The mVOA‑C1 Variable Optical Attenuators provide metrology‑grade performance with ultra‑low insertion loss under 0.9 dB and excellent spectral uniformity to minimize loss‑budget impact. They offer the fastest transition speed and settling time in their class, reducing overall test time, and can include an optional built‑in power monitor for closed‑loop power control. Versions supporting higher power levels handle up to 2 W for single‑mode fiber and 500 mW for multimode. These attenuators deliver high accuracy and repeatability, low back‑reflection, and flat spectral response for reduced wavelength‑dependent uncertainty in CWDM and DWDM applications, with optional wavelength calibration available.

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