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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 30, Iss. 7 — Apr. 1, 2012
  • pp: 990–996

Finite Impulse Response Filter Using 4-Port MMI Couplers for Residual Dispersion Compensation

Abdul Rahim, Stefan Schwarz, Juergen Bruns, Karsten Voigt, Dimitar Ivanov Kroushkov, Mohammed Tareq Arnous, Christian G. Schäffer, and Klaus Petermann

Journal of Lightwave Technology, Vol. 30, Issue 7, pp. 990-996 (2012)


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Abstract

Many implementations of optical finite impulse response filter for signal processing applications have been realized in integrated photonics using 2 × 2 couplers. We have implemented a filter using 4 × 4 couplers. Such a filter is useful for the compensation of residual dispersion in a fiber optic transmission system. Silicon photonics realization using 4-port multimode interference couplers in 4 $\mu$m silicon-on-insulator technology has been carried out for a free spectral range of 100 GHz. The transmission and group delay for the fabricated device have been measured and a good agreement between the simulation and experimental results has been achieved. The proposed filter can compensate up to ±176 ps/nm of fiber chromatic dispersion.

© 2012 IEEE

Citation
Abdul Rahim, Stefan Schwarz, Juergen Bruns, Karsten Voigt, Dimitar Ivanov Kroushkov, Mohammed Tareq Arnous, Christian G. Schäffer, and Klaus Petermann, "Finite Impulse Response Filter Using 4-Port MMI Couplers for Residual Dispersion Compensation," J. Lightwave Technol. 30, 990-996 (2012)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-30-7-990

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