Study on a broad-area laser diode with external cavity feedback |
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Authors: | Chong Liu Jianhong Ge Jun Chen |
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Affiliation: | aState Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, PR China |
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Abstract: | The external cavity feedback of a broad-area laser diode is investigated. In Fourier optic methods, the inserted prism in an external cavity can be interpreted as a spatial filter in the Fourier plane of the laser diode. The transverse mode can be selected by changing the position of the filter. As the result of a self-consistency theoretical analysis, the output beam of the external cavity has a single-lobed far-field profile. It agrees well with the experiment result. The beam times-diffraction-limit-factor M2 is measured to be 1.16. |
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Keywords: | External cavity feedback Broad-area laser diode Self-consistency theory |
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