OPTICAL INFORMATION PROCESSOR, SEMICONDUCTOR LIGHT−EMITTING DEVICE, AND ITS MANUFACTURING METHOD

Title:

OPTICAL INFORMATION PROCESSOR, SEMICONDUCTOR LIGHT−EMITTING DEVICE, AND ITS MANUFACTURING METHOD

Document Type and Number:

WIPO Patent Application WO/2003/032304

Kind Code:

A1

Abstract:

In order that the natural frequency f of a nitride semiconductor laser (101) and the beat frequency of the beat of a returning light beam due to the separation L between the nitride semiconductor laser (101) and an optical disk (102) may resonate, the frequency difference between the natural frequency f and the beat frequency are so set that they satisfy the inequalities of the natural frequency f of the nitride semiconductor laser (101) and the separation L between the nitride semiconductor laser (101) and the optical disk (102) −0.5 ≤ mxc&sol (2 x L)−f ≤ 1.5 (GHz) (where m is a natural number and c is the velocity of light).

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Inventors:

ONO TOMOKI (JP)
ITO SHIGETOSHI (JP)

Application Number:

PCT/JP2002/009376

Publication Date:

April 17, 2003

Filing Date:

September 12, 2002

Export Citation:

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Assignee:

SHARP KK (JP)
ONO TOMOKI (JP)
ITO SHIGETOSHI (JP)

International Classes:

G11B7/135; G11B7/125; G11B7/127; H01S5/323; H01S5/343; H01S5/062; (IPC1-7): G11B7/135; G11B7/125; H01S5/10

Foreign References:

JP2000252589A	2000-09-14
JP2001308460A	2001-11-02
JP2002270970A	2002-09-20

Attorney, Agent or Firm:

Yamamoto, Shusaku (Crystal Tower 2-27, Shiromi 1-chome, Chuo-k, Osaka-shi Osaka, JP)

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