Polarization switch and bistability in long-wavelength vertical-cavity surface-emitting lasers

LI Linfu; CHEN Jianjun

doi:10.7510/jgjs.issn.1001-3806.2015.04.019

To study the polarized conversion characteristics of vertical cavity surface emitting lasers (VCSEL), frequency-induced polarization switching (PS) and polarization bistability (PB) of 1550nm VCSEL subject to orthogonal optical injection were investigated numerically by adopting extended spin-flip model. The results show that under orthogonal optical injection, PS and PB can be achieved through varying the frequency detuning between the injected field and the x linearly polarized mode in VCSEL consecutively. Furthermore, the variation of injection power and bias current have strong effects on PB width and VCSEL output emission. The controlling of frequency-induced PS and PB in a 1550nm VCSEL can be realized with appropriate selection of operating conditions. This study has reference value for the application of VCSEL in all-optical switching and all-optical memory.

Polarization switch and bistability in long-wavelength vertical-cavity surface-emitting lasers

1. School of Information Engineering, Guizhou Minzu University, Guiyang 550025, China;

2. School of Medical Engineering, Xinjiang Medical University, Urumqi 830011, China

Received Date: 2014-05-05

Accepted Date: 2014-05-21

Available Online: 2015-07-25

Abstract: To study the polarized conversion characteristics of vertical cavity surface emitting lasers (VCSEL), frequency-induced polarization switching (PS) and polarization bistability (PB) of 1550nm VCSEL subject to orthogonal optical injection were investigated numerically by adopting extended spin-flip model. The results show that under orthogonal optical injection, PS and PB can be achieved through varying the frequency detuning between the injected field and the x linearly polarized mode in VCSEL consecutively. Furthermore, the variation of injection power and bias current have strong effects on PB width and VCSEL output emission. The controlling of frequency-induced PS and PB in a 1550nm VCSEL can be realized with appropriate selection of operating conditions. This study has reference value for the application of VCSEL in all-optical switching and all-optical memory.

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Reference (16)

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Polarization switch and bistability in long-wavelength vertical-cavity surface-emitting lasers

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