Locking range, phase noise and power spectrum of an injection-locked semiconductor laser

The locking range of an optically injected semiconductor laser is discussed, including the spectral hole burning and lateral carrier diffusion effects. These effects are modelled with a gain suppression coefficient. In addition, an expression for the mean square phase jitter of an injection-locked semiconductor laser is derived when these effects are insignificant. The power spectrum of a locked laser is obtained and compared with experimental results.