Discover the highest resolution Optical Spectrum Analyzer in the market for many different wavelength ranges between 1030 nm to 1630 nm. With a resolution up to 500 times better than the best standard grating based Optical Spectrum Analyzer on the market, these new generation Optical Spectrum Analyzers from APEX Technologies can display your signal’s real spectrum shape and not just its envelope.

Wavelength ranges available (Any custom range available upon request)

Thanks to the integration of our own homemade external cavity tunable laser source (TLS) as a local oscillator, we offer a large range of Optical Spectrum Analyzers mostly between 1030 nm to 1630 nm. We can reach ultra-high resolution in the T, O, E, S and C+L bands, thanks to our mode hop-free local oscillator technology. The TLS can be integrated inside the equipment or into an external benchtop as an option. The advantage of the latter configuration is that the TLS can be used as a local oscillator and be connected to our other equipment that are also based on interferometric principle (OCSA, OFDR).

Available wavelength ranges:

T Band: 1030 – 1075 nm
O Band: 1260 – 1360 nm
E Band: 1345 – 1450 nm
S Band: 1445 – 1520 nm
C+L Band: 1525 – 1630 nm

Custom wavelength ranges (upon request):

Below T Band: Below 1030 nm
T Band: 1075 – 1260 nm
Above C+L Band

Specifications: 

  • 5MHz; 0.04 pm Resolution
  • 87dB Dynamic range
  • Wavelength accuracy: < +/- 2 pm
  • Repeatability: < 0.5 pm
  • Sweep time: 20 nm/s

Download datasheet here.

Ultra high optical bandwidth filter resolution

With up to 500 times better resolution than the best standard grating-based Optical Spectrum Analyzer on the market, our new generation of Optical Spectrum Analyzers can display your signal’s real spectrum shape instead of just its envelope.

Best resolution available in the market: 5 MHz / 0.04 pm: 

Our Optical Spectrum Analyzer will allow you to see clearly each peak of your signal as shown here.

Use it as a wavelength meter

The 3 internal Wavelength calibrators (absolute and relative) allow the equipment to provide an excellent wavelength accuracy specification (+/- 2 pm). This high wavelength accuracy gives the possibility to use the equipment as a wavelength meter.

Calibrated for high accuracy: ±2 pm 

By combining an absolute calibration method done by a gas cell and a relative calibration method done by Fabry-Perot interferometers, we are able to reach this excellent accuracy.

Excellent dynamic range and close-in dynamic range

Our Optical Spectrum Analyzers achieve more than 83 dB of dynamic. They also have the unique advantage of having a high dynamic range close to the peak. When the best standard grating-based OSA can achieve 78 dB at +/- 1 nm, our Optical Spectrum Analyzers can achieve 80 dB at +/- 6 pm from the peak.

Ultra high (close-in) dynamic range: 80dB at ± 6 pm from the peak

The data shown here is demonstrating our high close-in dynamic range at 0.3 pm and 4.5 pm from the peak.

Perfect resolution filters for OSNR measurements

Several resolution filters between 5 MHz and 250 GHz are available. We use rectangular shape resolution filters which allow a nearly perfect integration of the signal over the selected resolution, whereas a grating-based Optical Spectrum Analyzer filter integrates inside a wide base triangular shape.

Rectangular shape resolution filters between 5 MHz and 250 GHz 

This sharp integration allows our OSA to perform a much more realistic level measurement, which is essential for an accurate OSNR measurement.

Two Optical Spectrum Analyzer channels, one per polarization axis

The input signal is split into two orthogonal polarization axes, analyzed simultaneously by two internal independent channels. Our Optical Spectrum Analyzer has the unique advantage to display the two polarization channels separately and simultaneously. 

Display two polarizations at once

Our Optical Spectrum Analyzer can also recombine the polarization axis and display a polarization independent measurement.

Detection