1991/04/01 by L.B. Mercer, Linden B. Mercer · 1 citation
Engineering · Physics and Astronomy · #Semiconductor Lasers and Optical Devices #Photonic and Optical Devices #Advanced Fiber Laser Technologies
paper · doi:10.1109/50.76663
The effects of a 1/f frequency noise on self-heterodyne detection are described, and the results are applied to the problem of laser diode linewidth measurement. The self-heterodyne autocorrelation function and power spectrum are evaluated for both the white and the 1/f components of the frequency noise. From numerical analysis, the power spectrum resulting from the 1/f frequency noise is shown to be approximately Gaussian, and an empirical expression is given for its linewidth. These results are applied to the problem of self-heterodyne linewidth measurements for coherent optical communications, and the amount of broadening due to 1/f frequency noise is predicted.>