Refractive index, capture rate and sensitivity of quantum dot lasers to optical feedback
- Resource Type
- Conference
- Authors
- Huyet, G.; O'Brien, D.; Carroll, O.; Hegarty, S.; Houlihan, J.; McInerney, J.C.; Muszalski, J.; Corbett, B.; Uskov, A.V.
- Source
- The 17th Annual Meeting of the IEEELasers and Electro-Optics Society, 2004. LEOS 2004. LEOS annual meeting Lasers and Electro-Optics Society, 2004. LEOS 2004. The 17th Annual Meeting of the IEEE. 2:689-690 Vol.2 2004
- Subject
- Photonics and Electrooptics
Components, Circuits, Devices and Systems
Quantum dot lasers
Refractive index
Laser feedback
Optical feedback
Laser noise
Quantum well lasers
Semiconductor lasers
Optical noise
Semiconductor device noise
Noise measurement
- Language
The line-width enhancement factor and the relative intensity noise spectrum of quantum dot semiconductor lasers were measured. The sensitivity to optical feedback of quantum dot semiconductor lasers was compared to quantum well semiconductor lasers. A reduced sensitivity of 20 dB compared to quantum well semiconductor lasers was observed. Rate equations describing the capture of carriers from the quantum well into the dots was used as basis in providing an explanation for the reduced sensitivity to optical feedback.