Abstract
A 24-channel variable optical attenuator array with a compact size of 15 × 10 mm2 is demonstrated using silica-based waveguides with 2.0% refractive index difference. Asymmetric Mach-Zehnder structures are well optimized to achieve low polarization-dependent loss (PDL) and wide bandwidth. In addition, the power consumption is reduced by optimizing the trench structures. Experimental results show that the power consumption is 160 mW when the attenuation changes by 10 dB. Within the operating voltage range, the PDL is less than 0.7 dB, and the device can operate in the C+L band with a wavelength-dependent loss (WDL) of less than 0.9 dB.
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.
