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ICOP & ICPET 2018, 24 - : 85-88 Back to browse issues page
Laser Diode Electro-optics Characteristics Improvement by Graded Index Refractive Index Profile Broadened Waveguide
Seyed Peyman Abbasi * 1, Hamed Varzkari 1, Mohammad Hossein Mahdieh 1
1- Physics Faculty Iranian University Science and Technology
Abstract:   (128 Views)

Thickness and refractive index of waveguide layer determine the electro-optic characteristics in semiconductor lasers. In this research the stepped refractive index profile was replaced by suitable broadened graded refractive index in waveguide layer. The results show such design can significantly improve the vertical divergence and threshold current for laser operating in constant efficiency. In order to preventing of slop efficiency decreasing in broadened waveguide, we proposed the optimum dopant in n-section of waveguide without extra effective free carrier loss.

Keywords: Diode Laser, Graded refractive Index, Stepped refractive Index, Waveguide.
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Type of Study: Research | Subject: Special
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Abbasi S P, Varzkari H, Mahdieh M H. Laser Diode Electro-optics Characteristics Improvement by Graded Index Refractive Index Profile Broadened Waveguide. ICOP & ICPET. 2018; 24 :85-88
URL: http://opsi.ir/article-1-1583-en.html


Volume 24 - Back to browse issues page
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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