SBIR Phase I: Next Generation Vertical Cavity Surface Emitting Lasers

SBIR 第一阶段：下一代垂直腔表面发射激光器

• 批准号: 1214881
• 负责人: Majid Riaziat
• 金额: $ 15万
• 依托单位: OEPIC SEMICONDUCTORS, INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-07-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1214881&HistoricalAwards=false
• 关键词: SBIR; Phase; Next; Generation; Vertical

This Small Business Innovation Research (SBIR) Phase I project proposes to use a novel design and fabrication approach that will bring Vertical Cavity Surface Emitting Lasers (VCSELs) out of their current niche applications and will open the way to their widespread use where currently edge emitting lasers are utilized. These VCSELs can be designed over a broad range of wavelengths covering near-infrared and approaching mid infrared (800nm to 2,500nm). The narrow linewidth and stable linear polarization of these VCSELs make them suitable for use in spectroscopy, communications and solid state laser pumping. What makes this possible is substrate flexibility combined with a special High Contrast Grating (HCG) mirror used for single-mode linearly polarized output. High efficiency and high output power are achieved by very low electrical resistance and efficient heat sinking. The first prototype will have an emission wavelength of 1550nm with the goal of offering a more compact and lower cost alternative to DFB lasers in long-haul fiber optics.The broader impact/commercial potential of this project extends to the fields of fiber communication, spectroscopy, and high power solid state lasers. Next generation VCSELs to be developed in this project will have the single mode and narrow linewidth of a Distributed Feedback (DFB) laser and the beam quality and low cost of a VCSEL at any near infrared wavelength. Of particular interest in communication systems are the reduction of cost per bit, and power consumption per bit of transmitted data. Implementing the proposed VCSELs in fiber optic transceivers results in reduced cost and reduced power consumption over existing edge emitter based solutions. Reducing power consumption in turn leads to miniaturization and high density assembly, which further reduces the cost. Particularly challenging requirements for long wavelength VCSELs to meet are high optical output power and narrow linewidth. The proposed approach makes possible for these VCSELs to meet both of these requirements and to become an attractive candidate not only for fiber communications, but also for use as pump sources for high power solid state lasers. Furthermore, the lack of wavelength constraints makes these devices ideal as sources for overtone spectroscopy in the near infrared.

这项小型企业创新研究（SBIR）I阶段项目建议使用一种新颖的设计和制造方法，该方法将使垂直腔表面发射激光器（VCSELS）从其当前的利基应用中脱离，并将在利用当前发射激光器的情况下为其广泛使用。这些VCSEL可以在覆盖近红外的广泛波长中设计，并接近中红外线（800nm至2,500nm）。这些VCSEL的狭窄线宽和稳定的线性极化使它们适合于光谱，通信和固态激光泵送。使这可能的是基板的灵活性与用于单模式线性极化输出的特殊高对比度光栅（HCG）镜相结合。高效率和高输出功率是通过非常低的电阻和有效的散热器来实现的。第一个原型的发射波长为1550nm，其目的是在长途光纤中提供更紧凑，更低的成本替代品。该项目的更广泛的影响/商业潜力扩展到光纤，光谱，光谱，光谱和高功率固态激光器的领域。在此项目中要开发的下一代VCSEL将具有分布式反馈（DFB）激光的单模式和狭窄的线宽，并且在任何近乎红外波长处的VCSEL的光束质量和低成本。在通信系统中特别感兴趣的是降低每位成本，以及每位传输数据的功耗。在光纤收发器中实施拟议的VCSEL会导致成本降低和基于Edge Emitter的解决方案的功耗降低。减少功耗反过来导致微型化和高密度组装，从而进一步降低了成本。长波长VCSEL的尤其具有挑战性的要求是高光输出功率和狭窄的线宽。提出的方法使这些VCSEL可以满足这两个要求，并成为纤维通信的有吸引力的候选人，而且还可以用作高功率固态激光器的泵源。此外，缺乏波长限制使这些设备成为近红外光谱法的理想来源。