Abstract
Two micro electro mechanical systems (MEMS) - based electrical variable optical attenuator (eVOA) designs are discussed and compared with respect to polarization dependent loss (PDL) and wavelength dependent loss (WDL) characteristics. The first design is based on a shutter, whereas the second device works in reflection, where the movement of a mirror creates misalignment losses by steering the beam away from the core of the output fiber. The reflective-based design shows better PDL values typically below 0.1 dB at 10 dB attenuation. PDL values of the shutter-based design are 3.4 times higher, i.e. 0.5 dB around 10 dB. On the other hand the shutter design has less wavelength dependent loss.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
