READ WRITE PERFORMANCE AND RELIABILITY OF A FLYING OPTICAL HEAD USING A MONOLITHICALLY INTEGRATED LD-PD

被引：6
|
作者：
UKITA, H
SUGIYAMA, Y
NAKADA, H
KATAGIRI, Y
机构：
[1] NTT Applied Electronics Laboratories, Nippon Telegraph and Telephone Corporation, Musashino-shi, Tokyo, 180
来源：
APPLIED OPTICS | 1991年 / 30卷 / 26期
关键词：
FLYING OPTICAL HEAD; OPTICALLY SWITCHED LASER HEAD; PHASE-CHANGE MEDIUM; MONOLITHICALLY INTEGRATED LD-PD; RIDGED WAVE-GUIDE; 1.3-MU-M WAVELENGTH INGAASP; READ WRITE PERFORMANCE; HEAD DISK INTERFACE; CONTACT START STOP;
D O I：
10.1364/AO.30.003770
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A flying head using the switching characteristics of an optically switched laser diode is shown to have an excellent read/write performance and head-disk interface. This head consists of an aluminum nitride slider and a 1.3-mu-m wavelength InGaAsP laser diode monolithically integrated with a photodetector (LD-PD). A ridged waveguide is fabricated on top of the LD facet to converge the light beam. The lensless flying head has a minimum power of 18 mW for writing information (at 1 MHz) at a medium velocity of 7 m/s. The disk has a SiN protective layer over a SbTeGe phase-change recording medium. The head signal remains good after more than 5 X 10(4) contact start/stop cycles and 4.4 X 10(8) passes in an experimental room environment.
引用
收藏
页码：3770 / 3776
页数：7
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