| 摘要 |
An object of the present invention is to stably manufacture a semiconductor laser element having a plurality of wavelengths without split of a wafer in a wafering step while preventing a tracking error due to the returning light of three beams in one semiconductor laser. The present invention provides a semiconductor laser element, which comprises a plurality of emitting regions formed on one substrate, each region having different wavelength, wherein at least one side portion of at least one emitting region is opposed to a part of the substrate.
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