APEX Technologies present a High Resolution Optical Spectrum Analyzer combined with a 3 THz Bandwidth Optical Modulation Analyzer in a cost-effective package.

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

Specifications

• 375fs Temporal resolution
• 5MHz Optical bandwidth resolution
• 3 THz bandwidth
• No repetition rate upper limitation
• Measurement time : 1 sec / 6 nm

Download datasheet here.

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.

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, …

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.

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.