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Semiconductor laser apparatus

A laser device and semiconductor technology, applied in the direction of semiconductor laser devices, semiconductor lasers, laser devices, etc., can solve the problems of deterioration of high-frequency characteristics of the infrared semiconductor laser element 902a

Inactive Publication Date: 2010-06-09
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, current flows to the red semiconductor laser element 902b through the insulating layer 904, deteriorating the high-frequency characteristics of the infrared semiconductor laser element 902a.

Method used

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  • Semiconductor laser apparatus
  • Semiconductor laser apparatus
  • Semiconductor laser apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0144] (1) Composition and connection of semiconductor laser device

[0145] The semiconductor laser device of the first embodiment includes a first semiconductor laser element and a second semiconductor laser element. The wavelength of laser light emitted from the first semiconductor laser element is different from the wavelength of laser light emitted from the second semiconductor laser element.

[0146] In the following description, a semiconductor laser element emitting blue-violet laser light (wavelength of about 400 nm) (hereinafter referred to as a blue-violet semiconductor laser element) is used as the first semiconductor laser element.

[0147] In addition, a semiconductor laser element (hereinafter referred to as a red semiconductor laser element) emitting red laser light (wavelength of about 658 nm) is used as the second semiconductor laser element.

[0148] figure 1 It is a perspective view showing the appearance of the semiconductor laser device of the first em...

no. 2 approach

[0280] (1) Composition and connection of semiconductor laser device

[0281] The semiconductor laser device according to the second embodiment differs from the semiconductor laser device 500 according to the first embodiment in the configuration and operation in the following points.

[0282] Figure 10 It is a schematic front view showing a state in which the cover 4 of the semiconductor laser device according to the second embodiment is removed, Figure 11 It is a schematic top view showing a state in which the cover 4 of the semiconductor laser device according to the second embodiment is removed.

[0283] Such as Figure 10 As shown, a conductive fusion layer H is formed on the conductive supporting member 5 integrated with the package main body 3 .

[0284] On the fused layer H, the blue-violet semiconductor laser element 10 is bonded so that the n-side pad electrode 10b constitutes the supporting member 5 side.

[0285] On the p-side pad electrode 10a of the blue-vio...

no. 3 approach

[0330] (1) Composition and connection of semiconductor laser device

[0331] The semiconductor laser device of the third embodiment differs from the configuration and operation of the semiconductor laser device 500 of the second embodiment in the following points.

[0332] Figure 13 It is a schematic front view showing a state in which the cover 4 of the semiconductor laser device according to the third embodiment is removed, Figure 14 It is a schematic top view showing a state in which the cover 4 of the semiconductor laser device according to the third embodiment is removed.

[0333] Such as Figure 13 As shown, a conductive fusion layer H is formed on the conductive supporting member 5 integrated with the package main body 3 . On the fused layer H, the blue-violet semiconductor laser element 10 is bonded so that the n-side pad electrode 10b constitutes the supporting member 5 side.

[0334] In the third embodiment, the width (Y direction) and length (X direction) of t...

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PUM

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Abstract

A sub-substrate, a blue-violet semiconductor laser device, an insulating layer, and a red semiconductor laser device are stacked in order on a support member through a plurality of fusion layers. Theinsulating layer is stacked on an n-side pad electrode of the blue-violet semiconductor laser device, and a conductive layer is formed on the insulating layer. The red semiconductor laser device is stacked on the conductive layer through a fusion layer. The conductive layer is electrically connected to a p-side pad electrode of the red semiconductor laser device. The n-side pad electrode of the blue-violet semiconductor laser device and the n-side pad electrode of the red semiconductor laser device are electrically connected to each other.

Description

technical field [0001] The present invention relates to a semiconductor laser device including a laser element. Background technique [0002] In recent years, with the high performance of computers and multimedia devices, the amount of information to be processed has increased significantly. Along with the increase in the amount of information, optical recording media and drive devices thereof have been developed corresponding to the increase in speed and capacity of information processing. [0003] Specific examples of the optical recording medium include a compact disc (hereinafter referred to as CD) and a digital versatile disc (hereinafter referred to as DVD). Specific examples of drive devices that perform playback and recording on these optical recording media include semiconductor laser devices for CDs and semiconductor laser devices for DVDs. The semiconductor laser device for CD can irradiate the infrared laser (wavelength of about 790nm) used when performing CD r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S5/40H01S5/022
Inventor 井上大二朗畑雅幸别所靖之
Owner SANYO ELECTRIC CO LTD