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0. 98 [mu]m InGaAs-InGaAsP-InGaP GRIN-SCH SL-SQW lasers for coupling high optical power into single-mode fiber

Journal Article · · IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States)
DOI:https://doi.org/10.1109/3.234455· OSTI ID:5826382
A CW coupled optical power of 75 mW into a single-mode fiber (SMF) at a driving current of 200 mA was achieved by InGaAs-InGaAsP-InGaP GRIN-SCH SL-SQW ridge waveguide lasers emitting at 0.98 [mu]m. The GRIN-SCH profile was optimized to minimize the series resistance due to spikes at GaAs-InGaP heterointerfaces. The other approach was proposed for high coupling efficiency into the SMF with cutoff wavelength of 0.88 [mu]m: The ridge mesa width was precisely controlled around 2 [mu]m, and an aspect ratio of far-field pattern ([theta][sub [perpendicular]]/[theta][sub [parallel]]) was reduced down to 1.9. As a result, 0.98 [mu]m InGaP cladding lasers show performance comparable to the conventional AlGaAs cladding lasers.
OSTI ID:
5826382
Journal Information:
IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States) Vol. 29:6; ISSN 0018-9197; ISSN IEJQA7
Country of Publication:
United States
Language:
English