Based on the optical rotatory dispersion effect, an quartz optical filter is constructed with quartz crystal and polarizer for picking up the 590 nm spectral line in the intracavity frequency-doubled Nd∶YAG/BaWO4 Raman laser. The operating principle is analyzed by means of Müller matrix and Stokes parameters. The filtering performance is tested by AQ-6315A spectrometer with the intracavity Raman yellow laser as the light source. The experimental results show that the 1180 nm spectra line is extracted after filtering. The filter is compact, does not change the direction of optical beam, and can be applied to frequency-doubled laser.