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的近红外相干光源的发展。该方法包括使用新颖的手段来将连续波（CW）多瓦泵浦的功率（诸如从掺铒光纤放大器（EDFA）或掺镱光纤放大器（YDFA）得到的）转换到高CW功率当前不可用的波长范围。 输出功率将通过光纤提供。波长转换将具有高效率，大约几十个波长。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至1800 nm的宽范围内制造出许多波长范围内的强大相干光源，而这些波长范围是以前没有的。每个光源都可以在几百纳米范围内进行调谐。 这些光源应找到应用场合的高功率连续波相干源是必要的。可能的应用领域有：激光手术、光动力疗法、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.