z-logo
open-access-imgOpen Access
Silicon photonic dynamic optical channel leveler with external feedback loop
Author(s) -
J. K. Doylend,
P. E. Jessop,
Andrew P. Knights
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.013805
Subject(s) - photodiode , dynamic range , optical attenuator , optical power , optics , materials science , silicon photonics , photonics , optoelectronics , photonic integrated circuit , channel (broadcasting) , attenuator (electronics) , physics , optical fiber , computer science , multi mode optical fiber , telecommunications , attenuation , laser
We demonstrate a dynamic optical channel leveler composed of a variable optical attenuator (VOA) integrated monolithically with a defect-mediated photodiode in a silicon photonic waveguide device. An external feedback loop mimics an analog circuit such that the photodiode directly controls the VOA to provide blind channel leveling within +/-1 dB across a 7-10 dB dynamic range for wavelengths from 1530 nm to 1570 nm. The device consumes approximately 50 mW electrical power and occupies a 6 mm x 0.1 mm footprint per channel. Dynamic leveling is accomplished without tapping optical power from the output path to the photodiode and thus the loss penalty is minimized.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here