Title :
Design and Fabrication of a Small-Form-Factor Optical Pickup Head
Author :
Chiu, Yi ; Shih, Hsi-Fu ; Chiou, Jin-Chern ; Cheng, Shih-Tung ; Hung, Kuo-Yung ; Tseng, Fan-Gang ; Fang, Weileun
Author_Institution :
Nat. Chiao Tung Univ., Hsinchu
fDate :
5/1/2009 12:00:00 AM
Abstract :
This paper presents the design and fabrication of a small-form-factor optical pickup head (OPH) for both red and blue wavelength. A holographic optical element (HOE) is used for beam splitting, aberration correction, and servo-signal generation to reduce the number of components and simplify the assembly procedure. In addition to demonstrating this OPH by using existing discrete components, several key components and processes are developed to use micro-electro-mechanical system (MEMS) technology to facilitate batch fabrication and wafer level assembly of the micro OPU.
Keywords :
aberrations; holographic optical elements; micro-optomechanical devices; optical beam splitters; optical design techniques; optical fabrication; optical storage; MEMS; aberration correction; beam splitting; holographic optical element; microelectro-mechanical system; servo-signal generation; small-form-factor optical pickup head; wafer level assembly; Assembly; MEMS; batch fabrication; optical pickup head; small form factor;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2009.2016132
