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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 8 — Apr. 11, 2011
  • pp: 7816–7826

Integrated InP-InGaAsP tunable coupled ring optical bandpass filters with zero insertion loss

Robert S. Guzzon, Erik J. Norberg, John S. Parker, Leif A. Johansson, and Larry A. Coldren  »View Author Affiliations

Optics Express, Vol. 19, Issue 8, pp. 7816-7826 (2011)

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Second and third-order monolithically integrated coupled ring bandpass filters are demonstrated in the InP-InGaAsP material system with active semiconductor optical amplifiers (SOAs) and current injection phase modulators (PMs). Such integration achieves a high level of tunability and precise generation of optical filters in the RF domain at telecom wavelengths while simultaneously compensating for device insertion loss. Passband bandwidth tunability of 3.9 GHz to 7.1 GHz and stopband extinction up to 40 dB are shown for third-order filters. Center frequency tunability over a full free spectral range (FSR) is demonstrated, allowing for the placement of a filter anywhere in the telecom C-band. A Z-transform representation of coupled resonator filters is derived and compared with experimental results. A theoretical description of filter tunability is presented.

© 2011 OSA

OCIS Codes
(230.5750) Optical devices : Resonators
(250.5300) Optoelectronics : Photonic integrated circuits
(350.2460) Other areas of optics : Filters, interference
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Integrated Optics

Original Manuscript: February 11, 2011
Revised Manuscript: March 18, 2011
Manuscript Accepted: March 30, 2011
Published: April 7, 2011

Robert S. Guzzon, Erik J. Norberg, John S. Parker, Leif A. Johansson, and Larry A. Coldren, "Integrated InP-InGaAsP tunable coupled ring optical bandpass filters with zero insertion loss," Opt. Express 19, 7816-7826 (2011)

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