fs photon-number squeezed light generation in a semiconductor waveguide via spectral filtering

• Published in: Quantum Electronics and Laser Science Conference (QELS 2000). Technical Digest. Postconference Edition. TOPS Vol.40 (IEEE Cat. No.00CH37089) pp. 21 - 22
• Main Authors: Ward, M.B., Kastner, B., Ju, H., Schucan, G.-M., Ryan, J.F., Fox, A.M., Aitchison, J.S., Ironside, C.N.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 2000
• Subjects: Absorption; Filtering; Optical fiber filters; Optical fibers; Optical propagation; Optical pulse generation; Optical pulses; Optical waveguides; Planar waveguides; Semiconductor waveguides
• ISBN: 1557526087; 9781557526083
• ISSN: 1094-5695

Summary form only given. Several experiments have been performed in optical fibers to generate photon-number squeezed pulses of light. Among these, are experiments employing a spectral filter to exploit the spectral correlations created during pulse propagation along a fiber. We recently reported the generation of photon-number squeezing in an AlGaAs waveguide as a result of multi-photon absorption and we now extend this work to show an increase in the degree of squeezing obtained with appropriate spectral filtering. Unlike much of the fiber work, which used long propagation distances, the results here are produced in a 2-mm-long semiconductor waveguide. The waveguide structure is composed of AlGaAs grown on a GaAs substrate and consisted of a l /spl mu/mm planar high-index waveguiding layer with lateral confinement provided by a surface rib. The estimated effective modal area is 6 /spl mu/m/sup 2/.