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Volume 25 - ICOP & ICPET 2019
ICOP & ICPET _ INPC _ ICOFS 2019, 25 - ICOP & ICPET 2019: 49-52 |
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Dehghan H, Zakeri A, Ahmadi K. An investigation of gain enhancement in waveguides doped by Ti and Er using an chalcogenide layer. ICOP & ICPET _ INPC _ ICOFS 2019; 25 :49-52
URL: http://opsi.ir/article-1-1747-en.html
URL: http://opsi.ir/article-1-1747-en.html
1- Department of Physics, Shiraz University, Iran
Abstract: (2301 Views)
A combination of an chalcogenide waveguide and a channel waveguide presents a suitable and practical device for transmission and processing of signals. Moreover using Er in these waveguides enhances the gain and increases the quality factor. Putting these waveguides together provides development of a new group of waveguide systems having higher potential and complexity. We have shown in this work that the presence of a chalcogenide layer facilitates the overlap between the mode profile and Er concentration distribution profile in Lithium Niobate waveguides and hence enhances the optical gain. By increasing the layer thickness it is tried to achieve the optimum gain by investigating the mode pulling and the overlap data. We could increase the overlap between the mode profile and Er concentration distribution profile in Lithium Niobate waveguides by 350 % and the optical gain by 84 %.
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