Polarization-independent wavelength conversion is demonstrated by using four-wave mixing (FWM) in a single semiconductor optical amplifier (SOA). In this scheme, all the incident fields are split into two orthogonal-polarized parts by polarizing beam splitters (PBS). Each of the two parts is then transmitted into one facet of the SOA and they are counter-propagating through the same amplifier. Wavelength conversion with the polarization sensitivity less than 1.3 dB is obtained over a range from 1510 to 1620 nm.
© 2005 Chinese Optics Letters
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(140.3280) Lasers and laser optics : Laser amplifiers
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
Xiaofeng Xu, Jue Wei, Zhihui Kang, Yun Jiang, Weizhong Zhu, Yunyun Qiao, and Jinyue Gao, "Polarization-independent wavelength conversion using a single semiconductor optical amplifier," Chin. Opt. Lett. 3, 110-112 (2005)