Low-loss, single-mode GaAs/AlGaAs waveguides with large core thickness
AD Ferguson, A Kuver, JM Heaton, Y Zhou… - IEE Proceedings …, 2006 - IET
IEE Proceedings-Optoelectronics, 2006•IET
Low-loss, single-mode waveguides with a large core thickness have been designed and
fabricated in gallium arsenide/aluminium gallium arsenide waveguides. Detailed beam
propagation method simulations were carried out to investigate the modal properties of the
waveguides and were compared with measured results. For lengths of 2 cm, insertion losses
of≤ 3.5 dB were achieved when coupled to conical lensed fibre. This demonstrates a simple
method of achieving minimal coupling losses without the need for complex structures such …
fabricated in gallium arsenide/aluminium gallium arsenide waveguides. Detailed beam
propagation method simulations were carried out to investigate the modal properties of the
waveguides and were compared with measured results. For lengths of 2 cm, insertion losses
of≤ 3.5 dB were achieved when coupled to conical lensed fibre. This demonstrates a simple
method of achieving minimal coupling losses without the need for complex structures such …
Low-loss, single-mode waveguides with a large core thickness have been designed and fabricated in gallium arsenide/aluminium gallium arsenide waveguides. Detailed beam propagation method simulations were carried out to investigate the modal properties of the waveguides and were compared with measured results. For lengths of 2 cm, insertion losses of ≤3.5 dB were achieved when coupled to conical lensed fibre. This demonstrates a simple method of achieving minimal coupling losses without the need for complex structures such as waveguide tapers. In addition, the propagation loss was measured to have a low value of 0.2±0.09 dB/cm.
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