公开(公告)号：EP2392056A1

公开(公告)日：2011-12-07

申请号：EP10703685.7

申请日：2010-01-25

申请人： Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips Electronics N.V.

发明人： BONELLI, Lucia ,  BENGOECHEA APEZTEGUIA, Jaione ,  WEICHMANN, Ulrich

IPC分类号： H01S3/105 ,  H01S3/08

CPC分类号： H01S3/105 ,  H01S3/0809 ,  H01S3/09415 ,  H01S3/1613 ,  H01S3/1653

摘要： The present invention relates to a method of switching laser emission of a solid state laser between different emission wavelengths, said different emission wavelengths being based on different electronic transitions in a solid state laser medium (3) of the solid state laser. The at least two end mirrors (1, 2) of the solid state laser are designed to allow lasing of the laser at the different emission wavelengths and coupling out of the different emission wavelengths at one end mirror (2) of the laser cavity. The switching of the laser emission is achieved by switching the cavity length of the laser cavity between different cavity lengths, wherein the different cavity lengths are selected such that at each of the cavity lengths the solid state laser lases at only one of the different emission wavelengths which is different from the emission wavelengths at the other of the selected cavity lengths. With the method and corresponding device an easy switching between emission wavelengths of a solid state laser is possible.

公开(公告)号：EP2188874A2

公开(公告)日：2010-05-26

申请号：EP08789601.5

申请日：2008-08-12

申请人： Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips Electronics N.V.

发明人： WEICHMANN, Ulrich ,  BENGOECHEA APEZTEGUIA, Jaione ,  MOENCH, Holger

IPC分类号： H01S3/082 ,  H01S3/107

CPC分类号： H01S3/107 ,  H01S3/08054 ,  H01S3/0809 ,  H01S3/10061 ,  H01S3/1613 ,  H01S3/1638 ,  H01S3/1645 ,  H01S3/1653 ,  H04N9/3129 ,  H04N9/3161

摘要： The present invention relates to a switchable dual wavelength solid state laser with a solid state gain medium (1) which is selected to emit optical radiation at a first wavelength with a first polarization and of at least a second wavelength with a second polarization different from said first polarization when optically or electrically pumped. A polarizing device (7) is arranged within the laser cavity, said polarizing device (7) being adjustable at least between said first and said second polarization. The two end mirrors (2, 3) of the laser cavity are designed to allow lasing of the solid state laser at the first wavelength when the polarizing device (7) is adjusted to the first polarization, and to allow lasing of the solid state laser at the second wavelength when the polarizing device (7) is adjusted to the second polarization. The proposed solid state laser allows an easy switching between two emission wavelengths. The polarizing device (7) is for example realized by a combination of a Pockels cell (8) and a polarizer (9). End mirrors (2, 3) suppress unwanted wavelengths and a beam clump (10) absorbs the radiation not fed-back in the resonator.

公开(公告)号：EP1777281A2

公开(公告)日：2007-04-25

申请号：EP06022146.2

申请日：2006-10-23

申请人： Fujifilm Corporation

发明人： Takata, Masahiro ,  Suzuki, Masayuki

IPC分类号： C09K11/80 ,  H05B33/14 ,  C01F17/00 ,  C04B35/44 ,  H01J1/62 ,  H01S3/00

CPC分类号： C09K11/7774 ,  C01B13/14 ,  C01F17/0025 ,  C01P2002/30 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2002/84 ,  C04B35/01 ,  C04B35/44 ,  C04B35/6261 ,  C04B35/6262 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3241 ,  C04B2235/3286 ,  C04B2235/3287 ,  C04B2235/3418 ,  C04B2235/604 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/6567 ,  C04B2235/6581 ,  C04B2235/761 ,  C04B2235/762 ,  C04B2235/764 ,  C04B2235/79 ,  C04B2235/9653 ,  H01S3/0606 ,  H01S3/0615 ,  H01S3/0621 ,  H01S3/08095 ,  H01S3/09415 ,  H01S3/1603 ,  H01S3/1613 ,  H01S3/164 ,  H01S3/1643 ,  H01S3/1691

摘要： Agarnet type compoundhas a composition, whichmaybe represented by the general formula:

         Al(III) 3-2x A2(II) x A3(III) x B(III) 2 C1(III) 3-x C2(IV) x O 12

wherein each of the Roman numerals in the parentheses represents the valence number of ion; each of A1, A2, and A3 represents the element at the A site; B represents the element at the B site; each of C1 and C2 represents the element at the C site; each of A1, A2, B, C1, and C2 represents at least one kind of element exhibiting the corresponding valence number of ion defined above; A3 represents at least one kind of element selected from the group consisting of trivalent rare earth elements of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; A1 and A3 represent different elements; x represents a number satisfying a condition 0

摘要翻译： Agarnet类型compoundhas的组合物，whichmaybe由通式表示：ƒ€€€ƒƒƒ€€€ƒƒƒ€€ƒ铝（III）3-2x A2（II）x A3（III）x B（III） 2 C1（III）3-x C2（IV）x O 12，其中，每个括号中的darstellt离子的价数的罗马数字的; 每个A1，A2，和A3的darstellt在A位的元素; 乙darstellt在B位点的元素; 各C1和C2的darstellt在C位的元素; 每个A1，A2，B，C1，和C2 darstellt至少一种元素参展上述定义的离子的相应的化合价数的; A3 darstellt至少一种选自镧，铈，镨，钕，钐，铕，钆，铽，镝，钬，铒，铥，镱，和Lu的三价稀土元素的选定元素的; A1和A3表示不同的元素; X darstellt许多满足条件0

公开(公告)号：EP0929920B1

公开(公告)日：2002-12-04

申请号：EP97942924.8

申请日：1997-09-13

申请人： Deutsche Telekom AG

发明人： VOBIAN, Joachim ,  BONESS, Reiner ,  DÖRING, Heinz ,  PEUPELMANN, Jens ,  SCHMIETAINSKI, Uwe

IPC分类号： H01S3/06 ,  H01S3/098 ,  G02B6/16

CPC分类号： H01S3/06708 ,  G02B6/02266 ,  G02B6/03627 ,  G02B6/29377 ,  H01S3/06725 ,  H01S3/1613 ,  H01S3/173 ,  H01S2301/085

公开(公告)号：EP0985158A1

公开(公告)日：2000-03-15

申请号：EP98937936.7

申请日：1998-05-20

申请人： CORNING INCORPORATED

发明人： BANGE, James, C. ,  BORRELLI, Nicholas, F. ,  CORNELIUS, Lauren, K. ,  O'CONNELL, John, W. ,  TICK, Paul, A.

IPC分类号： G02B6/00

CPC分类号： G02B6/02 ,  C03B37/023 ,  C03B37/0235 ,  C03B37/15 ,  C03B2201/12 ,  C03B2201/34 ,  C03B2201/58 ,  C03B2201/82 ,  C03B2203/24 ,  C03B2205/10 ,  C03C3/062 ,  C03C10/16 ,  C03C13/006 ,  C03C13/04 ,  C03C13/046 ,  H01S3/06716 ,  H01S3/1613 ,  Y02P40/57

摘要： The present invention is directed to a fluorinated rare earth doped glass composition and method for making a glass-ceramic optical article therefrom, e.g. optical fiber waveguides, fiber lasers and active fiber amplifiers, having application in the 1300 nm and 1550 nm telecommunications windows. The inventive compositions include Pr3+ and/or Dy3+ in a concentration range of between 300 - 2,000 ppmw and Ag+ in a concentration range of between 500 - 2,000 ppmw; or Er3+ in a concentration range of between 500 - 5,000 ppmw and Ag+ in a concentration range of between 0 - 2,000 ppmw. The monovalent silver ion provides an ionic charge balanced glass-ceramic crystal. These compositions exhibit reduced or absent rare earth ion clustering and fluorescence quenching effects in the presence of high concentrations of rare earth ion dopants.

公开(公告)号：EP0777925A1

公开(公告)日：1997-06-11

申请号：EP95929177.0

申请日：1995-08-22

申请人： BRITISH TELECOMMUNICATIONS public limited company

发明人： SMITH, Kevin ,  PATACA, Daniel, Moutinho ,  DE LACERDA ROCHA, Monica

IPC分类号： G02F1 ,  H01S3

CPC分类号： H01S3/067 ,  H01S3/0675 ,  H01S3/106 ,  H01S3/1109 ,  H01S3/1112 ,  H01S3/1613 ,  H01S2301/085

摘要： An optical pulse generator comprises a FM mode locked laser that is configured to produce dark optical pulses. The laser comprises a cavity (M1, M2) and a Pr3+ doped fluoride fibre (3) pumped by a source (1). The output is mode locked by a phase modulator comprising a silica fibre (2) in the cavity that receives modulating pulses from a DFB laser (7), so as to alter the refractive index of the fibre (2) and cross phase modulate the laser light. The phase modulation combines with the dispersive effect of the fibre (3) to produce dark output pulses.

公开(公告)号：EP0535798A2

公开(公告)日：1993-04-07

申请号：EP92307736.6

申请日：1992-08-25

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Ohishi, Yasutake ,  Kanamori, Terutoshi ,  Nishida, Yoshiki ,  Mori, Atsushi ,  Sudo, Shoichi

IPC分类号： C03C13/04 ,  H01S3/06

CPC分类号： H01S3/06716 ,  C03C4/0071 ,  C03C13/042 ,  H01S3/1608 ,  H01S3/1611 ,  H01S3/1613 ,  H01S3/1618 ,  H01S3/173

摘要： Fluoride glass-based optical fiber for an optical amplifier which contains rare earth metal ions in the core glass has a relative refractive index difference Δn between the core and the cladding of 1.4% or more. The core glass contains PbF 2 in a proportion of 25 mol% or less based on the total composition of the core glass. The fluoride glass is doped with rare earth metal ions, and part of the fluorine in the glass may be substituted by at least one halogen. Pr 3+ , Pr 3+ -Yb 3+ , Pr 3+ -Nd 3+ , or Pr 3+ -Er 3+ can be doped as the rare earth metal ions. Chlorine, bromine or iodine may be used as the halogen.

摘要翻译： 用于在芯玻璃中含有稀土类金属离子的光放大器的氟化物玻璃基光纤，芯与包层之间的相对折射率差Wn为1.4％以上。 芯玻璃含有基于芯玻璃的总组成的25摩尔％以下的PbF 6。 氟化物玻璃掺杂有稀土金属离子，玻璃中的氟的一部分可以被至少一个卤素取代。 Pr＆3＆copy＆，Pr 3＆copy＆-Yb＆3＆copy＆，Pr 3＆copy＆-Nd＆lt; 3＆copy＆，或者Pr 3＆复制＆Er <3>＆copy＆可以掺杂为稀土金属 离子。 可以使用氯，溴或碘作为卤素。

公开(公告)号：EP0985158A4

公开(公告)日：2004-07-28

申请号：EP98937936

申请日：1998-05-20

申请人： CORNING INC

发明人： BANGE JAMES C ,  BORRELLI NICHOLAS F ,  CORNELIUS LAUREN K ,  O'CONNELL JOHN W ,  TICK PAUL A

IPC分类号： G02B6/00 ,  C03B37/014 ,  C03B37/023 ,  C03B37/15 ,  C03C3/062 ,  C03C10/16 ,  C03C13/00 ,  C03C13/04 ,  G02B6/02 ,  H01S3/067 ,  H01S3/16

CPC分类号： G02B6/02 ,  C03B37/023 ,  C03B37/0235 ,  C03B37/15 ,  C03B2201/12 ,  C03B2201/34 ,  C03B2201/58 ,  C03B2201/82 ,  C03B2203/24 ,  C03B2205/10 ,  C03C3/062 ,  C03C10/16 ,  C03C13/006 ,  C03C13/04 ,  C03C13/046 ,  H01S3/06716 ,  H01S3/1613 ,  Y02P40/57

摘要： The present invention is directed to a fluorinated rare earth doped glass composition and method for making a glass-ceramic optical article therefrom, e.g. optical fiber waveguides, fiber lasers and active fiber amplifiers, having application in the 1300 nm and 1550 nm telecommunications windows. The inventive compositions include Pr3+ and/or Dy3+ in a concentration range of between 300 - 2,000 ppmw and Ag+ in a concentration range of between 500 - 2,000 ppmw; or Er3+ in a concentration range of between 500 - 5,000 ppmw and Ag+ in a concentration range of between 0 - 2,000 ppmw. The monovalent silver ion provides an ionic charge balanced glass-ceramic crystal. These compositions exhibit reduced or absent rare earth ion clustering and fluorescence quenching effects in the presence of high concentrations of rare earth ion dopants.

公开(公告)号：EP1039593A2

公开(公告)日：2000-09-27

申请号：EP00105778.5

申请日：2000-03-18

申请人： NEC CORPORATION

发明人： Kasamatsu, Tadashi, c/o NEC Corporation

IPC分类号： H01S3/094 ,  H01S3/16 ,  H01S3/067

CPC分类号： H01S3/094 ,  H01S3/06716 ,  H01S3/094003 ,  H01S3/094096 ,  H01S3/1608 ,  H01S3/1613 ,  H01S3/1616 ,  H01S3/173

摘要： A laser amplifier and/or oscillator comprise a gain medium including rare earth dopant in a host medium. Ions of the rare earth dopant has an energy level structure including a ground level and a pair of laser upper level and laser lower levels between which a stimulated transition is to be produced after production of a population inversion between the pair of laser upper and laser lower levels. A first exciting light source is coupled to the gain medium for introducing first exciting light to said gain medium to produce said population inversion. A second exciting light source is coupled to the gain medium for introducing second exciting light source to the gain medium to raise the rare earth dopant ions from the ground level to the laser lower level.

摘要翻译： 激光放大器和/或振荡器包括在主介质中包括稀土掺杂剂的增益介质。 稀土掺杂剂的离子具有能量级结构，其包括地平面和一对激光上层和激光下层，在激光上层和激光下层之间产生一个激光上层与激光层之间的群体反演之后将产生一个受激变迁 水平。 第一激励光源耦合到增益介质，用于将第一激发光引入所述增益介质以产生所述总体反转。 第二激励光源耦合到增益介质，用于将第二激发光源引入增益介质，以将稀土掺杂剂离子从地平面升高到激光器较低水平。

公开(公告)号：EP0846353A1

公开(公告)日：1998-06-10

申请号：EP96928548.0

申请日：1996-08-23

申请人： UNIVERSITY OF SOUTHAMPTON

发明人： SAMSON, Bryce, Neilson ,  HEWAK, Daniel, William Little Staplewood ,  LAMING, Richard, Ian ,  PAYNE, David, Neil ,  BROCKLESBY, William, Simon

IPC分类号： H01S3 ,  C03C3 ,  C03C4 ,  C03C13

CPC分类号： C03C3/321 ,  C03C4/0071 ,  C03C13/043 ,  H01S3/06716 ,  H01S3/1613

摘要： An optical fibre amplifier, laser or superluminescent source, consisting of a chalcogenide glass matrix hosting trivalent rare earth ions and which is doped with oxide in the form of a metallic oxide. The device utilizes the properties of the added oxide to improve the fabrication and efficiency of optical waveguide sources, in particular for applications around 1.3 νm. Specifically, the oxide broadens the wavelenght range for pump absorption, broadens the wavelength range for light emission, increases the device efficiency through a change in lifetime of certain laser levels and modifies properties of the glass to prevent crystallization during fibre fabrication. The device exploits the intentional addition of oxide to improve amplifier, laser, glass and fibre properties.