【摘 要】
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We present a compact and practical scheme of building a ～780 nm external cavity diode laser (ECDL) whose wavelength is mainly determined by an interference filte
【机 构】
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State Key Laboratory of Aerodynamics,China Aerodynamics Research and Development Center,Mianyang 621
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We present a compact and practical scheme of building a ～780 nm external cavity diode laser (ECDL) whose wavelength is mainly determined by an interference filter.The Lorentzian linewidth measured by the heterodyne beating between two identical lasers is 60 kHz,and the geometry size of the laser is only 71.5 mm×65 mm40 mm.The linear cavity design is less sensitive to misalignment induced by mechanical and thermal disturbances,and in comparison to a common gating-based design,the sensitivity to vibration is substantially reduced.Due to its excellent performance,the laser design has already been applied to cold atom trapping experiments.This interference filter ECDL method can also be extended to other wavelengths and widen the application range of diode laser.
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