-
公开(公告)号：US5629953A
公开(公告)日：1997-05-13
申请号：US435353
申请日：1995-05-05
CPC分类号： H01S3/17 , H01S3/094 , H01S3/1608 , H01S3/1613
摘要： The present invention concerns an optical pumping system making use of a broad continuous absorption band in rare earth doped chalcogenide glasses. The absorption band is approximately 400 nm in width and extends from approximately 600 nm to 1000 nm. Through subjecting the glass to pumping light from an excitation source within the broad absorption band, photoluminescence emissions are produced. Size and strength of the pumping absorption band are such that great flexibility is provided in implementation of the excitation source. Specific embodiments of4 the present invention may utilize Er or Pr doped Ge.sub.33 As.sub.12 S.sub.55 or As.sub.2 S. Selection of the chalcogenide host may adjust the broad absorption band. As an example, a narrower gap chalcogenide glass, such as Ge.sub.28 Sb.sub.12 Se.sub.60, should extend the broad absorption band into the 1064 nm wavelength. Lasers, optical amplifiers and other devices may be realized in accordance with the pumping system of the present invention, and the chalcogenide glass may be formed as a thin film combined on a substrate with a semi-conductor laser.
摘要翻译： 本发明涉及一种利用稀土掺杂的硫族化物玻璃中的宽连续吸收带的光泵送系统。 吸收带的宽度约为400nm，从约600nm延伸至1000nm。 通过使玻璃从宽吸收带内的激发源泵浦光，产生光致发光。 泵浦吸收带的尺寸和强度使得在实现激发源时提供了很大的灵活性。 本发明的具体实施方案可以利用Er或Pr掺杂的Ge33As12S55或As2S。 选择硫属化物主体可以调节宽吸收带。 例如，较窄的间隙硫族化物玻璃，例如Ge28Sb12Se60，应将宽吸收带扩展到1064nm波长。 可以根据本发明的泵送系统来实现激光器，光放大器和其他装置，并且硫族化物玻璃可以形成为在半导体激光器的基板上组合的薄膜。
-
公开(公告)号：US5568497A
公开(公告)日：1996-10-22
申请号：US487180
申请日：1995-06-07
CPC分类号： H01S3/17 , H01S3/094 , H01S3/1608 , H01S3/1613
摘要： The present invention concerns an optical pumping system using a broad continuous chalcogenide emission band of approximately 190 nm in width. The broad emission band is induced by the rare earth doping of a chalcogenide glass. Co-doping using Pr and Er produces a photoluminescence band extending from approximately 1510 nm to 1700 nm. Alternatively, separately Pr and Er doped samples exhibit emission bands considerably wider then the characteristic Pr(1620 nm) and Er (1550 nm) emission bands typically realized in doped oxide glasses. According to the present invention these broad bands are used to produce optical gain over the continuous broad 190 nm band. An excitation source subjects the glass to pumping light to stimulate the broad band emissions. Applied to an optical amplifier, optical signals entering the chalcogenide glass anywhere within the broad range will be amplified. Gain throughout the broad spectrum may be tailored by altering the respective rare earth dopant concentrations or intensity of separate pumping light from the excitation source.
摘要翻译： 本发明涉及使用宽度约为190nm的宽连续硫族化物发射带的光泵送系统。 通过稀土掺杂硫族化物玻璃诱发宽的发射带。 使用Pr和Er的共掺杂产生从大约1510nm延伸到1700nm的光致发光带。 或者，单独的Pr和Er掺杂样品表现出通常在掺杂氧化物玻璃中实现的特征Pr（1620nm）和Er（1550nm）发射带的发射谱带宽得多。 根据本发明，这些宽带用于在连续的宽的190nm波段上产生光学增益。 激发源使玻璃泵送光以刺激宽带辐射。 应用于光放大器，将在宽范围内任何地方进入硫族化物玻璃的光信号将被放大。 可以通过改变来自激发源的分离的泵浦光的相应稀土掺杂剂浓度或强度来调整整个广谱中的增益。
-
搜索结果
2 条记录 (耗时 0.018 秒)