Presentation 2004/8/19
High Coupling Efficiency of LD to Single Mode Fiber using a Ball Lens
Atsushi KAWAMURA, Seiichiro TABATA, Tatsuo HATTA,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We have developed high coupling efficiency LD module using a ball lens. Compared with aspherical lenses, ball lenses are of advantage to the cost. However, because of the lens aberration, LD to single mode fiber coupling efficiency is not more than -7.0dB using a low refractive index lens (n = 1.50). We calculated the coupling efficiency considering the lens aberration and designed a module using high refractive index lens. The result of our calculation and experiment shows the module using a ball lens achieves high coupling efficiency -4.4dB.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) ball lens / optical module / optical communication / aberration / coupling efficiency
Paper # EMD2004-33,CPM2004-59,OPE2004-116,LQE2004-31
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Conference Information
Committee EMD
Conference Date 2004/8/19(1days)
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Registration To Electromechanical Devices (EMD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) High Coupling Efficiency of LD to Single Mode Fiber using a Ball Lens
Sub Title (in English)
Keyword(1) ball lens
Keyword(2) optical module
Keyword(3) optical communication
Keyword(4) aberration
Keyword(5) coupling efficiency
1st Author's Name Atsushi KAWAMURA
1st Author's Affiliation Mitsubishi Electric Corporation()
2nd Author's Name Seiichiro TABATA
2nd Author's Affiliation Mitsubishi Electric Corporation
3rd Author's Name Tatsuo HATTA
3rd Author's Affiliation Mitsubishi Electric Corporation
Date 2004/8/19
Paper # EMD2004-33,CPM2004-59,OPE2004-116,LQE2004-31
Volume (vol) vol.104
Number (no) 263
Page pp.pp.-
#Pages 6
Date of Issue