Precision optical spectrum analyzer

20 September 2021

Yokogawa has launched a new optical spectrum analyzer (OSA) designed to offer the extreme high precision demanded by researchers developing the next generation of optical communication components.



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As data hungry applications push the performance requirements of Dense wavelength division multiplexing (DWDM) systems, telecommunication channels become ever more closely spaced, making it more difficult to separate the individual channels in the wavelength division multiplexing (WDM) analysis on an OSA.

The Yokogawa AQ6380 OSA offers optical performance to allow engineers and scientists to develop and improve the speed, bandwidth and quality of the next generation of communication networks, while its ease of use ensures it can be operated quickly and efficiently. 

The AQ6380 has optical wavelength resolution down to 5 picometers (pm), allowing optical signals in close proximity to be clearly separated and accurately measured. With the AQ6380, waveforms that were previously not even visible in a typical OSA, such as modulation side peaks in the laser spectrum, can now be accurately visualised. 

It also offers a wavelength range of 1200 to 1650nm, allowing one unit to meet diverse wavelength measurement needs. With the ability to alter the wavelength resolution from 5 pm to 2nm, a wide range of applications can be supported, from narrowband peak/notch measurements to wideband spectral measurements.

To maintain consistent accuracy, the AQ6380 features on board calibration based on a built-in light source. Wavelength calibration is automatically performed at set intervals by switching the optical path with an internal optical switch.

Fast measurement speed is another major benefit, with the AQ6380 capturing data points in only 0.23 seconds compared to 5.4 seconds for the existing model (AQ6370D) in certain conditions.


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