Long life, low noise
low electromagnetic interference
Small measurement error
single-ended optical device PER parameter test
dual output PER parameter test device
（Y waveguide, coupler, beam splitter, etc）
Performance parameter
| parameter | Unit | index |
| Number of channels | Single/dual channel | |
| Measure extinction ratio | dB | ＞40 |
| Measuring wavelength range | nm | 600~1630 |
| Measurement error | dB | ≤±0.2 (PER:0~30dB, Pi≥10uW) |
| dB | ≤±0.3 (PER:31~35dB, Pin≥10uW) | |
| dB | ≤±0.5 (PER:36~40dB, Pin≥100uW) | |
| Input power range | uW | 0.01~2000 |
| Effective resolution | dB | 0.03 |
| Data update rate | Times/channels/second | 1~2 |
| Operating temperature | 5～40℃ |
| operating humidity | R.H. 15～80% |
| storage temperature | -15～45℃ |
| KG | PERM | X | Y |
| Extinction ratio tester | A---600-1100nmB---1280-1630nm
|
1---Single channel 2---Dual channel |
Rofea Optoelectronics offers a wide range of electro-optic products including modulators, photodetectors, lasers, amplifiers and more. Our products cover wavelengths from 780 nm to 2000 nm with electro-optical bandwidths up to 40 GHz. They are suitable for a variety of applications from analog RF links to high-speed communications. In addition, we also provide custom modulators, including 1*4 array phase modulators, ultra-low Vpi, and ultra-high extinction ratio modulators, which are popular with universities and research institutes. We pride ourselves on our quality service, high efficiency and wide range of specifications, making us a strong player in the industry. In 2016, it was certified as a high-tech enterprise in Beijing and has a number of patent certificates. Our products have stable performance and are well received by users at home and abroad. At Rofea Optoelectronics, we are committed to providing excellent service and creating innovative products that meet our customers' needs. As we enter the era of vigorous development of optoelectronic technology, we look forward to cooperating with you to create brilliance together!