980 nm spread index laser with strain compensated InGaAs/GaAsP/InGaP and 90% fibre coupling efficiency
- 1 January 1996
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 32 (11), 1007-1008
- https://doi.org/10.1049/el:19960629
Abstract
Single transverse and lateral mode InGaAs/GaAsP/InGaP 980 nm SPIN (spread index) ridge waveguide lasers (3 µm × 750 µm) with symmetric far fields of thetas⊥ × thetas|| = 17° × 15°, slope efficiency of ηext = 0.9 W/A and threshold current of Ith = 24 mA have been demonstrated. 90% coupling to singlemode lensed fibre and 52% direct buttcoupling to cleaved fibre has been achieved.Keywords
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