Fiber optic gyroscope.Process and system to improve the stability and the width of the line of the spectrum of a diode laser and process for application of light of a laser diode to an optical fiber gyro

摘要

"Gyroscope with fiber optics.Process and system to improve the stability and the width of the line of the spectrum of a diode laser and process for application of light of a laser diode to an optical fiber gyro.There are provided a system and a process for improving the width of line and the stability of the spectrum during the use of a region emitting laser light source of a conventional diOf the laser. The system of the invention and process provide a signal dithering to vary the current to control a light source of a laser diode.Through the variation of current control, the width of the line and the stability of the spectrum of the light source of the diode laser, conventional is improved significantly.Specifically,A gyroscope with optical fiber (10) can be controlled by means of a conventional diode laser source (11) which is fed by a control signal from the dither circuit of the light source (31).