| Presentation | 2004-10-22 Tunable Semiconductor Laser using Ladder-Type Filter Seok-Hwan JEONG, Shinji MATSUO, Yuzo YOSHIKUNI, Toru SEGAWA, Yoshitaka OHISO, Hiroyuki SUZUKI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Ladder-type interferometric filter which has wide-tuning-rage over a few tens of nanometers can be applied to widely tunable laser by integrating a ring resonator and a semiconductor optical amplifier (SOA) with the ladder filter. In this laser structure, the oscillation frequency is determined by periodic resonant peaks of the ring resonator, and the ladder filter selects one channel from the periodic resonant peaks. We demonstrate 100GHz channel spacing digitally tunable lasing characteristics in the semiconductor ring laser in which the ladder filter and the ring resonator are monolithically integrated with the SOA. Furthermore, in order to stabilize the oscillation wavelength, the ladder filter needs to have narrow bandwidth and one dominant passband. We report the bandwidth narrowing by increasing diffraction order and one passband response by chirping the ladder filter, respectively. We theoretically analyze spectral characteristics of the chirped ladder filter, and experimentally demonstrate one passband spectral response in the fabricated device based on our numerical analysis. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Tunable laser / tunable filter / ladder-type interferometric filter / ring resonator / multimode interference coupler |
| Paper # | PN2004-49 |
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| Committee | PN |
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| Conference Date | 2004/10/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Photonic Network (PN) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Tunable Semiconductor Laser using Ladder-Type Filter |
| Sub Title (in English) | |
| Keyword(1) | Tunable laser |
| Keyword(2) | tunable filter |
| Keyword(3) | ladder-type interferometric filter |
| Keyword(4) | ring resonator |
| Keyword(5) | multimode interference coupler |
| 1st Author's Name | Seok-Hwan JEONG |
| 1st Author's Affiliation | NTT Photonics Laboratories, Nippon Telegraph and Telephone Corporation() |
| 2nd Author's Name | Shinji MATSUO |
| 2nd Author's Affiliation | NTT Photonics Laboratories, Nippon Telegraph and Telephone Corporation |
| 3rd Author's Name | Yuzo YOSHIKUNI |
| 3rd Author's Affiliation | NTT Photonics Laboratories, Nippon Telegraph and Telephone Corporation |
| 4th Author's Name | Toru SEGAWA |
| 4th Author's Affiliation | NTT Photonics Laboratories, Nippon Telegraph and Telephone Corporation |
| 5th Author's Name | Yoshitaka OHISO |
| 5th Author's Affiliation | NTT Photonics Laboratories, Nippon Telegraph and Telephone Corporation |
| 6th Author's Name | Hiroyuki SUZUKI |
| 6th Author's Affiliation | NTT Photonics Laboratories, Nippon Telegraph and Telephone Corporation |
| Date | 2004-10-22 |
| Paper # | PN2004-49 |
| Volume (vol) | vol.104 |
| Number (no) | 372 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |