Accurate wavelength spacing from absorption-coupled DFB laser arrays

Six-element absorption-coupled distributed-feedback (DFB) arrays have been fabricated by means of holographic lithography. Using a simple current injection scheme in two-section devices, a standard deviation of 0.11 nm from a uniform wavelength channel spacing of 2 nm has been achieved. This value i...

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Bibliographic Details
Published in:IEEE photonics technology letters 1997-10, Vol.9 (10), p.1316-1318
Main Authors: Talneau, A., Bouadma, N., Slempkes, S., Ougazzaden, A., Hansmann, S.
Format: Article
Language:English
Subjects:
Distributed feedback devices
Etching
Gratings
Holography
Indium phosphide
Lithography
Optical arrays
Resists
Semiconductor laser arrays
Surface emitting lasers
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Summary:Six-element absorption-coupled distributed-feedback (DFB) arrays have been fabricated by means of holographic lithography. Using a simple current injection scheme in two-section devices, a standard deviation of 0.11 nm from a uniform wavelength channel spacing of 2 nm has been achieved. This value is easily obtained using standard lithography technologies for fabrication, and coarse current control for operation. It allows the use of complex-coupled DPB lasers as sources in photonic integrated circuits.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.623248