| Presentation | 1995/6/22 Rare earth doped fiber for optical amplifiers operating around 1.3μm Etsuko Ishikawa, Hiroaki Yanagita, Katsuhisa Itoh, Hiroshi Aoki, Hisayoshi Toratani, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Nd^<3+>-doped fiber and Pr^<3+>-doped fiber have been investigated for optical amplifiers operating around 1.3μm. We have studied improvement in the gain performance by optimizing host glasses for Nd^<3+> and Pr^<3+>. Using fluorophosphate glasses chosen for 1.3μm laser host of Nd^<3+>-doped fiber, laser emission and peak gain were first observed at 1.32μm which coincides with a fluorescence peak wavelength. This is attributed to smaller ESA in the fluorophosphate glasses. However, higher gain amplification has been reported with a high NA Pr^<3+>-doped ZrF_4-base fluoride (ZBLAN) single mode fiber. The efficiency of Pr^<3+>-doped fiber can be improved by means of using low phonon energy host glasses and increasing the Δn. We prepared Pr^<3+>-doped In/Ga-based fluoride glass (lower phonon energy than ZBLAN) single mode fibers with the largest Δn ever. Efficient amplification with a gain coefficient of 0.25dB/mW at 1.31μm was demonstrated. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | fiber amplifier / NDF / ESA / fluorophosphate glasses / PDF / fluoride glasses |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 1995/6/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Rare earth doped fiber for optical amplifiers operating around 1.3μm |
| Sub Title (in English) | |
| Keyword(1) | fiber amplifier |
| Keyword(2) | NDF |
| Keyword(3) | ESA |
| Keyword(4) | fluorophosphate glasses |
| Keyword(5) | |
| Keyword(6) | fluoride glasses |
| 1st Author's Name | Etsuko Ishikawa |
| 1st Author's Affiliation | R&D Center, HOYA Corporation() |
| 2nd Author's Name | Hiroaki Yanagita |
| 2nd Author's Affiliation | R&D Center, HOYA Corporation |
| 3rd Author's Name | Katsuhisa Itoh |
| 3rd Author's Affiliation | R&D Center, HOYA Corporation |
| 4th Author's Name | Hiroshi Aoki |
| 4th Author's Affiliation | R&D Center, HOYA Corporation |
| 5th Author's Name | Hisayoshi Toratani |
| 5th Author's Affiliation | R&D Center, HOYA Corporation |
| Date | 1995/6/22 |
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| Volume (vol) | vol.95 |
| Number (no) | 113 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |