24 January 2008 Optical head design using prism-type holographic optical element for small form factor applications
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Abstract
This paper presents an optical head design that minimizes the component number and miniaturizes the head dimension by using a novel reflective prism-type holographic optical element (PT-HOE) for the next-generation high-density bluelight system with small form factor (SFF). The PT-HOE combines four functions, serving as a folding mirror, a beamsplitter, an aberration correction element, and a servo-signal generation device, which are generally required for a conventional optical pickup head (OPH). It greatly simplifies the system complication and assembly procedure of an OPH. Simulations give the satisfactory results and show the feasibility for realizing a high-density SFF OPH with a simple and compact configuration.
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Hsi-Fu Shih, Hsi-Fu Shih, Yuan-Chin Lee, Yuan-Chin Lee, Yi Chiu, Yi Chiu, Gung-Ding Lin, Gung-Ding Lin, } "Optical head design using prism-type holographic optical element for small form factor applications", Proc. SPIE 6827, Quantum Optics, Optical Data Storage, and Advanced Microlithography, 682716 (24 January 2008); doi: 10.1117/12.758181; https://doi.org/10.1117/12.758181
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