An analysis of the quantum noise in distributed-feedback lasers based on the Fokker–Planck equation has been developed to take into account the nonorthogonal nature of the laser modes. We have obtained numerical results of the steady-state solution of the single-mode operation that reveal the difference between the standard approach orthogonal laser modes and the realistic model (mode nonorthogonality included) for a distributed-feedback laser with nonvanishing end reflectivity and the complex coupling coefficient.
© 1994 Optical Society of America
Original Manuscript: April 4, 1994
Published: August 15, 1994
Anna Tyszka-Zawadzka, Paweł Szczepański, and Wiesław Woliński, "Effect of mode nonorthogonality in distributed-feedback lasers," Opt. Lett. 19, 1222-1224 (1994)