Wavelength stabilization of a 980-nm semiconductor laser module stabilized with high-power uncooled dual FBG

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2011,（3）
• 页码范围: 57-61
• 页数: 5页
• 语种: 英文
• DOI: 10.3788/COL201109.031403.

摘要

An optimized dual fiber Bragg grating (FBG) is proposed for 980-nm semiconductor lasers without thermoelectric coolers to restrict temperature-induced wavelength shift.The mathematical model of the temperature-induced wavelength shift of the laser with the dual FBG is built using the external cavity feedback rate equations.The external cavity parameters are optimized for achieving the stability mode-locking laser output.The spectral characteristics of the dual FBG stabilized laser are measured to range from 0 to 70 ℃.The side mode suppression ratio (SMSR) is more than 45 dB, while the full-width at half-maximum (FWHM) is less than 1 nm.The peak wavelength shift is less than 0.1 nm.The dual FBG wavelength shift proportional coefficient is between 0.1086 and 0.4342.