begun. While introducing our optical education (student experiment: Control of polarization state), we will examine optical education at university and its role for the optical industry.

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Visible fiber lasers excited by GaN laser diodes

Cited by 85 publications

References 86 publications

Out of the blue: semiconductor laser pumped visible rare‐earth doped lasers

Out of the blue: semiconductor laser pumped visible rare‐earth doped lasers

Investigations of in situ reflectance of GaN layers grown by MOVPE on GaAs (0 0 1)

Examination optical education role of university for optical industry and efforts at Chiba Institute of Technology

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