Wavelength Switching Speed in Semiconductor Ring Lasers With On-Chip Filtered Optical Feedback

作者：Khoder Mulham^*; Nguimdo Romain Modeste; Leijtens Xaveer; Bolk Jeroen; Danckaert Jan; Verschaffelt Guy

来源：IEEE Photonics Technology Letters, 2014, 26(5): 520-523.

DOI：10.1109/LPT.2013.2296398

• Filtered feedback
• packet switching
• photonic integrated circuits
• semiconductor ring lasers
• tunable lasers

We experimentally and numerically characterize the wavelength switching speed of a tunable semiconductor ring laser using filtered optical feedback. The feedback is realized employing two arrayed-waveguide gratings to split/recombine light into different wavelength channels. The wavelength tuning and switching is controlled by changing the currents injected in semiconductor optical amplifiers in the feedback section. A wavelength switching speed of a few nanoseconds is achieved. We investigate also the effect of the feedback parameters and noise strength on the wavelength switching speed.

• 出版日期2014-3-1