Title :
Gain and noise characteristics of single-mode Er3+/Yb3+ Co-doped phosphate glass fibers
Author :
XU, S.H. ; Yang, Z.M. ; Feng, Z.M. ; Zhang, Q.Y. ; Jiang, Z.H. ; Xu, W.C.
Author_Institution :
Key Lab. of Specially Functional Mater. of Minist. of Educ. & Inst. of Opt. Commun. Mater., South China Univ. of Technol., Guangzhou
Abstract :
Single-mode highly Er3+/Yb3+ co-doped phosphate glass-fiber has been fabricated by rod-in-tube technique. Gain and noise measurements of the phosphate glass fiber have been performed by dual-pump configure with two 976 nm fiber-pigtail LDs using a highly Er3+/Yb3+ co-doped phosphate fiber with a length of 5.0 cm. Gain spectra and noise figures with different input signal powers of -30, -10, and -1 dBm have been investigated when the signal wavelength was tuned from 1525 to 1565 nm. A peak net gain of 16.5 dB at 1534 nm with a -30 dBm input signal from a micro erbium-doped fiber amplifier (EDFA) based on the 5.0-cm-long phosphate fiber has been achieved, that is, a net gain coefficient as high as 3.3 dB/cm, which is to the best of our knowledge, the highest from this kind of fiber amplifiers reported to-date. At the -30, -10, and -1 dBm input signal levels, less than 8.0 dB noise figures over the whole C-band have been obtained.
Keywords :
erbium; optical fibre losses; optical fibre testing; optical glass; optical noise; optical pumping; phosphate glasses; ytterbium; C-band; EDFA; P2O5:Er,Yb; dual-pump configure; erbium-doped fiber amplifier; fiber gain measurement; fiber gain spectra; fiber noise figures; fiber noise measurement; fiber-pigtail LD; gain coefficient; microamplifier; optical propagation loss coefficients; rod-in-tube fabrication; single-mode Er3+-Yb3+ codoped phosphate glass fiber; size 5.0 cm; wavelength 1525 nm to 1565 nm; Erbium; Nanoelectronics;
Conference_Titel :
Nanoelectronics Conference, 2008. INEC 2008. 2nd IEEE International
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1572-4
Electronic_ISBN :
978-1-4244-1573-1
DOI :
10.1109/INEC.2008.4585566