A New Automatic Measuring Method for Optical Fibers Using an Acoustooptic Tunable Filter

Takahashi, Hideo; Masuda, Chihiro; Miyaji, Kagami

doi:10.1109/tim.1980.4314951

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Measurement Of Optical Activity1

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1982

1986

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“…When the sample is optically active, the phase of the received signal Iq á'iñevs 2Θ when measured with sample and without sample (see (3) and (10)). The measured wavefomi of the optical isolator (Faraday glass) at 0.633-μχη He-Ne laser (Ω = 97 MHz) is shown in Fig.…”

Section: Measurement Of Optical Activitymentioning

confidence: 99%

An application for optical measurements using a rotating linearly polarized light source

Takahashi

Masuda

Ibaraki

et al. 1986

IEEE Trans. Instrum. Meas.

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The apparatus of a linearly polarized light source that ro tates at arbitrary high frequencies was constructed using an Acoustooptic Tunable Filter employing a TeOz crystal. The characteristics of optical devices, such as birefringence of optical fiber, transmisslvity of half mirror, angle of rotation of optical isolator, and film thickness and refractive index of optical thin-film, were measured using this ap paratus. The advantages of this apparatus are Its simple construction, ability to produce high rotating frequencies, and ability to use various laser beams.

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Section: Measurement Of Optical Activitymentioning

confidence: 99%