Issues Associated With Polarization Independence in Silicon Photonics
| Autor: | Vittorio M. N. Passaro, Dani Hak, W. R. Headley, Frederic Y. Gardes, Goran Z. Mashanovich, Ansheng Liu, Mario J. Paniccia, Ching Eng Png, Seong Phun Chan, Graham T. Reed, N.G. Emerson, Branislav Timotijevic, P. Waugh |
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| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Silicon-on-insulator (SOI)
Materials science Silicon Rib waveguides chemistry.chemical_element Polarization independence Grating Resonator Optics Grating couplers Wafer Electrical and Electronic Engineering Ring resonators Silicon photonics business.industry Optical modulators Bragg gratings Polarization (waves) Atomic and Molecular Physics and Optics Ion implantation Optical modulator chemistry Optoelectronics Single-mode condition business |
| Popis: | 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 nm, 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 |
| Databáze: | OpenAIRE |
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