TY - JOUR
T1 - Multiwavelength fiber laser based on nonlinear polarization rotation
AU - Zhang, Zuxing
AU - Sang, Minghuang
AU - Ye, Zhiqing
AU - Kuang, Qiqiang
AU - Nie, Yiyou
PY - 2008/4
Y1 - 2008/4
N2 - Multiwavelength fiber laser is a perfect light source for future wavelength-division-multiplexing optical communication systems. A multiwavelength fiber laser based on nonlinear polarization rotation with up to 18 wavelengths has been proposed and demonstrated. The intensity- and wavelength-dependent loss induced by nonlinear polarization rotation effect is used to alleviate the mode competition in the homogeneous broadening gain medium of erbium-doped fiber. Instead of traditional filters, a polarization-maintaining fiber is inserted into the laser cavity, with which the polarization-dependent isolator composes an equivalent Lyot birefringent fiber filter. The in-line birefringence fiber filter is used to simplify the laser configuration, which benefits systematic integration. The effect of the 980 nm pump power on the multiwavelength generation is investigated. It is shown that the pump power contributes a lot to the evenness of the multiwavelength spectra due to the intensity dependence of nonlinear polarization rotation effect.
AB - Multiwavelength fiber laser is a perfect light source for future wavelength-division-multiplexing optical communication systems. A multiwavelength fiber laser based on nonlinear polarization rotation with up to 18 wavelengths has been proposed and demonstrated. The intensity- and wavelength-dependent loss induced by nonlinear polarization rotation effect is used to alleviate the mode competition in the homogeneous broadening gain medium of erbium-doped fiber. Instead of traditional filters, a polarization-maintaining fiber is inserted into the laser cavity, with which the polarization-dependent isolator composes an equivalent Lyot birefringent fiber filter. The in-line birefringence fiber filter is used to simplify the laser configuration, which benefits systematic integration. The effect of the 980 nm pump power on the multiwavelength generation is investigated. It is shown that the pump power contributes a lot to the evenness of the multiwavelength spectra due to the intensity dependence of nonlinear polarization rotation effect.
KW - erbium-doped fiber laser
KW - guided-wave and fiber optics
KW - multiwavelength fiber laser
KW - nonlinear polarization rotation
UR - http://www.scopus.com/inward/record.url?scp=43749107363&partnerID=8YFLogxK
U2 - 10.3788/AOS20082804.0648
DO - 10.3788/AOS20082804.0648
M3 - Article
AN - SCOPUS:43749107363
SN - 0253-2239
VL - 28
SP - 648
EP - 652
JO - Guangxue Xuebao [Acta Optica Sinica]
JF - Guangxue Xuebao [Acta Optica Sinica]
IS - 4
ER -