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Issues associated with polarization independence in silicon photonics

Reed, GT, Mashanovich, GZ, Headley, WR, Timotijevic, B, Gardes, FY, Chan, SP, Waugh, P, Emerson, NG, Png, CE, Paniccia, MJ, Liu, A, Hak, D and Passaro, VMN (2006) Issues associated with polarization independence in silicon photonics IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 12 (6). 1335 - 1344. ISSN 1077-260X

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Interest in silicon photonics is experiencing a dramatic increase due to emerging applications areas and several high profile successes in device and technology development. Despite early work dating back to the mid-1980s, dramatic progress has been made only in the recent years. While many approaches to research have been developed, the striking difference between the work of the early to mid-1990s, and more recent work, is that the latter has been associated with a trend to reduce the cross sectional dimensions of the waveguides that form the devices. The question arises therefore, as to whether one should move to very small strip waveguides (silicon wires) of the order of 250 nm in height and a few hundred nanometres in width for improved device performance but with little hope of polarization independence, or to utilize slightly larger rib waveguides that offer more opportunity to control the polarization dependence of the devices. In this paper, we discuss the devices suitable for one approach or the other, and present the designs associated both with strip and rib waveguides. In particular, we present the designs of polarization-independent ring resonators with free spectral ranges up to 12 run, we propose modulators for bandwidths in the tens of gigahertz regime, and present grating-based couplers for rib and strip waveguides, and/or for wafer scale testing, as well as a novel means of developing Bragg gratings via ion implantation.

Item Type: Article
Uncontrolled Keywords: Science & Technology, Technology, Physical Sciences, Engineering, Electrical & Electronic, Optics, Physics, Applied, Engineering, Physics, Bragg gratings, grating couplers, optical modulators, polarization independence, rib waveguides, ring resonators, silicon-on-insulator (SOI), single-mode condition, RIB WAVE-GUIDES, SINGLE-MODE CONDITION, OPTICAL-PHASE MODULATOR, ON-INSULATOR SOI, GRATING COUPLERS, SIMOX MATERIAL, LARGE CROSS, SECTION, SI
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Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Photonics
Depositing User: Mr Adam Field
Date Deposited: 18 Nov 2011 13:41
Last Modified: 23 Sep 2013 18:52

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