TECH FOCUS: TEST & MEASUREMENT Sponsored by


OLT port shipments increased 222 per cent Y/Y, to 2019 as more operators continue their shiſt to 10Gb/s FTTH networks. Regardless of which PON market report you read, however, the majority of analysts agree this market segment is poised for significant growth over the next three-to-five years, most predicting investments exceeding $8bn by 2025. Due in part to local government broadband


initiatives, its lower cost and adequate bandwidth, GPON looks set to remain the dominant and most deployed service, especially as 5G networks will rely on the existing fibre distribution infrastructure to reach into neighborhoods. Next-generation 10G-EPON, XG(S)-PON, and NG-PON2 technologies on the other hand are expected to drive the growth since small business and mobile backhaul services are seen as a far more lucrative source of revenue for operators. Test and measurement vendors will need to ensure that they offer the right tools to meet any challenges associated with next-generation PON networks.


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Vendors that offer fibre optic test and measurement products include OptoTest, with its recently launched multichannel OP940 insertion loss (IL) and return loss (RL) meter designed for MPO/MTP cable testing. Te meter is designed to help reduce setup time, cost, risk, and footprint. Te FlexScan FS300-325 Quad OTDR from


AFL is designed for contract installers and network operators deploying and maintaining both single-mode and multimode networks, including FTTx PON. Te unit is rugged, with pocket-sized form factor and easy two-buton test set up. It has user-friendly color-coded icons for pass/fail analysis and


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user-configurable print-to-PDF, as well as fast power-on and a long batery life. Bristol Instruments recently added a


new optical spectrum analyser for efficient testing of optical transceivers used in WDM applications. Te new model – 750 – quickly measures and reports side-mode suppression ratio (SMSR). It uses proven Michelson interferometer-based technology with fast Fourier transform analysis to generate a laser’s spectrum over the entire wavelength range of 1,260 to 1,680nm. Anritsu, meanwhile, has introduced IQ


capture and IQ streaming options for its Field Master Pro MS2090A, real time spectrum analyser. With 110MHz bandwidth and


200MSps sample rate, the analyser can capture and stream twice as much data as any other hand-held model. Additionally, having IQ capture and streaming in RTSA mode allows for the capture and/or streaming of data without pausing the sweep, so users can monitor the spectrum visually while the capture is being conducted. Te result is that more information is acquired on spectrum surrounding bands of interest. Signal data can be captured and segmented into I and Q samples with the options. Additionally, unknown signals in spectrum where secure communications are required can be identified and evaluated to determine if they are harmless or nefarious. n


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VeEX: FEATURED PRODUCT


10G-EPON is enjoying a head-start when it comes to global adoption. Particularly so in Asia, where 1G-EPON and GPON are already widely deployed. Deployment of XGS-PON and NG-PON2


technologies in most geographies still lags as service providers wrap up field trials and shortlist vendors. Despite this delay, XGS-PON deployment is expected to grow rapidly as operators desperately need a 10G symmetric service to compete with cable DOCSIS 3.1 networks. Te new VeEX® FX81 optical power meter


overcomes the test challenges associated with deploying next generation 10G PON overlay networks. Te unit performs simultaneous, filtered power measurement of all upstream and downstream wavelengths, guaranteeing the PON service is installed correctly. Te unit’s further ability to automatically


detect and apply industry or user defined level thresholds, simplifies installation and reduces service activation costs significantly.


Test results can be transferred to a PC or mobile device for record keeping and test reporting – proper documentation proves services were commissioned correctly so service providers can turn up customers with greater confidence.


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