Measurement of spatial modes of broad-area diode lasers with 1-GHz resolution grating spectrometer

A 1-GHz resolution double-pass grating spectroscopy of broad-area diode lasers is performed. Measurements of spatial and spectral distribution of emitting power are performed as a function of pumping current. Results are confronted with the mode structure of gain-guided waveguide. Nonlinear coupling...

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Bibliographic Details
Published in:IEEE photonics technology letters 2006-08, Vol.18 (15), p.1618-1620
Main Authors: Stelmakh, N., Flowers, M.
Format: Article
Language:English
Subjects:
Diffraction gratings
Diode lasers
Distributed feedback devices
Emittance
Gratings
Gratings (spectra)
Joining
Laser cavity resonators
laser diodes
Laser feedback
Laser modes
Lenses
Mirrors
Nonlinearity
Pumping
semiconductor lasers
Spatial resolution
Spectral emittance
Spectroscopy
waveguides
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Summary:A 1-GHz resolution double-pass grating spectroscopy of broad-area diode lasers is performed. Measurements of spatial and spectral distribution of emitting power are performed as a function of pumping current. Results are confronted with the mode structure of gain-guided waveguide. Nonlinear coupling of lateral modes has been observed and quantified
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2006.879514