作為加拿大 EXFO公司的一家子公司的Berleigh公司，是一家世界著名的波長計生產(chǎn)廠家。從1972年成立至今，一直致力于波長的精確測量。其多波長計WA－7600精度達(dá)0.2ppm，是多波長計的計量標(biāo)準(zhǔn)，同業(yè)達(dá)一個量級。WA－7600、WA－7100廣泛應(yīng)用于大學(xué)、研究所、光纖通信的研發(fā)、生產(chǎn)企業(yè)以及DWDM的系統(tǒng)測試。

 

 

 

1.波長的測量：光波長及譜寬的精確測量，ITU-T grid 中心波長的測量
2. 功率的測量：峰值功率、積分功率的測量
3. 光信噪比測量
4. DWDM系統(tǒng)及器件的測試，可以同時分析測量多達(dá)256個通路的通道特性
5. 波長、功率漂移測量以及實時監(jiān)控

 

 

WA-7600 and WA-7100 Optical Channel Analyzers employ proven scanning Michelson interferometer-based Wavemeter technology to determine the absolute wavelength of an optical signal under test by comparing its interference fringe pattern with that of a built-in HeNe laser wavelength standard. Unlike other wavelength meters, all factors that can affect wavelength measurement are accounted for, ensuring the highest possible accuracy. The absolute wavelength specification has a confidence level of 3 σ, meaning 99.6 % of measurements fall within specification limits. To ensure accuracy, all Wavemeter systems are traceable to recognized standards.

Simultaneous Wavelength and Power Measurement
Combining proven scanning Michelson interferometer-based technology with advanced digital processing results in the ability to measure and differentiate the absolute wavelengths of up to 256 discrete optical signals. The accuracy of these measurements is ± 0.3 pm. What’s more, the WA-7600 can simultaneously measure the individual powers of the optical signals. In addition to the WA-7600, EXFO also offers the WA-7100 Wavemeter Multiline Optical Channel Analyzer. Identical to the WA-7600, it offers an absolute wavelength uncertainty of ± 1.5 pm, providing a lower-cost alternative.

High-Resolution Optical Spectral Analysis
Unlike other multiwavelength meters, the WA-7600 and WA-7100 Wavemeter provide the full optical spectrum on a clear, easy-to-read display, for the most precise DWDM channel analysis. Spectral resolution is as high as 30 pm, resulting in a narrow, sharp-edged spectral response. Discrimination between closely spaced DWDM channels is easily achieved for current 100 GHz and 50 GHz channel spacing and future 25 GHz channel spacing.

Automatic Calculation Increases Productivity
The WA-7600 and WA-7100 automatically process measurement data, providing critical DWDM system performance information. In addition to resolving the individual optical carriers and accurately confirming their wavelengths and powers, the WA-7600 and WA-7100 calculate parameters such as channel spacing and OSNR.