Abstract

A tunable slow light of 2.5-Gb/s pseudo-random binary sequence signal using a 1550-nm vertical-cavity surface-emitting laser (VCSEL) is experimentally demonstrated. The influences of the bias current and the gain saturation on the slow light are investigated. With bias current increasing, tunable optical group delay up to 98 ps is obtained at room temperature. Demonstration of the time delay between 16 and 24 ps by signal intensity change is reported. Under an appropriate bias current, by tuning the input signal to track the peak gain wavelength of the VCSEL, slow light of a power penalty as low as 1 dB is achieved. With such a low power penalty, the VCSEL has a great potential application as a compact optical buffer.

© 2011 Chinese Optics Letters

Bandwidth improvement for slow light using amplification characteristics of cascaded vertical-cavity surface-emitting lasers

Y.-N. Ma, B. Luo, L.-S. Yan, W. Pan, X. H. Zou, J. P. Zhao, N. Q. Li, and X. K. Liu
Opt. Lett. 38(3) 308-310 (2013)

Tunable ultraslow light in vertical-cavity surface-emitting laser amplifier

Xiaoxue Zhao, Phedon Palinginis, Bala Pesala, Connie J. Chang-Hasnain, and Philip Hemmer
Opt. Express 13(20) 7899-7904 (2005)

Lateral integration of vertical-cavity surface-emitting laser and slow light Bragg reflector waveguide devices

Toshikazu Shimada, Akihiro Matsutani, and Fumio Koyama
Appl. Opt. 53(9) 1766-1774 (2014)

Slow-light in a vertical-cavity semiconductor optical amplifier

Nicolas Laurand, Stephane Calvez, Martin D. Dawson, and Anthony E. Kelly
Opt. Express 14(15) 6858-6863 (2006)

Tunable slow light device using quantum dot semiconductor laser

P. C. Peng, C. T. Lin, H. C. Kuo, W. K. Tsai, J. N. Liu, S. Chi, S. C. Wang, G. Lin, H. P. Yang, K. F. Lin, and J. Y. Chi
Opt. Express 14(26) 12880-12886 (2006)