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    • 6. 发明授权
    • Tellurite glass and fiber amplifier
    • 碲化玻璃和光纤放大器
    • US5251062A
    • 1993-10-05
    • US961557
    • 1992-10-15
    • Elias SnitzerEva M. VogelJau-Sheng Wang
    • Elias SnitzerEva M. VogelJau-Sheng Wang
    • H01S3/067H01S3/16H01S3/17H01S3/00
    • H01S3/06716H01S3/17H01S3/1603H01S3/177
    • A tellurite glass particularly usable for an amplifier or oscillator utilizing an optical fiber or other guided wave structure. In approximate terms, the glass contain between 58 and 84 molar % of TeO.sub.2, up to 24 molar % Na.sub.2 O, and between 10 and 30 molar % of ZnO. Other alkali and divalent metals may be substituted for the Na and Zn respectively. Combinations of these tellurite glasses can be formed as an optical fiber (10) having a core (12) with a higher refractive index than that of the cladding (14). The tellurite glass of the core, when composed of at least 0.05 molar % Na.sub.2 O, can be doped with large amounts of Er, Pr, or Nd to act as a fiber amplifier at 1.5 or 1.3 .mu.m when pumped with light of a specified shorter wavelength. The core can be doped with other rare-earth metals which would provide optical amplifiers or oscillators at wavelengths appropriate to their lasing characteristics.
    • 特别适用于利用光纤或其他导波结构的放大器或振荡器的碲化物玻璃。 近似地,玻璃含有58至84摩尔%的TeO 2,至多24摩尔%的Na 2 O和10至30摩尔%的ZnO。 其他碱金属和二价金属可分别代替Na和Zn。 这些碲酸盐玻璃的组合可以形成为具有比包层(14)的折射率更高的纤芯(12)的光纤(10)。 当由至少0.05摩尔%的Na 2 O组成时,芯的碲化物玻璃可以掺杂大量的Er,Pr或Nd,以在具有指定的较短的光的情况下泵浦时以1.5或1.3μm的频率充当纤维放大器 波长。 该芯可以掺杂其他稀土金属,这些稀土金属将以适合其激光特性的波长提供光放大器或振荡器。