| Original Articles |
|
|
|
|
Slowdown of Group Velocity of Light Using Coherent Population Oscillation |
| QIU Wei;ZHANG Yun-Dong;YE Jian-Bo;WANG Nan;WANG Jin-Fang;TIAN He;YUAN Ping |
| National Key Laboratory of Tunable Laser Technology, Institute of Opto-electronics, Harbin Institute of Technology, Harbin 150080 |
|
| Cite this article: |
|
QIU Wei, ZHANG Yun-Dong, YE Jian-Bo et al 2008 Chin. Phys. Lett. 25 489-492 |
|
|
|
|
Abstract We investigate the reduction of the group velocity propagation resulting from the steep change of the refractive index by the coherent population oscillation in erbium-doped optical fibre. The largest delay is measured to be about 8.75ms corresponding to a group index of 1.312×106. The time delay or advancement depends on the pump intensity. Influences of the ion density on the fractional delay and the group velocity reduction of light propagation are studied. Based on our discussion the optimization parameters should be selected in order to obtain more appropriate time delay and the slowdown of group velocity.
|
| Keywords:
42.25.Bs
78.20.Bh
42.70.Nq
|
|
|
Received: 10 July 2007
Published: 30 January 2008
|
|
| PACS: |
42.25.Bs
|
(Wave propagation, transmission and absorption)
|
| |
78.20.Bh
|
(Theory, models, and numerical simulation)
|
| |
42.70.Nq
|
(Other nonlinear optical materials; photorefractive and semiconductor materials)
|
|
|
|
|
|
[1] Harris S E 1997 Phys. Today 50 36
[2] Boller K J, Imamoglu A and Harris S E 1991 Phys. Rev.Lett. 66 2593
[3] Hau L V, Harris S E, Dutton Z and Behroozi C H 1999 Nature 397 594
[4] Kash M M, Sautenkov V A and Zibrov A S 1999 Phys.Rev. Lett. 82 825229
[5] Lin S H, Hsu K Y and Yeh P 2000 Opt. Lett. 251582
[6] Phillips D F and Fleischhauer A 2001 Phys. Rev.Lett. 29 783
[7] Podivilov E and Sturman B 2003 Phys. Rev. Lett. 91 083902-1
[8] Wang L J, Kuzmich A and Dogariu A 2000 Nature 406 277
[9] Bigelow M S, Lepeshkin N N and Boyd R W 2003 Science 301 200
[10] Schweinsberg A, Lepeshkin N N and Bigelow M S 2006 Europhys. Lett. 73 218
[11] Akulshin A M and Cimmino A 2002 Quantum Electron. 32 567
[12] Bigelow M S, Lepeshkin N N and Boyd R W 2003 Phys.Rev. Lett. 90 113903-1
[13] Turukhin A V and Sudarshanam V S 2002 Phys. Rev.Lett. 88 023602-1
[14] Stephanie N and Richard G 2002 J. LightwaveTechnol. 20 986 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
