Journal article
A quantum-well waveguide photodetector for high-precision wavelength monitoring about 1.55 μm
Abstract
A two-segment InGaAsP rib waveguide photodetector is shown to function as a high resolution wavelength monitor in the 1.55-μm spectral region. For two in-line detector elements, the ratio of photocurrents produced is a sensitive function of the input wavelength near the material's absorption edge. This ratio varies rapidly with wavelength over a range from 1.53 to 1.565 μm and is independent of the optical input power. By utilizing the quantum …
Authors
Densmore A; Jessop PE
Journal
IEEE Photonics Technology Letters, Vol. 11, No. 12, pp. 1653–1655
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Publication Date
December 1, 1999
DOI
10.1109/68.806877
ISSN
1041-1135