| Presentation | 2004/5/21 Thermally-Induced-Birefringence Effects of Highly Nd-Doped YAG Ceramic Lasers Ichiro SHOJI, Takunori TAIRA, Akio IKESUE, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Theramlly-induced-birefringence effects of Nd:YAG ceramic lasers are accurately measured. Depolarization for the ceramics is found to be nearly same with that for (lll)-cut single crystals if Nd concentration is same. Under nonlasing condition, the thermally induced birefringence becomes larger as Nd concentration increases due to dominating nonradiative relaxation. However, under lasing, depolarization is measured to be 1/3 of that under nonlasing because the stimulated emission reduces the nonradiative process, which decreases the thermal load. Moreover, direct pumping into the emitting level using a 885nm pump source intrinsically reduces the heat generation compared with the conventional 808nm pumping, and it has been experimentally verified that the depolarization and the thermal load are reduced by 30 % by the direct pumping. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | ceramic laser / thermally induced birefringence / depolarization / thermal load / direct pumping |
| Paper # | LQE2004-4 |
| Date of Issue |
| Conference Information | |
| Committee | LQE |
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| Conference Date | 2004/5/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| 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) | Thermally-Induced-Birefringence Effects of Highly Nd-Doped YAG Ceramic Lasers |
| Sub Title (in English) | |
| Keyword(1) | ceramic laser |
| Keyword(2) | thermally induced birefringence |
| Keyword(3) | depolarization |
| Keyword(4) | thermal load |
| Keyword(5) | direct pumping |
| 1st Author's Name | Ichiro SHOJI |
| 1st Author's Affiliation | Department of Electric, Electronic, and Communication Engineering, Chuo University() |
| 2nd Author's Name | Takunori TAIRA |
| 2nd Author's Affiliation | Institute for Molecular Science |
| 3rd Author's Name | Akio IKESUE |
| 3rd Author's Affiliation | Japan Fine Ceramics Center |
| Date | 2004/5/21 |
| Paper # | LQE2004-4 |
| Volume (vol) | vol.104 |
| Number (no) | 98 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |