The chacterictics of Diode Laser and it’s application in Holography

• Main Authors: Lai Jian-Hung, 賴建宏
• Other Authors: Shei Hung-Jung
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/73198603806542794762

碩士 === 中華技術學院 === 機電光工程研究所碩士班 === 94 === The lighting characteristics with the self-made diode laser are discussed in this research, and compared with the He-Ne laser which has high coherent light. It is found that the He-Ne laser surpasses the diode laser in coherence length and divergence angle, however the diode Laser still has the advantage of the high brightness and low cost. In inquiring into the influence of the temperature upon the diode laser power, its the most high power is 5.2 mW and down quickly under the diode laser adding not any metal tube for spreading heat and focusing. When laser diode is added a metal tube after focusing, the power has been maintaining in the 18 mW, and display very stable. The holographic films used in this research are made in China , in the course of making, a lot of parameters exist, such as temperature, the skew amount of wavelength of humidity is controlled. Mutual influence, all unable to come to consider independently, in the experiment course, enable it to reach the good one in time for exposure , make the environment temperature around not know difference too big again, in accordance with proper developing time and stopping shadow time finally , make the good one into quality all like the diffraction component , and to the whole characteristic and process , act as relevant improvement in accordance with his result afterwards of holography.