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Scanning photoluminescence technique to determine the phase of the grating at the facets of gain-coupled DFB's

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3 Author(s)
Adams, D.M. ; Adv. Technol. Lab., Nortel Technol., Ottawa, Ont., Canada ; Cassidy, Daniel T. ; Bruce, Douglas M.

We demonstrate a rapid, nondestructive scanning photoluminescence (PL) technique for the determination of the phase of the grating at the cleaved or coated facets of “in-phase” gain-coupled distributed feedback lasers. The measured phases of the grating at the cleaved facets of a bar of lasers are found to be consistent with experimental measurements of laser performance

Published in:

Quantum Electronics, IEEE Journal of  (Volume:32 ,  Issue: 7 )