Chinese Optics Letters, 2006, 4 (2): 0266, Published Online: Jun. 6, 2006
S+C band optical amplification in Er3+-Tm3+ co-doped fiber Download: 653次
060.0060 fiber optics and optical communications 060.2320 fiber optics amplifiers and oscillators 060.2330 fiber optics communications
Abstract
A new type of optical amplifier based on co-doping erbium in thulium doped fiber is proposed to realize S+C band gain by dual-wavelength (800+1410 nm) pumping scheme which is obtainable from laser diode. A novel model is established for the co-doped fiber considering the Er3+ to Tm3+ energy transfer process. Using appropriate fiber parameters and energy transfer parameters, the coupled rate equations are analyzed and solved; the concentrations of Er3+ and Tm3+ and fiber length were optimized to get more uniform gain. The results predicted that the S+C band gain can be achieved at the same time by co-doping erbium in thulium doped fluoride fiber.
Jun Chang, Qingpu Wang, Xingyu Zhang, Zejin Liu, Zhaojun Liu, Gangding Peng. S+C band optical amplification in Er3+-Tm3+ co-doped fiber[J]. Chinese Optics Letters, 2006, 4(2): 0266.