Signal analyzer uses RF techniques on optical signals
-- Test & Measurement World, 4/1/2009 2:00:00 AM
The N4931 optical modulation analyzer from Agilent combines an optical receiver with a 90000 series Infiniium oscilloscope and vector-signal-analysis software. It covers 1528-nm to 1630-nm wavelengths with 34-GHz bandwidth (74 GHz optical) and analyzes 34 optical-modulation formats. In addition to time-domain analysis of optical signals, the N4931 can analyze signals in the frequency domain using fast Fourier transforms. The instrument’s primary application is testing optical transmitters that handle 40-Gbps and 100-Gbps transmissions.
To measure EVM (error-vector magnitude), the analysis software computes the error vector between corresponding symbol points in measured and reference I/Q signals. You display data as EVM, as error-vector phase, using only the I component, or using only the Q component. In addition, the N4931 can generate a symbol table and measurements such as frequency error, magnitude error, phase error, and I/Q offset.
Base price: $195,000. Agilent Technologies, www.agilent.com.
No related content found.
- 0 rated items found.
Datasheets.com Electronic Parts & Inventory Search
185 million searchable parts
- Part Number
- Description
- Inventory
- Products
- Manufacturers
View All Webcasts
