High-power GaInAs strained quantum well lasers with an emission wavelength of 0.98 mu m, suitable for Er3+-doped fibre amplifier pumping, have been fabricated. A threshold current of 15 mA and a peak output power as high as 85 mW have been obtained for the ridge waveguide structure with AR/HR facet coating. Highly efficient pumping for the 1.536 mu m signals has been confirmed.
Published in:
Electronics Letters
(Volume:25
,
Issue:
23
)
Date of Publication: 9 Nov. 1989