Fiber Optics and Optical Communication

Aberration analysis and efficiency improvement of a bidirectional optical subassembly

[+] Author Affiliations
Hao Wu, Zhangdi Huang, Ziyan Yu, Xiaoshi Qian, Fei Xu

Nanjing University, Department of Material Science and Engineering and National Laboratory of Solid State Microstructures, 22 Hankou Road, Nanjing, 210093, China

Beckham Chen

Light Master Technology (Ningbo) Inc., eGtran Group, No. 3 Yangzi River Road South Area, Ningbo Free Trade Zone, China

Yanqing Lu

Nanjing University, Department of Material Science and Engineering and National Laboratory of Solid State Microstructures, 22 Hankou Road, Nanjing, 210093, China and Light Master Technology (Ningbo) Inc., eGtran Group, No. 3 Yangzi River Road South Area, Ningbo Free Trade Zone, China

Opt. Eng. 48(10), 105008 (October 23, 2009). doi:10.1117/1.3251278
History: Received June 23, 2009; Revised September 02, 2009; Accepted September 04, 2009; Published October 23, 2009
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An approach to improve the coupling efficiency of bidirectional optical subassembly (BOSA) modules is proposed and experimentally demonstrated. We analyzed the wavefront aberration coefficients of a typical BOSA. It was found that the 45-deg wavelength filter induces coma and astigmatism, and then it further deteriorates the laser diode to fiber coupling. We measured the BOSA efficiencies based on a series of different filters. For a typical 0.5-mm filter, 25% coupling efficiency improvement was achieved by optimizing the filter parameters.

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© 2009 Society of Photo-Optical Instrumentation Engineers

Citation

Hao Wu ; Zhangdi Huang ; Ziyan Yu ; Xiaoshi Qian ; Fei Xu, et al.
"Aberration analysis and efficiency improvement of a bidirectional optical subassembly", Opt. Eng. 48(10), 105008 (October 23, 2009). ; http://dx.doi.org/10.1117/1.3251278


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