Er-doped fiber ring laser gyroscopes operating in continuous waves

• 作 者: 钱景仁 苏觉 王许旭 朱冰
• 机 构: Department of Electronics Engineering and Information Science University of Science and Technology o
• 出 处: Chinese Optics Letters
• 发表日期: 2007年04期
• 关键词: bidirectional inserted eliminate rotation eigen lasing longitudinal resonator tu

A direction related polarizer was inserted into a ring laser cavity to eliminate one of the two eigen-modes as well as spatial hole burning of the gain medium in a bidirectional Er-doped fiber ring laser.Thus,a fiber ring laser gyroscope (FRLG) operating in continuous wave was demonstrated.A beat signal of over 30-dB noise was observed and a good linear relation between the beat frequency shift and cavity rotation rate was obtained.

A direction related polarizer was inserted into a ring laser cavity to eliminate one of the two eigen-modes as well as spatial hole burning of the gain medium in a bidirectional Er-doped fiber ring laser. Thus, a fiber ring laser gyroscope (FRLG) operating in continuous wave was demonstrated. A beat signal of over 30-dB noise was observed and a good linear relation between the beat frequency shift and cavity rotation rate was obtained.