Tolerance Analyses of Planar Pickups with FiberLens and SIL

• Main Authors: Chi Chin Lee, 李其致
• Other Authors: Han-Ping D. Shieh
• Format: Others
• Language: en_US
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/83810452482086786717

碩士 === 國立交通大學 === 光電工程系所 === 92 === The fiber-based optical pickup has two advantages. The large reduction in weight of the moving part allows higher speed operation. Another advantage is that an optical isolator can be easily inserted between the LD and the fiber to stabilize the lasing. The limitation of fiber-base pickup head is that NA is too small, thus, large spot size. The solid immersion lens (SIL) is added into the planar fiber-base pickup head for increasing NA. The objective of thesis is to design the system, analyze the tolerance in fabrication and assembly process, and demonstrate the feasibility of integrating fiber-base pick-up head. The first part of thesis is to design the system, analyze the tolerance in fabrication and assembly process. The second part is to describe the fabrication process and set up the measurement system. According to the measurement system, the performances of fiberlens and fiberlens plus SIL were measured. From these results, the differents between measurement and simulation were analyzed.