Anritsu Corporation

Toshiyuki Suzuki

Masaya Nanami

Takeshi Tsukamoto

A gas detecting apparatus includes a gas cell, a laser source, a light diffuser and a photodetector. The gas cell has a gas inlet hole for letting the target gas come inside and a gas discharge hole for discharging the target gas, and retains a target gas to be detected. The laser source emits coherent light into the gas cell in order to detect a concentration of the target gas. The light diffuser is disposed in the optical path of the coherent light output from the laser source to diffuse the coherent light, thereby eliminating coherence of the coherent light. The photodetector receives light diffused by the light diffuser.

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Atsugi, Japan

Toshiyuki Suzuki