Compact high power yellow laser for bio-instrumentation

用于生物仪器的紧凑型高功率黄色激光器

• 批准号: 530830-2018
• 负责人: Xu, Changqing
• 金额: $ 1.82万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=669074
• 关键词: Compact; power; yellow; laser; bio

The aim of this project is to develop a prototype of 561 nm laser suitable for laser lighting required in medical**and analytical & life science. Temperature insensitive PPLN with a quasi-phasing wavelength of 561 nm will**be developed so that efficient second harmonic generation (SHG) can be achieved from 1122 nm to 561 nm**over a broad temperature range. The developed PPLN will then be packaged into a compact footprint to form a**yellow laser by employing the established compact DPSS laser platform in PI's group. Performance of**developed compact laser will be tested and optimized in terms of laser output power, beam profile, and power**stability.**Yellow laser emitting at a wavelength of 561 nm is specially required in many bio-applications, such as**excitation of new dyes or nanodots used in confocal microscopy and flow cytometry, and multi-channel laser**Doppler velocimetry. Despite the progress on the development of 561 nm yellow lasers, the reported 561 nm**lasers cannot satisfy simultaneously the laser lighting requirements for medical and analytical & life science**applications, i.e. compact, low-cost, and high power. Recently, by employing efficient periodically poled**lithium niobite (PPLN) optical nonlinear crystal, we have developed a compact low-cost diode pumped solid**state (DPSS) laser platform, which can achieve watt level green lasers with the highest output power and**smallest footprint in the class. In the proposed project, a prototype 561 nm laser will be developed based on the**established compact low-cost PPLN DPSS laser platform in PI's group.

该项目的目的是开发一种561 nm激光器的原型，适用于医疗 ** 和分析与生命科学所需的激光照明。将开发具有561 nm准相位波长的温度不敏感PPLN，以便在宽温度范围内从1122 nm到561 nm** 实现有效的二次谐波产生（SHG）。开发的PPLN然后将被封装成一个紧凑的足迹，形成一个 ** 黄色激光器采用建立紧凑型DPSS激光平台在PI的小组。** 开发的紧凑型激光器的性能将在激光输出功率、光束轮廓和功率 ** 稳定性方面进行测试和优化。**在许多生物应用中特别需要发射波长为561 nm的黄色激光，例如用于共聚焦显微镜和流式细胞术的新染料或纳米点的激发，以及多通道激光多普勒测速仪。尽管561 nm黄光激光器的发展取得了进展，但报道的561 nm** 激光器不能同时满足医疗和分析与生命科学 ** 应用的激光照明要求，即紧凑、低成本和高功率。近年来，利用高效的周期性极化锂酸锂（PPLN）非线性光学晶体，我们研制出了一种结构紧凑、成本低廉的二极管泵浦固体（DPSS）激光器平台，该平台可以实现功率最高、体积最小的瓦级绿色激光器。在拟议的项目中，将基于PI集团 ** 建立的紧凑型低成本PPLN DPSS激光平台开发原型561 nm激光器。