Acta Optica Sinica, Volume. 28, Issue 10, 1898(2008)
All-Optical Buffer Based on Polarization Rotation in Semiconductor Optical Amplifier
All-optical buffer can store the packets in optical-domain and is a key component in all-optical router, all-optical calculation and all-optical switching. A novel all-optical buffer based on nonlinear polarization rotation in semiconductor optical amplifier (SOA) and a method which utilizes the principal states of polarization (PSP) to find two orthogonal linear states of polarization (SOPs) were proposed. This method can measure the SOP on-line. By adjusting the injection current of SOA the conversion between two orthogonal linear SOPs was realized. The operation of the proposed optical buffer at 2.5 Gb/s was experimentally setup. The writing in and reading out operations of 1024 bits random data for 6 circulations by this optical buffer were demonstrated.
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Cheng Mu, Wu Chongqing, Zhao Rui, Song Chao, Li Zhengyong, Wang Yaping. All-Optical Buffer Based on Polarization Rotation in Semiconductor Optical Amplifier[J]. Acta Optica Sinica, 2008, 28(10): 1898