| 摘要 |
PROBLEM TO BE SOLVED: To efficiently manufacture semiconductor laser chips by applying screening to many semiconductor laser chips at the same time for the discrimination of propriety of the semiconductor laser chips. SOLUTION: Recessed parts (2) are provided in a single silicon substrate (1) on which semiconductor laser chips (3) are mounted, a photodiode (5) to monitor a luminous quantity of a light (11) emitted from each semiconductor laser chip (3) is provided in a wall face of each recessed part (2), power is supplied to each semiconductor laser chip (3) through a probe (9) to stimulate the chip (3) for a prescribed time resulting in stabilizing the characteristic of the semiconductor laser chip (3) and the propriety of each semiconductor laser chip (3) is discriminated on the basis of a change in a current after the power application.
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