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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 26 — Dec. 10, 2012
  • pp: B279–B287

Ultrafast all-optical switch with cross-phase modulation by area-selective ion implantation in InGaAs/AlAsSb coupled double quantum wells

Jijun Feng, Ryoichi Akimoto, Shin-ichiro Gozu, Teruo Mozume, Toshifumi Hasama, and Hiroshi Ishikawa  »View Author Affiliations


Optics Express, Vol. 20, Issue 26, pp. B279-B287 (2012)
http://dx.doi.org/10.1364/OE.20.00B279


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Abstract

We have developed a compact gate switch with monolithic integration of all-optical cross-phase modulation (XPM) in a Mach-Zehnder interferometer (MZI). XPM is caused by intersubband transition (ISBT) in InGaAs/AlAsSb coupled double quantum wells (CDQWs) by area-selective silicon ion implantation and rapid thermal annealing (RTA). While injecting pump light through a transverse electric/transverse magnetic (TE/TM) beam combiner, XPM is induced in one MZI arm and gating operation can be realized. The RTA condition is optimized, and the sample is annealed at 780 °C for 8 s with an implantation dose of 5 × 1013 cm–2. Dependence of XPM efficiency on the length of the implanted mesa is also analyzed, and there exists an optimum implantation length to fulfill both high efficiency of ISBT modulation and low loss of the probe and pump signals.

© 2012 OSA

OCIS Codes
(190.5970) Nonlinear optics : Semiconductor nonlinear optics including MQW
(130.4815) Integrated optics : Optical switching devices

ToC Category:
Waveguide and Optoelectronic Devices

History
Original Manuscript: October 1, 2012
Revised Manuscript: October 27, 2012
Manuscript Accepted: October 27, 2012
Published: November 29, 2012

Virtual Issues
European Conference on Optical Communication 2012 (2012) Optics Express

Citation
Jijun Feng, Ryoichi Akimoto, Shin-ichiro Gozu, Teruo Mozume, Toshifumi Hasama, and Hiroshi Ishikawa, "Ultrafast all-optical switch with cross-phase modulation by area-selective ion implantation in InGaAs/AlAsSb coupled double quantum wells," Opt. Express 20, B279-B287 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-26-B279


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References

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