Optical variable attenuator
The ova-630 is a linear-sliding neutral-density filter-type variable optical attenuator. The unit is stepper motor-controlled, has a height of 8 mm, and can be mounted on a printed circuit board for system integration. It is suitable for optical communication and measurement applications, including wdm. According to the manufacturer, the attenuator has high resolution, low insertion loss, and good polarization dispersion-loss characteristics (<0.1 dB over the entire tuning range). The device has wavelength dependence of ٞ.3 dB p-p (at 10-dB attenuation, 1545 to 1565 nm), while a special version of the attenuator has a wavelength dependence of ٞ.2 dB p-p (at 10-dB attenuation, 1535 to 1565 nm).
Santec Corp.
Komaki, Aichi, Japan