SBIR Phase I: High-Power Optical Wavelength Converter

这个小企业创新研究第一阶段项目提出了新型近红外相干光源的开发。该方法包括使用新方法将连续波（CW）多瓦泵浦的功率转换到当前无法获得高连续波功率的波长范围，例如来自掺铒光纤放大器（EDFA）或掺镱光纤放大器（YDFA）的功率。输出功率将通过光纤获得。波长转换将有很高的效率，达到百分之几十的数量级。输出功率最初将达到几瓦，可能扩展到几百瓦。通过这种方法，我们原则上可以在800到1800纳米的广泛波长范围内制造出强大的相干光源，这是以前没有的。每个光源都可以在几百纳米范围内进行调节。这些光源应该在需要高功率连续波相干光源的地方找到应用。可能的应用领域有：激光手术、光动力治疗、热处理、激光加工、遥感、光谱学等。

This Small Business Innovation Research Phase I project proposes the development of novel near-infrared coherent light sources. The approach consists of the use of novel means to convert the power of a continuous- wave (CW) multi-watt pump, such as derived from an erbium-doped fiber amplifier (EDFA), or ytterbium- doped fiber amplifier (YDFA), to a wavelength range where high CW powers are currently not available. The output power will be available via an optical fiber. The wavelength conversion will have high efficiency, of the order of tens of percents. Output power will initially reach several Watts, with possible extension up to several hundred Watts. By this approach, we could in principle make powerful coherent light sources in many wavelength ranges where none have been previously available, in the broad range of 800 to 1800 nm. Each source will be tunable over several hundred nanometers. These light sources should find applications wherever high-power CW coherent sources are Needed. Possible areas of application are: laser surgery, photodynamic therapy, heat treatment, and laser machining, remote sensing, spectroscopy, etc.