Infrared luminescence and amplification properties of Bi-doped GeO2- Ga2O3- Al2O3glasses

Shifeng Zhou, Huafang Dong, Heping Zeng, Jianhua Hao, Jingxin Chen, Jianrong Qiu

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23 Citations (Scopus)


Bi, Ga, and Al codoped germanium glass was prepared and its optical properties were investigated by absorption, photoluminescence excitation (PLE), and photoluminescence spectra. Two active centers which occupy strong and weak crystal field environment are identified by using the PLE spectrum. The tunable and ultrabroadband luminescence properties are originated from electron transitions of these two active centers. Internal optical gain around 1300 and 1560 nm has been detected. The wavelength-dependent internal gains excited with 808 and 980 nm laser diodes show different characteristics, and the relative flat optical amplification can be realized by choosing 980 nm pumping.
Original languageEnglish
Article number103532
JournalJournal of Applied Physics
Issue number10
Publication statusPublished - 9 Jun 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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