Abstract
Low-frequency fluctuations (LLFs) in semiconductor lasers subject to time-delayed optical feedback from external reflectors have been experimentally observed and theoretically studied for the past two decades. Yet recently a question has come into focus: whether these fluctuations are only a transient phenomenon. This Letter addresses this issue from the viewpoint of deterministic chaotic transitions. In particular, we investigate the single-mode single-delay Lang-Kobayashi equations by constructing a scheme that allows for a detailed bifurcation analysis and, consequently, an understanding of the coexistence of LFFs and stable emission on the maximum gain mode, the latter's being the subject of recent experiments [Phys. Rev. A 60 (1999) 634]. Our computations suggest that LFFs can be either transient or sustained, depending on the dynamical interplay between the maximum gain mode and a chaotic set. (C) 2000 Elsevier Science B.V. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 350-356 |
| Number of pages | 7 |
| Journal | Physics Letters A |
| Volume | 267 |
| Issue number | 5-6 |
| Publication status | Published - 27 Mar 2000 |
Keywords
- WEAK OPTICAL FEEDBACK
- COHERENCE COLLAPSE
- CHAOTIC ITINERANCY
- INSTABILITY
- BIFURCATION
- ATTRACTORS
- LINEWIDTH
- SUBJECT
- LANG
- MODE
Cite this
Dynamical origin of low frequency fluctuations in external cavity semiconductor lasers. / Davidchack, R L ; Lai, Y C ; Gavrielides, A ; Kovanis, V ; Lai, Ying-Cheng.
In: Physics Letters A, Vol. 267, No. 5-6, 27.03.2000, p. 350-356.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Dynamical origin of low frequency fluctuations in external cavity semiconductor lasers
AU - Davidchack, R L
AU - Lai, Y C
AU - Gavrielides, A
AU - Kovanis, V
AU - Lai, Ying-Cheng
PY - 2000/3/27
Y1 - 2000/3/27
N2 - Low-frequency fluctuations (LLFs) in semiconductor lasers subject to time-delayed optical feedback from external reflectors have been experimentally observed and theoretically studied for the past two decades. Yet recently a question has come into focus: whether these fluctuations are only a transient phenomenon. This Letter addresses this issue from the viewpoint of deterministic chaotic transitions. In particular, we investigate the single-mode single-delay Lang-Kobayashi equations by constructing a scheme that allows for a detailed bifurcation analysis and, consequently, an understanding of the coexistence of LFFs and stable emission on the maximum gain mode, the latter's being the subject of recent experiments [Phys. Rev. A 60 (1999) 634]. Our computations suggest that LFFs can be either transient or sustained, depending on the dynamical interplay between the maximum gain mode and a chaotic set. (C) 2000 Elsevier Science B.V. All rights reserved.
AB - Low-frequency fluctuations (LLFs) in semiconductor lasers subject to time-delayed optical feedback from external reflectors have been experimentally observed and theoretically studied for the past two decades. Yet recently a question has come into focus: whether these fluctuations are only a transient phenomenon. This Letter addresses this issue from the viewpoint of deterministic chaotic transitions. In particular, we investigate the single-mode single-delay Lang-Kobayashi equations by constructing a scheme that allows for a detailed bifurcation analysis and, consequently, an understanding of the coexistence of LFFs and stable emission on the maximum gain mode, the latter's being the subject of recent experiments [Phys. Rev. A 60 (1999) 634]. Our computations suggest that LFFs can be either transient or sustained, depending on the dynamical interplay between the maximum gain mode and a chaotic set. (C) 2000 Elsevier Science B.V. All rights reserved.
KW - WEAK OPTICAL FEEDBACK
KW - COHERENCE COLLAPSE
KW - CHAOTIC ITINERANCY
KW - INSTABILITY
KW - BIFURCATION
KW - ATTRACTORS
KW - LINEWIDTH
KW - SUBJECT
KW - LANG
KW - MODE
M3 - Article
VL - 267
SP - 350
EP - 356
JO - Physics Letters A
JF - Physics Letters A
SN - 0375-9601
IS - 5-6
ER -