The influence of feedback intensity on longitudinal mode properties and optical noise in index-guided semiconductor lasers

Theory and experiments on optical feedback effects in index-guided single-mode semiconductor lasers are presented. Evidence is found for the existence of a characteristic parameter C which indicates the relative strength of the optical feedback. Near the transition ( C \approx 1.0 ) from low to high feedback, the feedback-induced low-frequency intensity noise shows a maximum. At higher feedback hysteresis and instabilities are dominant, whereas the feedback-induced noise is low again.

[1]  Phase noise characteristics of single mode semiconductor lasers with optical feedback , 1984 .

[2]  G. Acket,et al.  Low-frequency mode-hopping optical noise in AlGaAs channeled substrate lasers induced by optical feedback , 1983 .

[3]  H. Salemink,et al.  Optical stability of narrow stripe, proton‐isolated AlGaAs double heterostructure lasers with gain guiding , 1983 .

[4]  S. Saito,et al.  Spectral linewidth reduction in semiconductor lasers by an external cavity with weak optical feedback , 1983 .

[5]  B. Tromborg,et al.  Experimental investigation of stability properties for a semiconductor laser with optical feedback , 1983 .

[6]  R. Lang,et al.  External optical feedback effects on semiconductor injection laser properties , 1980 .

[7]  Osamu Hirota,et al.  Noise properties of injection lasers due to reflected waves , 1979 .

[8]  Naoki Chinone,et al.  Transverse mode stabilized Al x Ga 1-x As injection lasers with channeled-substrate-planar structure , 1978 .

[9]  Alan B. Tveten,et al.  Feedback‐induced line broadening in cw channel‐substrate planar laser diodes , 1980 .

[10]  K. Vahala,et al.  Measurement of the linewidth enhancement factor α of semiconductor lasers , 1983 .

[11]  Alan B. Tveten,et al.  Low-frequency noise characteristics of channel substrate planar GaAlAs laser diodes , 1981 .

[12]  Daan Lenstra,et al.  Theory of a single-mode laser with weak optical feedback , 1983 .

[13]  Influence of an external cavity on semiconductor laser phase noise , 1983 .

[14]  J. Osmundsen,et al.  Influence of optical feedback on laser frequency spectrum and threshold conditions , 1983 .

[15]  Y. Yamamoto,et al.  Oscillation center frequency tuning, quantum FM noise, and direct frequency characteristics in external grating loaded semiconductor lasers , 1982 .