A laser modulating and driving device comprises a modulation signal generating unit configured to generate a laser modulation signal consisting of a pair of small swing differential signals based on pixel data, and a driving unit configured to drive a laser according to the laser modulation signal supplied from the modulation signal generating unit.

 
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< Optical disc apparatus

> Method, program and system of forming visual image on optical disk

> Optical disc drive apparatus with an indirect semiconductor laser containing an asymmetric quantum well structure
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