Title :
Observations of quantum switch
Author :
Ham, B.S. ; Hemmer, H.R.
Author_Institution :
Center for Quantum Coherence & Ultrafast Inf. Commun., Electron. & Telecommun. Res. Inst., Daejon, South Korea
Abstract :
Summary form only given. Analysis of the physics of current optical switching techniques shows that the possible switching speed is less than THz even if one may use intersubband transitions of semiconductor quantum wells. The author demonstrates that the switching speed can be faster than the population relaxation time T/sub 1/ when quantum coherence is utilized. The observation of optical switching time is ten times faster than the population decay time. A spectral hole-burning crystal of Pr/sup 3+/ doped Y/sub 2/SiO/sub 5/ (Pr:YSO) is used for an initial experimental demonstration.
Keywords :
light coherence; optical hole burning; optical switches; praseodymium; quantum optics; yttrium compounds; Y/sub 2/SiO/sub 5/:Pr/sup 3+/; Y/sub 2/SiO/sub 5/:Pr/sup 3+/ spectral hole-burning crystal; dark resonance annihilation; dark resonance creation; four-level system; optical switching techniques; population decay time; population relaxation time; quantum coherence; quantum switch; switching speed; Optical hole burning; Optical switches; Praseodymium; Yttrium compounds;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-708-3
DOI :
10.1109/QELS.2002.1031296
