A Comparison of SWIFTS spectrometers from Resolution Spectra Systems with Other Products

This article covers the differences between Resolution Spectra Systems’ products and others. When compared to other laser spectrum analyzer’s the products of Resolution Spectra offer:

  • Provide a spectrum of the laser including all laser modes
  • Have a better or equivalent spectral resolution whereas certain LSAs have only a spectral resolution about 30 GHz
  • It is possible to have a much more better or a lower absolute accuracy depending on the LSA mode
  • Have generally a better sensitivity since only few nW inside the fiber is required
  • Don’t induce temporal artifacts since there is no scan as in the LSA but only a one-shot measurement
  • Measurement can be done quickly as there are no moving components
  • The ZOOM Spectra can run at 30 000 Hz whereas the measurement rate of a LSA is between less than 1Hz and few tenth Hz maximum
  • These provide an easy-to-use complete interface to trig, record and manage data
  • The solution offered is comparatively very much affordable
  • Transportation is easy without a risk of degrading calibration
  • Can be integrated as an OEM sub-system

Figure 1.

Comparison with Optical Spectra Analyzers

When compared with optical spectra analyzers (OSA) developed originally for Telecom lasers:

  • Provide a spectrum of the laser including all laser modes,
  • Do not yet address the 1350-1550nm telecom bands,
  • Have a higher spectral resolution, and OSA does not resolve all modes of multimode VCSELs or laser diodes for instance,
  • Have a much higher absolute precision, which gives them a multi-wavelength meter function
  • Does not induce temporal artifacts since there is no scan as in the OSA but only a one-shot measurement
  • Measurement can be done rapidly as there is no moving part. The ZOOM Spectra can run at 30, 000 Hz whereas the measurement rate of an OSA is about few Hz maximum
  • Offers a convenient and complete interface to trig, record and manage your data
  • Are much more affordable
  • Are very easy to transport without any risk to degrade the calibration
  • Can be integrated as an OEM sub-system

Comparison with other Spectrometers

In comparison with other spectrometers the products offered by Resolution Spectra Systems are:

  • Are extremely simpler and more affordable in the case of High-end spectrometers such as Echelle spectrometers
  • Have a much better spectral resolution, which is really required to resolve laser modes
  • Have a much higher absolute accuracy which gives them a multi-wavelength meter function
  • Can perform measurement rapidly to 30 000 Hz

Comparison with Wavelength Meters

In comparison with wavelength meters, the products of Resolution Spectra offer:

  • They provide the wavelength of a laser mode but also of all the laser modes, even if too many with excellent accuracy
  • Have a lower absolute accuracy in the case of High-end wavelength meter but it is sufficient for many applications
  • Provide a spectrum and can perform rapid measurements
  • Provide an easy-to-use complete interface to trig, record and manage your data,
  • Are comparatively cost-effective
  • Are very easy to transport without any risk to degrade the calibration,
  • Can be integrated as an OEM sub-system

Conclusion

In view of all this, Resolution Spectra Systems products are required:

  • If a multimode laser needs to be finely characterized, that is to say discriminate all modes and measure their absolute wavelengths
  • If there is in order to perform a lot of measurements to characterize your laser in a reasonable time (spectra and power mapping)
  • If there is a need for high-speed during the wavelength tuning of the laser
  • If the tunable laser needs to be monitored and one must exactly understand what happens around mode hopping
  • If there is no need of an extreme dynamic and have not the budget for an OSA
  • If there is a need to transport frequently your system to one point to another and ensure that there is no change in calibration
  • If a LSA or wavelength meter needs to be integrated in the laser

About Resolution Spectra Systems

RESOLUTION Spectra Systems was set up in 2011 to develop an offer based on SWIFTS technology. Its founders are senior engineers, business managers and research scientists from the Joseph Fourier University of Grenoble in France. The company is also based in Grenoble, one of Europe’s leading high-technology centers.

RESOLUTION Spectra Systems is looking to revolutionize the use of spectrometers in the future. A combination of high performance, simplicity and compactness will allow SWIFTS-based spectrometers to be employed in configurations that were impossible for previous generations of spectrometer, opening up the use of high-performance spectroscopy to mainstream applications and enabling its integration with new or existing technologies.

The core benefits of SWIFTS, its compactness, portability and potential for integration, will provide real answers to current market requirements. This is particularly true for applications that require spectral discrimination with respect to molecular emission and absorption, including process control, laser spectroscopy for the analysis of materials, security and medical applications.

Our supply chain is based on processes developed in-house, but also on a smart scheme that takes advantage of the unique convergence of state-of-the-art technologies and facilities located in the Grenoble Cluster.

RESOLUTION Spectra Systems is developing several families of off-the-shelf spectrometers and is focusing its R&D efforts on tailoring solutions to applications that require a high level of performance, compactness, portability or simplicity.

RESOLUTION Spectra Systems is not only a powerful technology developer, it is also resolutely focused on serving customers and responding to their needs.

This information has been sourced, reviewed and adapted from materials provided by Resolution Spectra.

For more information on this source, please visit Resolution Spectra.

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