Method of driving semiconductor laser with wide modulation band,

Coherent light generators – Particular beam control device – Modulation

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372 45, H01S 310, H01S 319

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058504087

ABSTRACT:
This invention discloses the following. Two modulation currents are injected into different electrodes of a semiconductor laser having a plurality of electrodes. The relationship between the phases of the two modulation currents is so adjusted that an output waveform is not distorted especially when a modulation frequency is low. Polarization modulation is applied as the modulation form.

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