Recording device and optical oscillator device

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United States of America Patent

PATENT NO 8472302
APP PUB NO 20120044793A1
SERIAL NO

13209714

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A recording device that records information in an optical recording medium includes: a self excited oscillation semiconductor laser including a saturable absorber section to apply a bias voltage and a gain section to inject a gain current, and also emitting a laser light to record the information in the optical recording medium; a reference signal generation unit generating a master clock signal and also supplying an injection signal synchronized with the master clock signal to the gain section of the self excited oscillation semiconductor laser; and a recording signal generation unit generating a recording signal based upon the master clock signal and also applying the recording signal to the saturable absorber section of the self excited oscillation semiconductor laser as the bias voltage.

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Patent Owner(s)

Patent OwnerAddress
SONY CORPORATIONTOKYO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujita, Goro Kanagawa, JP 128 803
Kuramoto, Masaru Kanagawa, JP 87 565
Miyajima, Takao Kanagawa, JP 28 333
Watanabe, Hideki Kanagawa, JP 241 1931

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