| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To stabilize the peak intensity of a pulse output. <P>SOLUTION: A peak intensity A of a pulse output detected by a photodiode is measured, and a difference B-A between the peak intensity A and a reference peak intensity B that is preliminarily set is determined (step D1). Then, a driving current correcting amount C=k(B-A) is determined (step D2). Next, a value obtained by adding the driving current correcting amount C to the last driving current I<SB>t-1</SB>is set as a new driving current I<SB>t</SB>. At the next pulse output, the new driving current I<SB>t</SB>is supplied to a semiconductor laser (step D3). <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
