Novel hybrid passive componet for EDFA

Shuihua Liu; Shan Jiang; Luozhen Fang; Guohua Yu; Qiuhua Liu

doi:10.1117/12.253201

30 September 1996 Novel hybrid passive componet for EDFA

Shuihua Liu, Shan Jiang, Luozhen Fang, Guohua Yu, Qiuhua Liu

Proceedings Volume 2891, Integrated Optoelectronics; (1996) https://doi.org/10.1117/12.253201
Event: Photonics China '96, 1996, Beijing, China

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.

Citation Download Citation

Shuihua Liu, Shan Jiang, Luozhen Fang, Guohua Yu, and Qiuhua Liu "Novel hybrid passive componet for EDFA", Proc. SPIE 2891, Integrated Optoelectronics, (30 September 1996); https://doi.org/10.1117/12.253201

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