Miniature diode-pumped green laser

微型二极管泵浦绿光激光器

• 批准号: 6694397
• 负责人: JIM HANG
• 金额: $ 25.36万
• 依托单位: NEW DIMENSION RESEARCH & INSTRUMENT
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-10 至 2004-03-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6694397
• 关键词: argon; bioengineering /biomedical engineering; biomedical equipment development; electrical property; electrodes; lasers; miniature biomedical equipment; optics; semiconduction; yttrium

DESCRIPTION (provided by applicant): New Dimension Research & Instrument, Inc. (NDR) proposes to develop a low-cost, miniature green laser module emitting between 510 to 530 nm. Currently only Argon-ion lasers can emit 510nm laser light. Although the Argon gas lasers have been well established for many years, they possess several well-known disadvantages such as limited lifetime of their laser tubes, low overall efficiency, excessive air-cooling, and rather high noise in the output power. Conventional available DPSS/SHG laser has less electrical optical conversion efficiency (less the 1%), high signal to noise ratio due to mode competition in the YAG crystal, and more optics element, and only emitting at 530nm of laser light. The present innovative design of green laser module is also aimed at replacing these bulky and expensive air-cooled Argon-ion lasers and DPSS lasers that are currently used in most biomedical instruments. In the Phase I project, NDR will develop a breadboard prototype of 530 nm green laser using a semiconductor diode, coupled to a KTP, an intra-cavity frequency-doubling crystal. NDR will demonstrate that in comparison to the commercial DPSS laser, our single-mode 530 nm laser prototype has high up-conversion efficiency, high efficiency in heat management, low noise, and high stability. Potential applications of compact and low-cost green lasers in this spectral range include fluorescence imaging, chemical and biological detection, high-resolution spectroscopy, data storage, color printing, displays, photolithography, and remote sensing.

描述(由申请人提供)： 新维度研究和仪器公司(NDR)建议开发一种发射波长在510到530纳米之间的低成本、微型绿色激光模块。目前，只有氩离子激光器可以发射510 nm的激光。尽管Ar气体激光器已经建立了多年，但它们存在着一些众所周知的缺点，如激光管寿命有限，总效率低，空气冷却过多，输出功率噪声较高。传统的DPSS/SHG激光器的电光转换效率较低(不到1%)，由于YAG晶体中的模式竞争而导致信噪比较高，光学元件较多，只能发射530 nm的激光。目前绿色激光模块的创新设计还旨在取代目前在大多数生物医学仪器中使用的这些体积庞大且昂贵的风冷Ar离子激光器和DPSS激光器。 在第一阶段项目中，NDR将使用半导体二极管与腔内倍频晶体KTP耦合开发530 nm绿色激光器的面包板原型。NDR将证明，与商用DPSS激光器相比，我们的单模530 nm激光器样机具有高上转换效率、高热管理效率、低噪声和高稳定性。 紧凑型低成本绿色激光在此光谱范围内的潜在应用包括荧光成像、化学和生物检测、高分辨率光谱、数据存储、彩色打印、显示器、光刻和遥感。