Title :
Ultra-sensitive all-optical sampling at 1.5 μm using waveguide two-photon absorption
Author :
Thomsen, B.C. ; Barry, L.P. ; Dudley, J.M. ; Harvey, J.D.
Author_Institution :
Dept. of Phys., Auckland Univ., New Zealand
fDate :
8/19/1999 12:00:00 AM
Abstract :
Ultra-sensitive all-optical sampling at 1.5 μm using two-photon-absorption in a commercial 1.3 μm quantum-well semiconductor laser has been demonstrated. Using only direct detection of the unamplified two photon absorption photocurrent, a temporal resolution of ~2 ps and a sensitivity of less than 2 mW2 have been achieved
Keywords :
nonlinear optics; quantum well lasers; two-photon processes; 1.3 micrometre; 1.5 micrometre; direct detection; quantum-well semiconductor laser; sensitivity; temporal resolution; ultra-sensitive all-optical sampling; unamplified two photon absorption photocurrent; waveguide two-photon absorption;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990993
