Electrical polarization control of vertical-cavity surface-emitting lasers using polarized feedback and a liquid crystal

We report electrical control of the polarization state of a vertical-cavity surface-emitting laser (VCSEL), The VCSEL is subject to strong external optical feedback (up to 6% of emission), with polarization controlled by a liquid-crystal (LC) element, It is found that the contrast ratio of the compl...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 11; no. 2; pp. 155 - 157
Main Authors Wilkinson, C.I., Woodhead, J., Frost, J.E.F., Roberts, J.S., Wilson, R., Lewis, M.F.
Format Journal Article
LanguageEnglish
Published IEEE 01.02.1999
Subjects
Control surfaces
Control systems
Control theory
Distributed Bragg reflectors
Emissions control
Laser feedback
Liquid crystals
Mirrors
Optical control
Optical feedback
Optical polarization
Optical surface waves
Polarization
Surface emitting lasers
Vertical cavity surface emission lasers
Vertical cavity surface emitting lasers
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ISSN1041-1135
1941-0174
DOI10.1109/68.740688

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Summary:We report electrical control of the polarization state of a vertical-cavity surface-emitting laser (VCSEL), The VCSEL is subject to strong external optical feedback (up to 6% of emission), with polarization controlled by a liquid-crystal (LC) element, It is found that the contrast ratio of the complete system can be enhanced compared to the contrast ratio of the LC element alone.
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ISSN:1041-1135
1941-0174
DOI:10.1109/68.740688