| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1540653 | Optics Communications | 2007 | 4 Pages |
Abstract
A dual mode multi-section gain-coupled distributed feedback laser with tunable mode spacing is subharmonically injection locked at 0.315 THz. The injected signal consists of an optical comb with harmonics 35 GHz apart and a bandwidth of approximately 1.9 THz. The optical comb is a result of strong four-wave mixing in a highly-nonlinear dispersion-shifted fiber. In order to observe locking of the multi-section laser, the output is optically downconverted to RF frequencies using the same optical comb. The locked multi-section DFB laser is a coherent and tunable optical source suitable for continuous-wave terahertz generation systems.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Mohammed Al-Mumin, Cheolhwan Kim, Inwoong Kim, Nazar Jaafar, Guifang Li,