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

Fei-long GAO; Xing-hu FU; Guang-wei FU; Wei-hong BI

doi:10.1007/s11801-014-4063-1

Journals >Optoelectronics Letters >Volume 10 >Issue 4 >Page 281 > Article

Optoelectronics Letters
Vol. 10, Issue 4, 281 (2014)

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

Fei-long GAO¹, Xing-hu FU^{1、2、3、*}, Guang-wei FU^1、2, and Wei-hong BI^1、2

Author Affiliations

¹School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China

²Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, Yanshan University, Qinhuangdao 066004, China

³Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200072, China

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DOI: 10.1007/s11801-014-4063-1 Cite this Article

GAO Fei-long, FU Xing-hu, FU Guang-wei, BI Wei-hong. Analysis of the enhanced coupling efficiency for different profile curves of special optical taper[J]. Optoelectronics Letters, 2014, 10(4): 281 Copy Citation Text

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Abstract

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.

GAO Fei-long, FU Xing-hu, FU Guang-wei, BI Wei-hong. Analysis of the enhanced coupling efficiency for different profile curves of special optical taper[J]. Optoelectronics Letters, 2014, 10(4): 281

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