Low-loss suspended quantum well waveguides

Naval Research Laboratory, Washington, DC 20375, USA.
Optics Express (Impact Factor: 3.49). 03/2008; 16(4):2621-7. DOI: 10.1364/OE.16.002621
Source: PubMed


We have used surface micromachining to fabricate suspended InGaAs/InGaAsP quantum well waveguides that are supported by lateral tethers. The average measured TE propagation loss in our samples is 4.1 dB/cm, and the average measured TE loss per tether pair is 0.21 dB. These measurements are performed at wavelengths in the optical L-band, just 125 nm below the quantum well band gap.

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Available from: Jacob B Khurgin
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