2006年2月
Variation of emission spectra of Er3+-doped YAG-based solid solution
JOURNAL OF ALLOYS AND COMPOUNDS
- ,
- ,
- ,
- 巻
- 408
- 号
- 開始ページ
- 788
- 終了ページ
- 790
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.jallcom.2004.12.074
- 出版者・発行元
- ELSEVIER SCIENCE SA
Er3+-doped YAG crystal has intense emission bands in the U-band region (1625-1675 nm), which is uncommon to the I-4(13/2)-I-4(15/2) transition of Er3+ in many hosts except for garnet type crystals. In order to seek the possibility to broaden the spectrum composed of many sharp bands, solid solutions based on Y3Al5O12 (YAG) and Ca3Al2(SiO4)(3) (CASG) crystals doped with Er3+ ions were prepared by solid-state reactions and their emission spectra in optical-telecommunication band were examined. Both of the YAG and CASG crystals have garnet type structures with similar lattice constants. The spectral linewidth dramatically increased with increasing CASG content, which promises to overcome the difficulty in the gain flatness for optical amplification in the wavelength-division-multiplexing (WDM) system. The line broadening can be attributed to the inhomogeneous distribution of the Er3+ sites achieved by the double substitutions of Si4+ for Al3+ in the tetrahedral site and of Ca2+ for the Y3+. (c) 2005 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
-
- DOI : 10.1016/j.jallcom.2004.12.074
- ISSN : 0925-8388
- Web of Science ID : WOS:000235445300178