Semiconductor Laser Diodes Application Notes
If an excessive current flows in a laser diode, a large optical output is generated occur and the emitting facet may be damaged. This optical damage can happen even with a momentary over-current. Therefore, it specifies the largest current that must not be exceeded even for a moment. In particular, please pay attention to excessive currents when a power supply is applied and excessive currents caused by static electricity. Although an use within the absolute maximum ratings is guaranteed, the values are specified in the condition of 25°C. As the temperature of the laser diode rises, its maximum output power and power dissipation decreases and its operating range is reduced. Even within the absolute maximum ratings, the life becomes shorter by using at high temperatures. For this reason, the design should include sufficient margin for heat radiation and light output.
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2021.3 |
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Rev.001 |
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63AN169E |
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9.4 MB |
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