| 摘要 |
PROBLEM TO BE SOLVED: To propose a wavelength spectrum detection method using an APD capable of realizing a compact, portable device of which installation locations are not limited. SOLUTION: In the method for detecting the wavelength spectrum of arbitrary light, a multiplication factor detection circuit for detecting the multiplication factor of an avalanche photodiode is used to detect the multiplication factor when light for comparison of which wavelength is known in advance is allowed to enter the avalanche photodiode, the multiplication factor when the arbitrary light is allowed to enter the avalanche photodiode using the multiplication factor detection circuit, and the wavelength spectrum of the arbitrary light based on a numerical formula 1. COPYRIGHT: (C)2009,JPO&INPIT
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