Journal
CHINESE PHYSICS B
Volume 27, Issue 5, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1674-1056/27/5/050502
Keywords
chaotic dynamic characteristics; integrated chaotic semiconductor laser; short-cavity optical feedback; extraction of internal parameters
Categories
Funding
- International Science and Technology Cooperation Program of China [2014DFA50870]
- National Natural Science Foundation of China [61377089, 61475111, 61527819]
- Shanxi Province Natural Science Foundation, China [2015011049]
- Shanxi Province Youth Science and Technology Foundation, China [201601D021069]
- Shanxi Scholarship Council of China [2016-036]
- Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi, China
- Program for Sanjin Scholar, China
Ask authors/readers for more resources
We design a hybrid integrated chaotic semiconductor laser with short-cavity optical feedback. It can be assembled in a commercial butterfly shell with just three micro-lenses. One of them is coated by a transflective film to provide the optical feedback for chaos generation while insuring regular laser transmission. We prove the feasibility of the chaos generation in this compact structure and provide critical external parameters for the fabrication by theoretical simulations. Rather than the usual changeless internal parameters used in previous simulation research, we extract the real parameters of the chip by experiment. Moreover, the maps of the largest Lyapunov exponent with varying bias current and feedback intensity K-ap demonstrate the dynamic characteristics under different external-cavity conditions. Each laser chip has its own optimal external cavity length (L) and feedback intensity (K-ap) to generate chaos because of the different internal parameters. We have acquired two ranges of optimal parameters (L = 4 mm, 0.12 < K-ap < 0.2 and L = 5 mm, 0.07 < K-ap <0.12) for two different chips.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available