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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 14 — Jul. 4, 2011
  • pp: 13245–13256

Demonstration of a fast-reconfigurable silicon CMOS optical lattice filter

Salah Ibrahim, Nicolas K. Fontaine, Stevan S. Djordjevic, Binbin Guan, Tiehui Su, Stanley Cheung, Ryan P. Scott, Andrew T. Pomerene, Liberty L. Seaford, Craig M. Hill, Steve Danziger, Zhi Ding, K. Okamoto, and S. J. B. Yoo  »View Author Affiliations

Optics Express, Vol. 19, Issue 14, pp. 13245-13256 (2011)

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We demonstrate a fully-reconfigurable fourth-order optical lattice filter built by cascading identical unit cells consisting of a Mach-Zehnder interferometer (MZI) and a ring resonator. The filter is fabricated using a commercial silicon complementary metal oxide semiconductor (CMOS) process and reconfigured by current injection into p-i-n diodes with a reconfiguration time of less than 10 ns. The experimental results show full control over the single unit cell pole and zero, switching the unit cell transfer function between a notch filter and a bandpass filter, narrowing the notch width down to 400 MHz, and tuning the center wavelength over the full free spectral range (FSR) of 10 GHz. Theoretical and experimental results show tuning dynamics and associated optical losses in the reconfigurable filters. The full-control of each of the four cascaded single unit cells resulted in demonstrations of a number of fourth-order transfer functions. The multimedia experimental data show live tuning and reconfiguration of optical lattice filters.

© 2011 OSA

OCIS Codes
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(070.5753) Fourier optics and signal processing : Resonators
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: April 22, 2011
Revised Manuscript: June 9, 2011
Manuscript Accepted: June 15, 2011
Published: June 23, 2011

Salah Ibrahim, Nicolas K. Fontaine, Stevan S. Djordjevic, Binbin Guan, Tiehui Su, Stanley Cheung, Ryan P. Scott, Andrew T. Pomerene, Liberty L. Seaford, Craig M. Hill, Steve Danziger, Zhi Ding, K. Okamoto, and S. J. B. Yoo, "Demonstration of a fast-reconfigurable silicon CMOS optical lattice filter," Opt. Express 19, 13245-13256 (2011)

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