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Proceedings Paper

Novel hybrid passive componet for EDFA
Author(s): Shuihua Liu; Shan Jiang; Luozhen Fang; Guohua Yu; Qiuhua Liu
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Paper Abstract

In this paper, a novel hybrid passive component for EDFA was reported. This component integrated the 1550 nm polarization independent optical isolator and the 980/1550 nm pump WDM within a single compact case, and realized the reduction of insertion loss, cost and package size. The following techniques were adopted in fabricating this component: (1) high efficiency beveled end-face off-axis coupling between twin core ferrule and GRIN rod; (2) the pump WDM is based on GRIN rod and optical interference filter; (3) the optical polarization independent isolator using birefringence wedge, etc. This component was packaged in an ordinary isolator case as small as (Phi) 8 X 40 mm. The insertion loss of signal is less than 0.9 dB; the insertion loss of pump is less than 0.8 dB; the isolation of the built in isolator is more than 42 dB with +/- 15 nm pass-band and the return loss is more than 50 dB. This component has shown very stable performance against the environmental changes. It had been applied to a single forward pumped EDFA module, and has achieved the following good performance: more than 29 dB small signal gain, less than 5 dB noise figure, more than +10 dBm output power. The EDFA module has the dimension largely reduced to 15 X 100 X 130 mm.

Paper Details

Date Published: 30 September 1996
PDF: 6 pages
Proc. SPIE 2891, Integrated Optoelectronics, (30 September 1996); doi: 10.1117/12.253201
Show Author Affiliations
Shuihua Liu, Wuhan Research Institute of Posts and Telecommunications (China)
Shan Jiang, Wuhan Research Institute of Posts and Telecommunications (China)
Luozhen Fang, Wuhan Research Institute of Posts and Telecommunications (China)
Guohua Yu, Wuhan Research Institute of Posts and Telecommunications (China)
Qiuhua Liu, Wuhan Research Institute of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 2891:
Integrated Optoelectronics
Ray T. Chen; Won-Tien Tsang; BingKun Zhou, Editor(s)

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