Thermal effects on the excited state absorption and upconversion process of erbium ions in germanosilicate optical fiber

Kyunghwan Oh, T. F. Morse

Research output: Contribution to journalConference article

5 Citations (Scopus)


The effects of temperature on the excited state absorption of erbium ions around 800 nm in germanosilicate optical fiber were studied at 300 and 77 K. Backward amplified spontaneous emission and upconversion fluorescence were monitored tuning the pump wavelength in the absorption band 4I15/24I9/2. Optimal pump wavelength for backward amplified spontaneous emission was experimentally obtained, which was temperature dependent. Thermal population in the Stark levels was found to affect the excited state absorption of the erbium ions resulting in shift of optimal pump wavelength and change in conversion efficiency.

Original languageEnglish
Pages (from-to)51-56
Number of pages6
JournalJournal of Non-Crystalline Solids
Issue number1-3
Publication statusPublished - 1999 Nov 2
EventProceedings of the 1998 Symposium on Advances in Photonic Glasses - Kyongju, Korea
Duration: 1998 Sep 201998 Sep 23


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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