Ando debuts high power sensor and an optical sampling oscilloscope for measuring high performance systems
August 20, 2002 --Ando Electric Co., Ltd. is introducing a high-power sensor, the Ando AQ2744, and a high performance optical sampling oscilloscope, the AQ7750.
As the capacity of DWDM communication systems increases, demand grows for higher power optical sensors of more than +30 dBm that can cope with high-power optical amplifiers. The high power sensor, AQ2744, provides maximum optical input power of +40 dBm (10 W), and accuracy within ±2.5% under reference conditions. The AQ2744 is a high-performance, high-power sensor with built-in integrating sphere in its input port. Applications include power measurement of high-power light sources, such as Raman amplifiers and pumping source and total power measurement for WDM systems.
Ando developed the AQ2744 for the AQ2140 Optical Multimeter, as part of the company's line of high-power sensors. It was also designed to work in conjunction with the AQ2730 OPM unit and the AQ-9335 Connector Adapter. The AQ2744 started shipping in July.
The company is also debuting a compact, high performance optical sampling oscilloscope, the AQ7750, for clear and accurate measurement of ultra high-speed transmission waveforms exceeding 160 Gbits/sec. Ultra high-speed optical communications research and development is focusing on transmission speeds exceeding 40 Gbits/sec. Optical eye-pattern measurement and bit-error-rate measurement have become indispensable for evaluating transmission quality. Today, eye-pattern evaluations are performed using systems combining high-speed photo diode and high-speed digital oscilloscope. Such systems, however, make it difficult to obtain a measurement bandwidth of over 50 GHz, thus waveform measurement cannot be accurate for optical signals of over 40 Gbits/sec.
The AQ7750 optical sampling oscilloscope offers a measurement bandwidth of over 500 GHz and transmission speed of 40 Gbits/sec. The unit also features versatile analysis functions, such as pulse waveform analysis, that evaluate pulse width, rise and fall times, and eye waveform analysis that evaluates the eye opening factor of eye waveforms, signal-to-noise ratio and more. In addition, a trigger gating function enables waveform observation in circulating loop experiments for simulations of long distance transmission.
For more information about either of these products, visit Ando's Web site at http://www.ando.co.jp.