Differentially pumped optical amplifer and mopa device
文献类型：专利
| 作者 | WELCH, DAVID F.; SCIFRES, DONALD R.; WAARTS, ROBERT G.; MEHUYS, DAVID G.; HARDY, AMOS A.; PARKE, ROSS A. |
| 发表日期 | 1996-07-23 |
| 专利号 | US5539571 |
| 著作权人 | SDL, INC. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Differentially pumped optical amplifer and mopa device |
| 英文摘要 | An optical amplifier semiconductor device which is differentially pumped and a master oscillator power amplifier (MOPA) device employing such an amplifier. The amplifier allows the light propagating therein to diverge along at least part of its length, and may be a flared amplifier having a gain region that increases in width toward its output at a rate that equals or exceeds the divergence of the light. The amplifier is pumped with a current density at its input end which is smaller than the current density used to pump the output end for maintaining coherence of the beam to high power levels. Differential pumping may be both longitudinal and lateral within the amplifier. A single mode preamplifier section may be optically coupled to the input end of the amplifier. The amplifier input may have a width which is the same as or wider than that of the preamplifier output. The preamplifier may have a constant mode width or may be tapered to alter the divergence of the beams provided to the amplifier section. The laser oscillator in the MOPA device may be a single mode DBR laser diode monolithically integrated on the same substrate as the optical amplifier. Laser sources external to an amplifier chip may also be used. The input portion of the amplifier or the preamplifier section, if present, may be modulated. The laser oscillator might also be modulated if it has a high Q cavity. Tunable laser oscillators are also disclosed. |
| 公开日期 | 1996-07-23 |
| 申请日期 | 1994-02-28 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/35037]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | SDL, INC. |
| 推荐引用方式 GB/T 7714 | WELCH, DAVID F.,SCIFRES, DONALD R.,WAARTS, ROBERT G.,et al. Differentially pumped optical amplifer and mopa device. US5539571. 1996-07-23. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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