| Presentation | 2002/8/15 Analysis and design of Q-switched erbium-doped fiber lasers and their application to OTDR Shoji ADACHI, Yahei KOYAMADA, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We numerically analyzed Q-switched erbium-doped fiber lasers (QEFL) using a traveling-wave analytical model that allows axial nonuniformity in the population inversion and light intensity within the QEFLs. The model enabled us to calculate complicated output-pulse shapes from the QEFLS, such as those with a multi peak-structure. The calculated and measured pulse shapes agreed well. We found a guide for designing QEFLs through repeated calculations. We designed a QEFL to generate output pulses suitable for constructing optical time-domain reflectometers (OTDR) of high performance. We developed an OTDR by using a QEFL with a dynamic range of 35 dB and a spatial resolution of less than 100 m. This result represents an increase of more than 5 dB in the dynamic range over current OTDRs. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Q-switched lasers / erbium-doped fiber lasers / traveling-wave model / OTDR |
| Paper # | OCS2002-42 |
| Date of Issue |
| Conference Information | |
| Committee | OCS |
|---|---|
| Conference Date | 2002/8/15(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 | Optical Communication Systems (OCS) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis and design of Q-switched erbium-doped fiber lasers and their application to OTDR |
| Sub Title (in English) | |
| Keyword(1) | Q-switched lasers |
| Keyword(2) | erbium-doped fiber lasers |
| Keyword(3) | traveling-wave model |
| Keyword(4) | OTDR |
| 1st Author's Name | Shoji ADACHI |
| 1st Author's Affiliation | Ando Electric Co.,Ltd() |
| 2nd Author's Name | Yahei KOYAMADA |
| 2nd Author's Affiliation | Ibaraki University |
| Date | 2002/8/15 |
| Paper # | OCS2002-42 |
| Volume (vol) | vol.102 |
| Number (no) | 265 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |