Tunable ultraslow light in vertical-cavity surface-emitting laser amplifier. Academic Article uri icon


  • We report the experimental demonstration of tunable ultraslow light using a 1.55 um vertical-cavity surface-emitting laser (VCSEL) at room temperature. By varying the bias current around lasing threshold, we achieve tunable delay of an intensity modulated signal input. Delays up to 100 ps are measured for a broadband signal with modulation frequency of 2.8 GHz. With a VCSEL design optimized for amplification and leveraging the scalability of VCSEL arrays, delays of multiple modulation periods are feasible.

published proceedings

  • Opt Express

author list (cited authors)

  • Zhao, X., Palinginis, P., Pesala, B., Chang-Hasnain, C., & Hemmer, P.

citation count

  • 67

complete list of authors

  • Zhao, Xiaoxue||Palinginis, Phedon||Pesala, Bala||Chang-Hasnain, Connie||Hemmer, Philip

publication date

  • October 2005