5 December 2005 Study on cross polarization modulation in semiconductor optical amplifier
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Proceedings Volume 6020, Optoelectronic Materials and Devices for Optical Communications; 60202S (2005); doi: 10.1117/12.635154
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China
Abstract
Cross modulations such as cross polarization modulation, cross gain modulation, cross phase modulation are import nonlinear effects in semiconductor optical amplifier (SOA). In this paper, the relationship among them is explored systematically; theoretical simulation is made based on a multi-section SOA model which takes into birefringence effect account, and the results agree well with experimental results. The linear relationship among cross gain modulation (in dB unit), cross phase modulation and cross polarization modulation is indicated. A more significant cross modulation effect is observed when pump wavelength is nearer to peak-gain wavelength region, while it becomes smaller when pump wavelength is more away from peak-gain region. No perceptible polarization state change of output probe beam is observed when the input polarization of pump beam is varied due to that the gain of the SOA is polarization insensitive.
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Lirong Huang, Dexiu Huang, Changjian Ke, Deming Liu, Xinliang Zhang, "Study on cross polarization modulation in semiconductor optical amplifier", Proc. SPIE 6020, Optoelectronic Materials and Devices for Optical Communications, 60202S (5 December 2005); doi: 10.1117/12.635154; https://doi.org/10.1117/12.635154
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KEYWORDS
Modulation

Polarization

Laser beam diagnostics

Phase modulation

Semiconductor optical amplifiers

Birefringence

Refractive index

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