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AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsMitsuru Irie, Takeshi Utakouji, Morihiro Karaki, Nobuo Takeshita, Manabu Koike, Yasuyuki Satou, Naoyuki Egusa, Masahisa Shinoda, Akira Ishimori, Akihiro Shima, Shigenori Yagi
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The second harmonic wave of a solid laser light which is emitted from a second harmonic wave light source is divided into a plurality of laser beams by a diffraction grating. The divided laser beams are converged on a record carrier into a plurality of light spots by an optical head. Magnetic field generating coils for applying magnetic fields to the respective light spots in accordance with the recording signals from a signal line are disposed under the record carrier. Part of the solid laser light is reflected and input to a beam splitter. Since part of the light input to the beam splitter is taken out, a stabilizer controls the output of the solid laser light from the second harmonic wave light source, parallel recording/reproduction using the plurality of light spots which are arranged on the record carrier is enabled and the formation of the plurality of light spots is effectively controlled. Thus, a magneto-optical recording and reproducing apparatus which is capable of high-density recording and high-speed data transfer, which supplies a stable and accurate optical output, and which facilitates the control of the optical output is provided.
A magneto-optical recording and reproducing apparatus for recording information at a position of a record carrier irradiated with a laser beam by applying a magnetic filed whose polarity is inverted or whose strength is modulated in accordance with said recording information to said record carrier and by irradiating said recording information to said record carrier with said laser beam, said magneto-optical recording and reproducing apparatus comprising:
A magneto-optical recording and reproducing apparatus, comprising:
Dependencies are inferred from the claim text.