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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 27 — Dec. 17, 2012
  • pp: 28808–28818

Electrical pump & probe and injected carrier losses quantification in Er doped Si slot waveguides

J. M. Ramírez, Y. Berencén, F. Ferrarese Lupi, D. Navarro-Urrios, A. Anopchenko, A. Tengattini, N. Prtljaga, L. Pavesi, P. Rivallin, J. M. Fedeli, and B. Garrido  »View Author Affiliations


Optics Express, Vol. 20, Issue 27, pp. 28808-28818 (2012)
http://dx.doi.org/10.1364/OE.20.028808


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Abstract

Electrically driven Er3+ doped Si slot waveguides emitting at 1530 nm are demonstrated. Two different Er3+ doped active layers were fabricated in the slot region: a pure SiO2 and a Si-rich oxide. Pulsed polarization driving of the waveguides was used to characterize the time response of the electroluminescence (EL) and of the signal probe transmission in 1 mm long waveguides. Injected carrier absorption losses modulate the EL signal and, since the carrier lifetime is much smaller than that of Er3+ ions, a sharp EL peak was observed when the polarization was switched off. A time-resolved electrical pump & probe measurement in combination with lock-in amplifier techniques allowed to quantify the injected carrier absorption losses. We found an extinction ratio of 6 dB, passive propagation losses of about 4 dB/mm, and a spectral bandwidth > 25 nm at an effective d.c. power consumption of 120 μW. All these performances suggest the usage of these devices as electro-optical modulators.

© 2012 OSA

OCIS Codes
(130.0250) Integrated optics : Optoelectronics
(160.5690) Materials : Rare-earth-doped materials

ToC Category:
Optoelectronics

History
Original Manuscript: September 11, 2012
Revised Manuscript: October 30, 2012
Manuscript Accepted: November 1, 2012
Published: December 12, 2012

Citation
J. M. Ramírez, Y. Berencén, F. Ferrarese Lupi, D. Navarro-Urrios, A. Anopchenko, A. Tengattini, N. Prtljaga, L. Pavesi, P. Rivallin, J. M. Fedeli, and B. Garrido, "Electrical pump & probe and injected carrier losses quantification in Er doped Si slot waveguides," Opt. Express 20, 28808-28818 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-27-28808


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