| Presentation | 1998/8/28 A Super Thin Laser-Detector-Hologram Unit for High Speed and High Density Optical Disk Systems Shoichi Takasuka, Shin'ichi Ijima, Yashuyuki Kouchi, Hideyuki Nakanishi, Akio Yoshikawa, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A super thin laser-detector-hologram(LDH)unit has been realized for very thin and high performance optical pick-ups which are fundamental parts of optical disk systems. For this LDH unit, we have developed an LD/PD integrated device. The LD/PD integrated device consists of a laser diode(LD)mounted on a Si photo-detector(PD)substrate having a 45° micro-mirror built on Si(111)facet which combines optically the LD and the PD element. We have integrated a holographic optical element(HOE)with this LD/PD integrated device and realized the super thin LDH unit which reduces the thickness of the conventional optical pick-ups from 40mm to 8mm. Furthermore, we have integrated the I-V amplifiers for CD, CD-ROM, MD applications and a polarized beam splitter for MD application with this unit in order to realize the high performance. The characteristics of these units are sufficient for optical pick-ups for high speed CD-ROM systems, magneto-optical disk systems, DVD systems and so on. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | optical disk systems / optical pick-up / laser diode / photo-detector / laser-detector-hologram unit |
| Paper # | EMD98-43,CPM98-91,OPE98-64,LQE98-58 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 1998/8/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Super Thin Laser-Detector-Hologram Unit for High Speed and High Density Optical Disk Systems |
| Sub Title (in English) | |
| Keyword(1) | optical disk systems |
| Keyword(2) | optical pick-up |
| Keyword(3) | laser diode |
| Keyword(4) | photo-detector |
| Keyword(5) | laser-detector-hologram unit |
| 1st Author's Name | Shoichi Takasuka |
| 1st Author's Affiliation | Electronics Research Laboratory, Corporate Research & Development, Matsushita Electronics Corporation() |
| 2nd Author's Name | Shin'ichi Ijima |
| 2nd Author's Affiliation | Electronics Research Laboratory, Corporate Research & Development, Matsushita Electronics Corporation |
| 3rd Author's Name | Yashuyuki Kouchi |
| 3rd Author's Affiliation | Electronics Research Laboratory, Corporate Research & Development, Matsushita Electronics Corporation |
| 4th Author's Name | Hideyuki Nakanishi |
| 4th Author's Affiliation | Electronics Research Laboratory, Corporate Research & Development, Matsushita Electronics Corporation |
| 5th Author's Name | Akio Yoshikawa |
| 5th Author's Affiliation | Electronics Research Laboratory, Corporate Research & Development, Matsushita Electronics Corporation |
| Date | 1998/8/28 |
| Paper # | EMD98-43,CPM98-91,OPE98-64,LQE98-58 |
| Volume (vol) | vol.98 |
| Number (no) | 256 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |