Defect mediated detection of wavelengths around 1550 nm in a ring resonant structure

A. P. Knights; J. K. Doylend; D. F. Logan; J. J. Ackert; P. E. Jessop; P. Velha; M. Sorel; R. M. De La Rue

doi:10.1117/12.874018

17 January 2011 Defect mediated detection of wavelengths around 1550 nm in a ring resonant structure

A. P. Knights, J. K. Doylend, D. F. Logan, J. J. Ackert, P. E. Jessop, P. Velha, M. Sorel, R. M. De La Rue

Proceedings Volume 7943, Silicon Photonics VI; 794308 (2011) https://doi.org/10.1117/12.874018
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

In this paper we outline recent results which combine defect mediated Photo-Detectors (PDs) in a Ring Resonator (RR) structure. By exploiting the multiple-pass of the optical signal through the detector, we are able to significantly decrease the size of the detector structure while maintaining good responsivity (typically 0.1 A/W). In such a geometry the detector bandwidth is not capacitance limited, while the leakage current is reduced toward 1 nA. We also show that these PDs may be used in the drop port of a RR to monitor the propagating signal. These devices have applicability in multiplexing and potential for integration with high speed modulation functionality.

Citation Download Citation

A. P. Knights, J. K. Doylend, D. F. Logan, J. J. Ackert, P. E. Jessop, P. Velha, M. Sorel, and R. M. De La Rue "Defect mediated detection of wavelengths around 1550 nm in a ring resonant structure", Proc. SPIE 7943, Silicon Photonics VI, 794308 (17 January 2011); https://doi.org/10.1117/12.874018

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