Lasers, Fiber Optics, and Communications

Investigation on high transmission efficiency 7 × 1 pump combiner

[+] Author Affiliations
Yang Cao, Wei Shi, Quan Sheng, Shijie Fu, Haiwei Zhang, Xiaolei Bai, Jianquan Yao

Tianjin University, Institute of Laser and Opto-Electronics, College of Precision Instrument and Opto-Electronics Engineering, Tianjin 300072, China

Liang Qi

HFB Photonics Co. Ltd., Shandong 264209, China

Opt. Eng. 55(12), 126102 (Dec 07, 2016). doi:10.1117/1.OE.55.12.126102
History: Received August 15, 2016; Accepted November 7, 2016
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Abstract.  The 7×1 end-pumped combiner employing 105/125  μm multimode fibers as pump fibers is investigated. The theoretical analysis reveals that sufficient taper length and low refractive index of the capillary should be adopted to fabricate high transmission efficiency combiners. Based on the simulation results, we fabricate a 7×1 end-pumped pump combiner with an average transmission efficiency of 98.9% and a total return loss of 1.1‰. The measured internal operating temperature of this combiner indicates it can endure pump power of the order of kilowatts.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Yang Cao ; Wei Shi ; Quan Sheng ; Shijie Fu ; Haiwei Zhang, et al.
"Investigation on high transmission efficiency 7 × 1 pump combiner", Opt. Eng. 55(12), 126102 (Dec 07, 2016). ; http://dx.doi.org/10.1117/1.OE.55.12.126102


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