Analysis of the enhanced coupling efficiency for different profile curves of special optical taper

For enhancing the coupling efficiency between the beam and the photodiode, a special optical taper is proposed for receiving optical signal. Based on the circular symmetric structure of special optical taper, the profile curve equations of it are deduced, including the trigonometric function type, p...

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Bibliographic Details
Published inOptoelectronics letters Vol. 10; no. 4; pp. 281 - 284
Main Author 高飞龙 付兴虎 付广伟 毕卫红
Format Journal Article
LanguageEnglish
Published Heidelberg Tianjin University of Technology 01.07.2014
Subjects
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
三角函数
光电二极管
光锥
入射角度
断面曲线
方程推导
耦合效率
轮廓曲线
Coupling Efficiency
Profile Curve
Total Internal Reflection
Exponential Type
Incident Angle
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ISSN1673-1905
1993-5013
DOI10.1007/s11801-014-4063-1

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Summary:For enhancing the coupling efficiency between the beam and the photodiode, a special optical taper is proposed for receiving optical signal. Based on the circular symmetric structure of special optical taper, the profile curve equations of it are deduced, including the trigonometric function type, parabolic type and exponential type. Moreover, the coupling efficiencies for special optical tapers with different profile curves are studied. The relationships of incident position, incident angle and coupling efficiency are analyzed. Finally, the comparison of coupling efficiency analytical results is also given.
Bibliography:12-1370/TN
For enhancing the coupling efficiency between the beam and the photodiode, a special optical taper is proposed for receiving optical signal. Based on the circular symmetric structure of special optical taper, the profile curve equations of it are deduced, including the trigonometric function type, parabolic type and exponential type. Moreover, the coupling efficiencies for special optical tapers with different profile curves are studied. The relationships of incident position, incident angle and coupling efficiency are analyzed. Finally, the comparison of coupling efficiency analytical results is also given.
ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-014-4063-1