Broadband operation of coupled-stripe multiple quantum well AlGaAs laser diodes

Epler, J. E.; Jackson, G. S.; Holonyak, N.; Thornton, R. L.; Burnham, R. D.; Paoli, T. L.
October 1985
Applied Physics Letters;10/15/1985, Vol. 47 Issue 8, p779
Academic Journal
A recently developed AlGaAs multiple stripe, multiple quantum well superluminescence light-emitting diode (SLED) with an extremely low reflectivity front-facet coating is operated as a high-power laser in an external grating cavity over an unusually broad tuning range. The SLED diode is operated continuously (cw) in a tuning range Δhω∼94 meV and a power output from the grating cavity of 75 mW (optical flux ∼500 mW within the compound cavity). Data are presented showing the output power as a function of wavelength at currents of 750 mA (7660 Å<λ<8040 Å) and 1.0 A (7620 Å<λ<8085 Å). The threshold current in pulsed laser operation is measured over a range of 130 meV.


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