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Novel low cost electronically tunable external cavity laser for high resolution spectroscopy

用于高分辨率光谱的新型低成本电子可调谐外腔激光器

基本信息

批准号：
710354
负责人：
金额：
$ 12.74万
依托单位：
TWO TREES PHOTONICS LTD
依托单位国家：
英国
项目类别：
GRD Proof of Concept
财政年份：
2014
资助国家：
英国
起止时间：
2014 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=710354
关键词：
Novel low cost electronically tunable

项目摘要

External Cavity Diode Lasers (ECDL) can replace the more complex lasers in scientific &commercial applications e.g. high resolution spectroscopy but the mechanical wavelengthtuning approach used by current ECDLs fundamentally restricts their tuning range (flexibility)and resolution (linewidth) and prohibits synchronous multi-wavelength operation. Mitigationmeasures add significant complexity & cost. 2TP has identified an opportunity to use phaseonlyholography create an ECDL without these limitations, creating a value step change. 2TPsproject will prove enabling technologies for a superior tunable ECDL that will offer improvedperformance & affordability for the user, thus capturing market share for 2TP.To deliver the proposed project 2TP will need to address challenges in the areas of:• Chemistry –research liquid crystal chemistries & spectral modelling of gas absorptionlines• Physics – modelling, experiments with high resolution filter & low cost lasers• Software – use of genetic algorithms to control ECDL operation• Integration – manufacture and test aspects of the technologyThe project will deliver:a. An addressable high resolution wavelength selectable filter with no mechanicallymoving parts The electronically controlled, software reconfigurable technology will be simplein construction with multi-wavelength synchronous operation capability.b. A low cost, high resolution ECDL with a wide tuning range, capable of multi-speciesdetection.c. A multi-gas detection technology demonstrator based on a) and b) above.

外腔二极管激光器（ECDL）可以在科学和商业应用中取代更复杂的激光器，例如高分辨率光谱，但目前ECDL使用的机械波长调谐方法从根本上限制了它们的调谐范围（灵活性）和分辨率（线宽），并禁止同步多波长操作。缓解措施增加了显著的复杂性和成本。2TP已经确定了一个机会，可以使用阶段全息术创建一个没有这些限制的ECDL，从而创建一个有价值的步骤更改。2TP项目将为卓越的可调ECDL提供支持技术，为用户提供更高的性能和可负担性，从而为2TP夺取市场份额。为了交付拟议的项目，2TP将需要解决以下领域的挑战：•化学-研究液晶化学和气体吸收线的光谱建模•物理-建模，高分辨率滤波器和低成本激光器的实验•软件-使用遗传算法来控制ECDL操作•集成-技术的制造和测试方面。电子控制、软件可重构技术结构简单，具有多波长同步操作能力。一种低成本，高分辨率，宽调谐范围的ECDL，能够检测多物种。基于上述A)和b)的多气体检测技术演示。