Miniaturized cw LiNdP4O12 laser pumped with a semiconductor laser

Saruwatari, M.; Kimura, Tatsuya; Otsuka, Kenju

doi:10.1063/1.89069

Cited by 32 publications

(3 citation statements)

References 11 publications

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“…Several crystalline fibre-like lasers are also known with active element diameters of 0.1-1 mm, e.g. α-Al2O3:Ti 3+ (∅ = 350 µm and l = 11.2 mm) [683], Y3Al5O12:Tm 3+ (∅ = 1 mm and l = 3 mm) [624], and LiNdP4O12:Nd 3+ (∅ = 130 µm and l = 1.33 mm) [625], YVO4:Nd 3+ (∅ = 400 µm and l = 1 mm) [795], and Y3Al5O12:Nd 3+ (ceramic, (∅ = 0.9 mm and l = 65 mm)) [796] a) P, CW, q-CW, Q-sw, and ps: pulse, continuous-wave, quasi-continuous-wave, Q-switched mode, and picosecond pulse lasing generation modes, respectively. b) CC, colour-centre laser; DL, dye laser; Xe and W, xenon and tungsten-iodine lamp pumping sources, respectively (as in Table 10).…”

Section: Discussionmentioning

confidence: 99%

Laser crystals and ceramics: recent advances

Kaminskii

2007

Laser & Photonics Reviews

370

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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Section: Discussionmentioning

confidence: 99%

Laser crystals and ceramics: recent advances

Kaminskii

2007

Laser & Photonics Reviews

370

236

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“…Resonators of this kind have almost been realized for LNP and NPP cube lasers [1, 11,27]. DFB and DBR resonators for miniature neodymium lasers are extremely difficult to realize, for owing to neodymium materials having a small relative fluorescence bandwidth of only a few 10~4 the relative error of the grating constant of the DFB or DBR waveguide should be less than 10~4 in order to satisfy the Bragg condition.…”

Section: Discussionmentioning

confidence: 99%

Optically Pumped Miniature Solid-State Lasers from Stoichiometric Neodymium Compounds

Möckel¹

1978

Frequenz

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In fiber-optical communication systems miniature solid-state lasers from Stoichiometric neodymium compounds are being considered for use as optical transmitters in addition to light-emitting diodes and semiconductor lasers. Starting with a short survey on Stoichiometric neodymium compounds and their basic properties, the simplest types of miniature lasers -cube laser, thin-film laser, stripegeometry laser and fiber laser -and their fabrication technologies are described. The laser properties are then discussed and pumping with spectrally matched light-emitting diodes is treated. Finally attention is directed to further problems which have to be solved before these types of laser can be used in optical communications.Übersicht: Für die optische Nachrichtenübertragung fiber Glasfasern wird neben Lumineszenzdioden und Halbleiterlasern auch der Einsatz von Miniaturfestkörperlasern aus stöchiometrischen Neodymverbindungen als optischen Sendern angestrebt. In einem kurzen Überblick werden zunächst die stöchiometrischen Neodymverbindungen und ihre wesentlichen Daten dargestellt. Im Anschluß daran werden die einfachsten Miniaturlasertypen -Würfellaser, Dünnschichtlaser, Streifenlaser und Faserlaser -beschrieben und ihre Herstellungstechnologien behandelt. Nach der Diskussion der Lasereigenschaften wird auf das Pumpen dieser Miniaturlaser mit spektral angepaßten Lumineszenzdioden eingegangen. Abschließend wird auf weitere Probleme hingewiesen, die vor dem Einsatz dieser Lasertypen in der optischen Nachrichtenübertragung noch zu lösen sind. Für die Dokumentation: Optische Nachrichtentechnik/Miniaturfestkörperlaser/stöchiometrische Neodymverbindungen/ • Würfellaser/Wellenleiterlaser/Lasereigenschaften/optisches Pumpen/LumineszenzdiodenIn fiber-optical communication systems light-emitting diodes and, for broadband transmission, GaAs laser diodes, have thus far been considered for use as optical transmitters. Although considerable advances have recently been made in extending the service life and improving the stability of emission of laser diodes, optically pumped miniature solid-state lasers made of Stoichiometric neodymium materials are also under discussion for the broadband optical communication systems of the more distant future [1]. The essential features of these miniature lasers are: 1. The emission wavelength of approx. 1.05 (in one case of 1.3 ) lies near the dispersion and attenuation minimum of currently available glass fibers (cf. W. Heiniein, this issue pp. 79-84. 2. No service life problems exist for neodymium materials. 3. The temperature response of the emission wavelengthis smaller than that of semiconductor light sources by a factor of 10 2 to 10 3 .A major drawback of miniature lasers as compared with laser diodes is however their considerably lower overall effiency owing to the optical pumping and their more complicated hybrid technology. Optically Pumped Miniature Solid-Slate Lasers from Stoichiometric Neodymium CompoundsFREQUENZ 32(1978)3

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“…Up to now, LNP crystal has the lowest saturation parameter (I s ) of 49 W mm À2 3 and the lowest measured pump threshold energy of 0.14 mW. 5 Besides, LNP possesses no ferroelastic twinning domains and doesn't have the pronounced ability to be cleaved of NdP 5 O 14 (NPP). 6 As a high quality laser material, LNP crystal was investigated in the early 1970s, but it hasn't been applied widely so far.…”

Section: Introductionmentioning

confidence: 99%