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External cavity quantum dot laser with a tuning range of
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View: Figures


Image of FIG. 1.
FIG. 1.

Spectra of the EC laser displaying the peak linearly tuned (full circles) in wavelength with the angular position of the blazed grating. The LD had a length of and a width of . Simultaneously, spontaneous emission of the QD ensemble emerges.

Image of FIG. 2.
FIG. 2.

curve of the EC laser at demonstrating a similar behavior to the uncoated LD by itself. The LD of Fig. 1 was used here. The inset shows the external differential quantum efficiency and the series resistance as a function of laser wavelength.

Image of FIG. 3.
FIG. 3.

Threshold current density as a function of laser wavelength for different LD lengths and widths as denoted by the different symbols. An upper limit for the injected current has been set to to avoid damaging the LD.

Image of FIG. 4.
FIG. 4.

Tuning range of the EC laser as a function of LD width for two different lengths. The error bars denote the inaccuracy of the individual experiment, since at most only two LDs have been measured for each case. Black lines are guides for the eye.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: External cavity InAs∕InP quantum dot laser with a tuning range of 166nm