silicon photonics

silicon photonics - Silicon Microphotonics : A New...

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Silicon Microphotonics : A New Technology for Next Generation A. B. Nandgaonkar S. B. Deosarkar ) Pragnesh Shah* Department of Electronics & Telecommunication Engineering, Dr. B.A.Technological University, Lonere – Raigad. [M.S.] INDIA, e-mail: abnandgaonkar@yahoo.com , tel.: +91 2140 275328, fax: +91 2140 275040. ) Department of Electronics & Telecommunication Engineering, Dr. B.A.Technological University, Lonere – Raigad. [M.S.] INDIA, e-mail: sbdeosarkar@yahoo.com , tel.: +91 2140 275121, fax: +91 2140 275040. * Department of Electronics & Telecommunication Engineering, M. E. S. Pillai’s Institute of I.T., Engineering, Media studies and Research, Navi Mumbai, INDIA, email : shahpragnesh_n@yahoo.com , tel. : +91 22 2456100, fax: +91 022 27483208 Abstract 0 Silicon Micro photonics includes photonics and silicon microelectronics components, which is rapidly evolving in various optical systems. It employs at least two different materials with a large differential index of refraction to squeeze the light down to a small size. We have shown that by ultra- dense coupling of Photonic Crystal (PhC) nanocavity lasers, the differential quantum efficiencies can be improved dramatically with large spontaneous emission coupling factor ȕ , without sacrificing the low lasing thresholds of single Ph C nanocavity lasers. This could not have been achieved by coupling lasers with small ȕ . The status of silicon microphotonics and the recent advances that cause people to be optimistic to the realization of an active silicon light source has been also discussed. As soon as this objective gets realized, all the major building blocks for monolithic silicon microphotonics will become available. The final vision is to have Silicon microphotonics participating in every global application of the photonics industry. We indeed propose silicon as the unifying material where the next generation of photonics devices will be realized. In this paper, the behavior of nanocavity array laser and Raman Silicon laser is discussed. Finally, we studied the laser behavior theoretically and shown that the benefits obtained from the coupling of cavities are due to the strong cavity effects such as the enhanced spontaneous emission rate. 1. INTRODUCTION The presence of a single material, silicon, which is widely available, can be purified to an unprecedented level and also easy to handle and to manufacture. It also offers very good Erma land mechanical properties which render the processing of devices based on it easy. The presence of a single dominating processing technology, CMOS, made it possible to integrate more and more devices, yielding a significant reduction in cost per bit. [1][2] Silicon is the electronic material per excellence . Integration and economy of scale are the two keys
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This note was uploaded on 11/07/2009 for the course ELEC ece212 taught by Professor None during the Spring '09 term at York University.

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silicon photonics - Silicon Microphotonics : A New...

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