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Optical Complex Spectrum Analyzer

High resolution optical Spectral and Temporal intensity and phase measurement

A High Resolution Optical Spectrum Analyzer combined with a 3 THz Bandwidth Optical Modulation Analyzer in a cost-effective equipment.

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Key figures

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 Complex 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 (OSA, 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

Above 1630 nm

Specifications

The world’s highest optical bandwidth resolution Optical Spectrum Analyzer combined with an optical modulation analyzer

Temporal resolution

Optical bandwidth resolution

  • 3 THz bandwidth
  • No repetition rate upper limitation
  • Measurement time : 1 sec / 6 nm

Principle

Our series of Optical Complex Spectrum Analyzers are high resolution Optical Spectrum Analyzers with the added benefit of measuring the optical phase as a function of frequency.

An Optical Spectrum Analyzer combined with an Optical Modulation Analyzer

With the spectral power and the spectral phase information, it is possible by doing an inverse Fourrier transform to calculate and display time domain parameters just like an Optical Modulation Analyzer.

Principle

Our series of Optical Complex Spectrum Analyzers are high resolution Optical Spectrum Analyzers with the added benefit of measuring the optical phase as a function of frequency.

With the spectral power and the spectral phase information, it is possible by doing an inverse Fourrier transform to calculate and display time domain parameters just like an Optical Modulation Analyzer.

optical-complex-spectrum-analyzer-principle-v2

Use it as an ultra high performance Optical Spectrum Analyzer

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

Optical Spectrum Analyzer key features:

  • From 250 GHz to 20 MHz resolution
  • ± 3 pm wavelength accuracy
  • Close-in dynamic range > 60 dB @ ± 3pm
  • Rectangular shape resolution filters
  • 2 channels; one per polarization axis
  • Built-in tunable laser source
  • Component transmission analysis
optical-spectrum-analyzer-resolution-comparison-v2

Use it as an ultra high performance Optical Spectrum Analyzer

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

Optical Spectrum Analyzer key features:

  • From 250 GHz to 20 MHz resolution
  • ± 3 pm wavelength accuracy
  • Close-in dynamic range > 60 dB @ ± 3pm
  • Rectangular shape resolution filters
  • 2 channels; one per polarization axis
  • Built-in tunable laser source
  • Component transmission analysis

Use it as an ultra high performance Optical Modulation Analyzer

With up to 50 times better bandwidth than the best temporal Optical Modulation on the market, the integrated Optical Modulation Analyzer can measure any actual and future Symbol rate signal with a much higher precision than its competitors.

Optical Modulation Analyzer key features:

  • No Symbol rate limitation (3 THz Optical Bandwidth)
  • Capacity of measuring any modulation format without any special software requirement
  • Ultra high temporal resolution (down to 325 fs)
  • Polarization diversity
  • Phase, Chirp, Alpha parameter, intensity vs time, constellation, Phase eye diagram, intensity eye diagram, …

Use it as an ultra high performance Optical Modulation Analyzer

With up to 50 times better bandwidth than the best temporal Optical Modulation on the market, the integrated Optical Modulation Analyzer can measure any actual and future Symbol rate signal with a much higher precision than its competitors.

Optical Modulation Analyzer key features:

  • No Symbol rate limitation (3 THz Optical Bandwidth)
  • Capacity of measuring any modulation format without any special software requirement
  • Ultra high temporal resolution (down to 325 fs)
  • Polarization diversity
  • Phase, Chirp, Alpha parameter, intensity vs time, constellation, Phase eye diagram, intensity eye diagram, …
Optical Complex Spectrum Analyzer Software

Now able to do PRBS patterns analysis

Our series of Optical Complex Spectrum Analyzers offer the possibility of doing PRBS patterns analysis for a range of repetitive patterns, depending on the symbol rate of the signal under test.

No Baud rate upper limitation

The equipment has no Baud rate upper limitation and it can measure any modulation format.

Now able to do PRBS patterns analysis

APEX Technologies Optical Complex Spectrum Analyzers offer this feature for a range of repetitive patterns, depending on the symbol rate of the signal under test.

The equipment has no Baud rate upper limitation and it can measure any modulation format.

Complex measurement setup

A complex measurement needs not only the intensity but also the phase as a function of frequency. To measure the phase, the signal under test must be a repetitive signal with a pattern frequency between 70 MHz to 900 MHz. Commercially available PPG and AWG are able to generate the right pattern length to match this pattern frequency range for any signal-rate. A reference RF pattern clock repetition signal is also required.

Clock operation

Manually, the user can plug an external clock to the equipment. To simplify the setup, a new optical clock recovery function is available, it allows to do complex measurement without reference clock signal.

Complex measurement setup

A complex measurement needs not only the intensity but also the phase as a function of frequency. To measure the phase, the signal under test must be a repetitive signal with a pattern frequency between 70 MHz to 900 MHz. Commercially available PPG and AWG are able to generate the right pattern length to match this pattern frequency range for any signal-rate. A reference RF pattern clock repetition signal is also required.

Manually, the user can plug an external clock to the equipment. To simplify the setup, a new optical clock recovery function is available, it allows to do complex measurement without reference clock signal.

Tools and documentation

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OPTICAL SPECTRUM ANALYZER

New wavelengths available between 1030 nm and 1630 nm

1064 ± 20 nm, 1200 ± 50 nm, O-band, E-band, S-band, and C+L bands are now availble.
Contact us for any other specific range between 700 nm and 2µm.

Discover the optical spectrum of your signal with the world highest bandwidth resolution 5MHz/40 fm.

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