Grating-Feedback Diode Laser System and Its Frequency Stabilization

• Main Authors: Chen, Shi-Duen, 陳皙墩
• Other Authors: Shy Jow-Tsong;Ni Wei-Tou
• Format: Others
• Language: zh-TW
• Published: 1993
• Online Access: http://ndltd.ncl.edu.tw/handle/95032180482996838141

碩士 === 國立清華大學 === 物理研究所 === 81 === Using a grating for wavelength-selective optical feedback to a 780 nm diode laser, we not only reduce the laser linewidth, but also increase the tuning range of the wavelength up to 20 nm. The continuous tuning range of the lasing frequency can be larger than 15 kHz. With a proper electrical feedback loop, we have locked the laser frequency to a resonant frequency of a confocal Fabry-Perot interferometer, and have transferred the frequency stability of the confocal Fabry-Perot interferometer to the laser. Preliminary measurement shows that their relative frequency stability is better than 10 kHz.