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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 13 — Jun. 21, 2010
  • pp: 13805–13812

Silicon photonic dynamic optical channel leveler with external feedback loop

J. K. Doylend, P. E. Jessop, and A. P. Knights  »View Author Affiliations

Optics Express, Vol. 18, Issue 13, pp. 13805-13812 (2010)

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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.

© 2010 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(130.3120) Integrated optics : Integrated optics devices
(250.3140) Optoelectronics : Integrated optoelectronic circuits
(250.5300) Optoelectronics : Photonic integrated circuits
(130.4815) Integrated optics : Optical switching devices
(250.0040) Optoelectronics : Detectors

ToC Category:
Integrated Optics

Original Manuscript: April 16, 2010
Revised Manuscript: May 31, 2010
Manuscript Accepted: June 2, 2010
Published: June 11, 2010

J. K. Doylend, P. E. Jessop, and A. P. Knights, "Silicon photonic dynamic optical channel leveler with external feedback loop," Opt. Express 18, 13805-13812 (2010)

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