• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Conference on Vertical-Cavity Surface-Emitting Lasers VIII; 20040128-20040129; San Jose,CA; US >Optically pumped VECSEL operating at 1550 nm
【24h】

Optically pumped VECSEL operating at 1550 nm

机译：在1550 nm下工作的光泵浦VECSEL

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We present the design and characteristics of an optically pumped vertical external cavity surface emitting laser emitting near 1550 nm. The InP-based laser was grown by Metalorganic vapor-phase epitaxy including an InGaAsP gain element and an InP/InGaAsP mirror. The gain element comprises 20 strain compensated quantum wells on top of a distributed Bragg reflector. As an external mirror we used a concave spherical mirror, which also provides the outcoupling of light. Gain is achieved by optical pumping with a high power, 1250 nm fiber Raman laser focused on the gain chip. Essential for achieving high output power is to reduce the temperature of the gain material and this is accomplished by bonding an intra-cavity silicon heat spreader to the surface of the gain element. The maximum output power is 260 mW at multi transverse mode operation and 230 mW at single transverse mode operation with a near Gaussian beam profile (M~2 = 1.22) at 240 K. At room temperature the output power was limited to 12 mW. The maximum output power greatly depends on the operating temperature and studies of pump induced thermal effects show that thermal lensing imposes limitations on the attainable power.
机译：我们介绍了在1550 nm附近发射的光泵浦垂直外腔表面发射激光器的设计和特性。基于InP的激光器是通过包括InGaAsP增益元件和InP / InGaAsP镜的金属有机气相外延生长的。增益元件在分布式布拉格反射器的顶部包括20个应变补偿量子阱。作为外部镜，我们使用了凹面球面镜，它也提供了光的外耦合。增益是通过将高功率，1250 nm光纤拉曼激光器聚焦在增益芯片上进行光泵浦来实现的。达到高输出功率的关键是降低增益材料的温度，这是通过将腔内硅散热器结合到增益元件的表面来实现的。最大输出功率在多横向模式操作下为260 mW，在单横向模式操作下为240 m时具有接近高斯光束轮廓（M〜2 = 1.22）的情况下为230 mW。在室温下，输出功率限制为12 mW。最大输出功率很大程度上取决于工作温度，对泵引起的热效应的研究表明，热透镜对可达到的功率施加了限制。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号