Optical Parametric Oscillators

光学参量振荡器

Chromacity is a leading manufacturer of high-performance optical parametric oscillators for scientific and industrial communities worldwide.

Chromacity是高性能光学参量振荡器的全球领先厂家，应用包括了科研和工业等领域

What is an Optical Parametric Oscillator?

什么是光学参量振荡器？

An optical parametric oscillator (OPO) is a coherent light source that makes use of a parametric amplification process to generate light, over a wide range of wavelengths. Optical parametric oscillators consist of a nonlinear crystal, placed inside a cavity, which is pumped by a fixed wavelength laser. 

Opo是一种相干光源，内部结构包括了一个放置在谐振腔里面的非线性晶体，利用固定波长的激光器泵浦，通过光学参量放大过程在非常宽的范围内产生相干光。

The OPO technology generates light across optical frequencies within the mid-IR spectrum, which conventional lasers cannot easily access.

Opo技术可以产生直到近红外波段的光学输出，常用的激光器很难达到。

Applications

 应用

Due to their tunable wavelength coverage, optical parametric oscillators have been used across a range of test and measurement, materials characterisation and spectroscopy applications. These techniques help to determine failure analysis within the semiconductor industry and detect gas emissions from asset intensive industries.

基于opo波长可调节特性，它的应用范围包括了测量系统，材料表征以及光谱应用等。这些技术可以对半导体工艺里面的缺陷检测提供判据；同时可以对大型的工厂进行气体泄漏检测。

Within industrial sensing, OPOs can be integrated with interferometers (and other detector technology) to establish a high brightness detection system, capable of identifying and quantifying hydrocarbons in the atmosphere simultaneously. Demonstrating these capabilities, Chromacity collaborated with Heriot-Watt University to conduct research into multi-species gas analysis using FTIR spectroscopy and stand-off detection techniques.

在工业传感领域，opo可以跟干涉仪或者其他的检测技术集成，从而构建一个高亮的检测系统，同时具备了在空气中对碳氢化合物定量和定性的功能。基于这些能力，Chromacity与Heriot-Watt大学合作，结合FTIR光谱仪和平衡检测技术构建了多气体成分检测系统。

Within the molecular fingerprint region, typically wavelengths between 5 – 15 µm, more complex chemical compounds can be detected. Using a nonlinear orientation patterned gallium phosphide crystal (known as OPGaP), Chromacity’s picosecond optical parametric oscillator can be extended to generate light up to 12 µm, to detect chemical signatures (in solid or liquid state). These chemical signatures can be harmful to people and contaminate surfaces during assembly line production.

在分子指纹领域，在典型的5-15微米范围内，更多的复合化学成分可以被检测到。利用一块非线性定位模式磷化镓晶体，Chromacity的皮秒光学振荡器可以将波长拓展到12微米，这就具备了在固体和液体物质里面探测化学指征的可能，这些化学指征可能对人类有害，同时可能会在生产线里面污染材料表面。

Intellectual Property

 知识产权

Chromacity manufacture a new generation of tunable ultrashort-pulse lasers by leveraging the technical expertise and capabilities of their R&D team. Patented protected IP has captured innovation within Chromacity’s manufacturing processes, and this has been vital to the design and build of high performance and competitively priced OPOs which are more efficient, stable and simple to use when compared with substitute technologies operating at similar wavelengths.

Chromacity公司通过融资买入的方式获取了R&D团队的经验和能力，专利保护的创新使得Chromacity在生产过程中得以不断创新，这对于制造更多性能、更具价格竞争力的opo系统至关重要。

Optical Parametric Amplifiers:  

 光学参量振荡器

Bespoke design and optical component selection rival the conventional size and stability of alternative technologies, particularly Optical Parametric Amplifiers (OPAs). Chromacity’s OPO technology is driven by an integrated pump source (Chromacity’s 1 µm femtosecond laser) to form a compact and robust solution, with fibre coupled options available for maximum stability. Combined with air-cooling functionality, which negates the need for water storage and waste as a by-product, Chromacity’s ultrafast OPOs are one of the most compact available.

光纤耦合是的系统具备顶级的输出稳定性，同时具备了方便的尺寸和调节过程中的稳定性。结合空气制冷功能，避免了水储存和污染的潜在风险。

Chromacity is recognised as one of the first laser manufacturers to achieve remote installation capabilityfor ultrafast OPOs.

Chromacity是市面上可以实现远程opo系统安装能力的厂家之一。

“Remote installation worked perfectly and we had the OPO system up and running to use in our experiments in
no time at all.”
– Bristol University

Picosecond OPO
Generating light up to 12 µm
Integrated pump source
Remote installation capability
Air-cooling functionality
Pulse frequency at 100 MHz
Competitive pricing model

Equally, the OPO’s plug and play functionality is controlled by an intuitive web-browser interface to accelerate the operational readiness of the system, straight out of the box. The ease of use, which is a hallmark of Chromacity’s OPO technology, removes barriers that researchers often encounter when operating OPAs, which are often complex to set-up.

   与此同时，opo的可插拔功能可以通过页面浏览器界面进行控制，可以加速系统的操作易读性。易用性设计去除了客户在操作opa系统时候遇到的各种复杂的设置。

Quantum Cascade Lasers:

量子级联激光器 

Optical parametric oscillators provide an alternative to laser sources which span the near to mid-IR wavelength regions.

光学参量放大器为激光光源提供给了拓展波长的可能性，涵盖了从近红外到中红外的范围。

 Quantum Cascade Lasers (QCLs), for instance, are used to support research within 5 – 6 µm, however, the brightness of the technology is restrictive, and investment in multiple QCLs is necessary to match the broad wavelength tunability achieved from a single OPO.

Qcl主要应用在5-6微米范围内，这个技术的光源亮度非常有限，同时为了满足多波长的用途还需要投钱购买一组qcls，跟购置一个opo比起来非常不划算。

Supercontinuum Sources:

 超连续光源

In addition to broad tunability, OPO technology delivers higher powers when compared with alternative technologies.

除了宽的调节范围外，opo技术与其他的备选技术相比可以提供更高的能量输出能力。

 Chromacity’s OPO technology delivers more power per nm when compared with Supercontinuum sources, which peak typically around 4 mW per nm. 

与超连续光源典型的4mw/nm的峰值输出比，Chromacity的opo技术每nm的功率输出更高

Supercontinuum lasers are a fixed wavelength source which is tunable to specific wavelengths by applying a filter. Although broad wavelength coverage can be achieved, power is diminished as a result.

超连续光源的波长输出是固定的，调节波长主要靠滤光片。宽的波长范围是可以通过这种方式获取，但却带来了输出功率的降低。

北京明睿光谱科技有限公司成立于2018年12月，坐落于北林科技园，是一家专门从事海外顶尖光电产品代理的公司，成立起初代理国外顶级品牌：

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澳大利亚LIQUID——多功能一体化仪器Moku: Lab。

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