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型號 CA-1310
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型號
CA-1310
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產品詳情

Educational Objectives

l   He-Ne Ring Laser

l   Ring Laser Modes

l   Interference

l   Single Mode Etalon

l   Sagnac Effect

l   Mode Lock-in

l   Measurement of Rotation

l   Dynamic Range

This active laser gyroscope contains a ring laser consisting of an openframe He- Ne tube and a triangular resonator. The whole ring laser is set up ona motorized rotational platform. The rotational velocity can be varied allowingto the dynamic range of the Gyroscope to be investigated. Counter-rotatingmodes of the ring laser are coupled out and are superimposed for demonstrationand measurement of the Sagnac effect. The resulting interference is detectedand electronically converted to a frequency proportional to the rotational velocity.The lock-in threshold is determined by variation of the rotation frequency. Singlemode operation is achieved by an etalon mounted in the ring resonator.