Abstract

The spectral density of low-frequency power noise and pointing noises of an external cavity AlGaAs/GaAs laser in Littman—Metcalf configuration is studied in the frequency region up to 1 kHz. The relative level of the power and pointing noises in the laser operating on a single longitudinal mode of the external resonator was ∼10-6 Hz-1/2 and did not change substantially when the feedback was switched off. Long-term intensity fluctuations caused by intermode switchings did not exceed 2%.

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