Linewidth Enhancement Factor and Dynamical Response of an Injection-Locked Quantum-Dot Fabry-Perot Laser at 1310nm
Identifieur interne : 003D84 ( Main/Repository ); précédent : 003D83; suivant : 003D85Linewidth Enhancement Factor and Dynamical Response of an Injection-Locked Quantum-Dot Fabry-Perot Laser at 1310nm
Auteurs : RBID : Pascal:10-0430704Descripteurs français
- Pascal (Inist)
- Verrouillage injection, Courant seuil, Résonateur Fabry Pérot, Diode laser, Point quantique, Composé ternaire, Gallium Arséniure, Indium Arséniure, Composé binaire, Elargissement raie, Laser semiconducteur, InAs/InGaAs, InGaAs, InAs, As Ga In, As In, 0130C, 4255P, Equation bilan transfert énergie, Dispositif point quantique, Photonique.
English descriptors
- KwdEn :
Abstract
This work investigates the linewidth enhancement factor (alpha-factor) and stability of an optically-injected InAs/InGaAs quantum-dot Fabry-Perot laser. Using the injection-locking technique, the above threshold alpha-factor is measured to be as low as 0.6 at 1.3X the threshold current. The below threshold alpha-factor is also measured using the Hakki-Paoli technique. The measured alpha-factor values are used to simulate the dynamic response (stable locking, period-one, period-doubling, or chaos) in the context of single-mode rate equations under zero-detuning injection conditions for external injected power ratios ranging from -11 dB to +1 5dB and slave current bias levels of 1.3X, 2X, and 2.6X threshold. Legacy literature has shown that optically-injected diode lasers typically follow the period-doubling route into a chaotic region as the injection level is increased. Simulations show that at 2X the threshold current, a small region of period-one operation will be observed followed by stable-locking as the injection ratio is increased. This predominantly stable behavior is driven largely by the low alpha-factor. Experimental results support this prediction, where under zero-detuning conditions, only unlocked and stable-locking operation is observed. Experimentally, period-one operation was not observed at a slave laser bias current of 2X threshold, as it was predicted to occur below an external power ratio of -20 dB, a level which was not attainable in this work. Such findings suggest that a quantum-dot device can be employed in an optically-injected configuration for photonic tunable-clock applications.
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<author><name sortKey="Pochet, M" uniqKey="Pochet M">M. Pochet</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for High Technology Materials, University of New Mexico</s1>
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<author><name sortKey="Naderi, N A" uniqKey="Naderi N">N. A. Naderi</name>
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<author><name sortKey="Terry, N" uniqKey="Terry N">N. Terry</name>
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<author><name sortKey="Kovanis, V" uniqKey="Kovanis V">V. Kovanis</name>
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<author><name sortKey="Lester, L F" uniqKey="Lester L">L. F. Lester</name>
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<term>Fabry-Perot resonators</term>
<term>Gallium Arsenides</term>
<term>Indium Arsenides</term>
<term>Injection locking</term>
<term>Laser diodes</term>
<term>Line broadening</term>
<term>Photonics</term>
<term>Quantum dot devices</term>
<term>Quantum dots</term>
<term>Rate equation</term>
<term>Semiconductor lasers</term>
<term>Ternary compounds</term>
<term>Threshold current</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Verrouillage injection</term>
<term>Courant seuil</term>
<term>Résonateur Fabry Pérot</term>
<term>Diode laser</term>
<term>Point quantique</term>
<term>Composé ternaire</term>
<term>Gallium Arséniure</term>
<term>Indium Arséniure</term>
<term>Composé binaire</term>
<term>Elargissement raie</term>
<term>Laser semiconducteur</term>
<term>InAs/InGaAs</term>
<term>InGaAs</term>
<term>InAs</term>
<term>As Ga In</term>
<term>As In</term>
<term>0130C</term>
<term>4255P</term>
<term>Equation bilan transfert énergie</term>
<term>Dispositif point quantique</term>
<term>Photonique</term>
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<front><div type="abstract" xml:lang="en">This work investigates the linewidth enhancement factor (alpha-factor) and stability of an optically-injected InAs/InGaAs quantum-dot Fabry-Perot laser. Using the injection-locking technique, the above threshold alpha-factor is measured to be as low as 0.6 at 1.3X the threshold current. The below threshold alpha-factor is also measured using the Hakki-Paoli technique. The measured alpha-factor values are used to simulate the dynamic response (stable locking, period-one, period-doubling, or chaos) in the context of single-mode rate equations under zero-detuning injection conditions for external injected power ratios ranging from -11 dB to +1 5dB and slave current bias levels of 1.3X, 2X, and 2.6X threshold. Legacy literature has shown that optically-injected diode lasers typically follow the period-doubling route into a chaotic region as the injection level is increased. Simulations show that at 2X the threshold current, a small region of period-one operation will be observed followed by stable-locking as the injection ratio is increased. This predominantly stable behavior is driven largely by the low alpha-factor. Experimental results support this prediction, where under zero-detuning conditions, only unlocked and stable-locking operation is observed. Experimentally, period-one operation was not observed at a slave laser bias current of 2X threshold, as it was predicted to occur below an external power ratio of -20 dB, a level which was not attainable in this work. Such findings suggest that a quantum-dot device can be employed in an optically-injected configuration for photonic tunable-clock applications.</div>
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<fC01 i1="01" l="ENG"><s0>This work investigates the linewidth enhancement factor (alpha-factor) and stability of an optically-injected InAs/InGaAs quantum-dot Fabry-Perot laser. Using the injection-locking technique, the above threshold alpha-factor is measured to be as low as 0.6 at 1.3X the threshold current. The below threshold alpha-factor is also measured using the Hakki-Paoli technique. The measured alpha-factor values are used to simulate the dynamic response (stable locking, period-one, period-doubling, or chaos) in the context of single-mode rate equations under zero-detuning injection conditions for external injected power ratios ranging from -11 dB to +1 5dB and slave current bias levels of 1.3X, 2X, and 2.6X threshold. Legacy literature has shown that optically-injected diode lasers typically follow the period-doubling route into a chaotic region as the injection level is increased. Simulations show that at 2X the threshold current, a small region of period-one operation will be observed followed by stable-locking as the injection ratio is increased. This predominantly stable behavior is driven largely by the low alpha-factor. Experimental results support this prediction, where under zero-detuning conditions, only unlocked and stable-locking operation is observed. Experimentally, period-one operation was not observed at a slave laser bias current of 2X threshold, as it was predicted to occur below an external power ratio of -20 dB, a level which was not attainable in this work. Such findings suggest that a quantum-dot device can be employed in an optically-injected configuration for photonic tunable-clock applications.</s0>
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<s5>03</s5>
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<s2>NC</s2>
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<s5>53</s5>
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<s5>61</s5>
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<s5>62</s5>
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<s4>INC</s4>
<s5>71</s5>
</fC03>
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<s4>INC</s4>
<s5>75</s5>
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<s4>INC</s4>
<s5>76</s5>
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<s4>INC</s4>
<s5>77</s5>
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<s5>83</s5>
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<s5>91</s5>
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