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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 2 — Jan. 27, 2014
  • pp: 2141–2149

Photoconductive effect on p-i-p micro-heaters integrated in silicon microring resonators

Linjie Zhou, Haike Zhu, Heng Zhang, and Jianping Chen  »View Author Affiliations

Optics Express, Vol. 22, Issue 2, pp. 2141-2149 (2014)

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We study the photoconductive effect of a p-i-p micro-heater integrated in a microring resonator. Due to the surface state absorption (SSA) and two photon absorption (TPA) of optical wave around 1550 nm, free carriers are generated in the silicon waveguide, leading to the modulation of silicon conductivity and thus the current flowing through it. The current-voltage (I-V) response of the p-i-p diode is dependent on the bias voltage and can be divided into ohmic-law regime and space-charge-limited regime. The resonance peak current is more sensitive to optical power in the ohmic-law regime. Such a phenomenon can also be utilized to monitor the optical power in the waveguide.

© 2014 Optical Society of America

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(160.6840) Materials : Thermo-optical materials
(230.5750) Optical devices : Resonators
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Integrated Optics

Original Manuscript: November 27, 2013
Revised Manuscript: January 12, 2014
Manuscript Accepted: January 16, 2014
Published: January 24, 2014

Linjie Zhou, Haike Zhu, Heng Zhang, and Jianping Chen, "Photoconductive effect on p-i-p micro-heaters integrated in silicon microring resonators," Opt. Express 22, 2141-2149 (2014)

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