What it does
A VE (Visual Enhanced) InGaAs optical detector offers improved performance across visible to infrared wavelengths. A unique advantage only on Kingfisher Optical Power Meters.
- It can measure light at visible, near infrared and infrared wavelengths.
- For wavelengths used in single mode fiber applications (1270 -1650 nm), it has similar characteristics to a typical InGaAs detector.
- For wavelengths used in multimode fiber applications (830 - 940 nm), the response is much more wavelength-stable. For a typical 850 ±30 nm wavelength window, wavelength related test uncertainty is 3x better, reduced from 1.2 dB (typical InGaAs) to 0.3 dB (VE), similar to a Silicon detector.
- Can measure red laser VFL power (635 - 670 nm), and SWDM applications (850 - 940 nm).
This graph shows real detector responsivity. The blue line shows VE detector performance:
User benefit
- Finally, a detector that offers optimum performance for both single mode and multimode fiber applications.
- Absolute power accuracy for 850 nm applications can be important, since the transceiver operational loss budget is small, and may be as small as 1.2 dB.
