title: Coherence collapse and low-frequency fluctuations in quantum-dash based lasers emitting at 1.57 mum.
abstract: Optical feedback tolerance is experimentally investigated on a 600-mum-long quantum-dash based Fabry-Pérot laser emitting at 1.57mum. While quantum-dashes are structurally intermediate to quantum-wells and quantum-dots, the observed behaviour is distinctly like that of a quantum-well based laser but with greater stability. Coherence collapse and low-frequency fluctuation regimes are observed and are reported here. The onset of the coherence collapse regime is experimentally determined and is found to vary from -29 dB to -21 dB external feedback level when increasing the current from twice to nine times the threshold current.
authors: S
authors: S
authors: Azouigui
authors: B
authors: B
authors: Kelleher
authors: S P
authors: SP
authors: Hegarty
authors: G
authors: G
authors: Huyet
authors: B
authors: B
authors: Dagens
authors: F
authors: F
authors: Lelarge
authors: A
authors: A
authors: Accard
authors: D
authors: D
authors: Make
authors: O
authors: O
authors: Le Gouezigou
authors: K
authors: K
authors: Merghem
authors: A
authors: A
authors: Martinez
authors: Q
authors: Q
authors: Zou
authors: A
authors: A
authors: Ramdane