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Proceedings Paper

Transparent waveguides for WDM transmitter arrays using quantum well shape modification
Author(s): Philip J. Poole; Margaret Buchanan; Geof C. Aers; Zbigniew R. Wasilewski; Michael M. Dion; Mahmoud Fallahi; Jian Jun He; N. Sylvain Charbonneau; Emil S. Koteles; Ian V. Mitchell; Richard D. Goldberg
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Paper Abstract

A technique for fabricating transparent waveguides on the same wafer as a quantum well (QW) DBR laser array has been developed. High [MeV] energy ion implantation is used to create a large number of vacancies and interstitials throughout the active region of the device. Upon annealing, these entities enhance the intermixing of the QW and barrier materials resulting in a blue shift of the QW bandgap. Energy shifts (measured using low temperature photoluminescence spectroscopy) of greater than 60 meV can be achieved. Room temperature waveguide absorption measurements verify the shift in the bandgap energy and confirm that the waveguide is now effectively transparent in the wavelength range of the QW lasers. This technique is being used in an eight wavelength WDM transmitter array in which the waveguiding region is selectively implanted and blue shifted.

Paper Details

Date Published: 23 March 1995
PDF: 8 pages
Proc. SPIE 2402, Components for Wavelength Division Multiplexing, (23 March 1995); doi: 10.1117/12.205273
Show Author Affiliations
Philip J. Poole, National Research Council of Canada (Canada)
Margaret Buchanan, National Research Council of Canada (Canada)
Geof C. Aers, National Research Council of Canada (Canada)
Zbigniew R. Wasilewski, National Research Council of Canada (Canada)
Michael M. Dion, National Research Council of Canada (Canada)
Mahmoud Fallahi, National Research Council of Canada (Canada)
Jian Jun He, National Research Council of Canada (Canada)
N. Sylvain Charbonneau, National Research Council of Canada (Canada)
Emil S. Koteles, National Research Council of Canada (Canada)
Ian V. Mitchell, Univ. of Western Ontario (Canada)
Richard D. Goldberg, Univ. of Western Ontario (Canada)


Published in SPIE Proceedings Vol. 2402:
Components for Wavelength Division Multiplexing
Emil S. Koteles, Editor(s)

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