30 September 1996 Novel hybrid passive componet for EDFA
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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.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shuihua Liu, Shuihua Liu, Shan Jiang, Shan Jiang, Luozhen Fang, Luozhen Fang, Guohua Yu, Guohua Yu, Qiuhua Liu, Qiuhua Liu, } "Novel hybrid passive componet for EDFA", Proc. SPIE 2891, Integrated Optoelectronics, (30 September 1996); doi: 10.1117/12.253201; https://doi.org/10.1117/12.253201
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