Title :
A novel highly integrated red LDH (laser/detector/hologram) unit for high-density magneto-optical disk system
Author :
Ijima, S. ; Nakanishi, H. ; Takasuka, S. ; Takayama, T. ; Yoshikawa, A. ; Itoh, K. ; Arai, A. ; Nagata, T. ; Hayashi, T. ; Nakamura, T.
Author_Institution :
Electron. Res. Lab., Matsushita Electron. Corp., Osaka, Japan
Abstract :
Summary form only given. Recently, much attention has been paid to integrate optical pick-up components to realize a thin and small-sized pick-up for optical disk systems. In a conventional pick-up for a magneto-optical disk system, 11 optical components are needed to detect magneto-optical recording signals. As a result, a pick-up becomes inevitably thick and large. In this work, we demonstrate a very small-sized (3.5/spl times/8.8/spl times/6.6 mm) LDH unit, which integrates 11 optical components including a 50 mW high power AlGaInP red laser diode for high-density magneto-optical disk systems.
Keywords :
holographic optical elements; integrated optics; magneto-optical recording; optical signal detection; photodetectors; quantum well lasers; 3.5 mm; 50 mW; 6.6 mm; 8.8 mm; AlGaInP; HOE; high-density magneto-optical disk system; high-power red laser diode; hybrid device; integrated laser/detector/hologram unit; optical pick-up components; photodetector substrate; quantum well laser; servo signals detection; small-sized pick-up; Disk recording; Integrated optics; Magnetooptic devices; Magnetooptic recording; Optical devices; Optical recording; Packaging; RF signals; Servomechanisms; Signal detection;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-595-1
DOI :
10.1109/CLEO.1999.834492
