Side-mode transmission diagnosis of a multichannel selectable injection-locked Fabry-Perot laser diode with anti-reflection coated front facet
Journal
Optics Express
Journal Volume
17
Journal Issue
6
Pages
4859-4867
Date Issued
2009
Author(s)
Abstract
Theory and experiments on the side-mode-suppression-ratio (SMSR) enhancement and the linewidth reduction of a Fabry-Perot laser diode (FPLD) side-mode-injection-locked by using another FPLD are demonstrated to realize its potential application as a DWDM transmitter source. The SMSR, the spectral linewidth and the linewidth enhancement factor are simulated to realize the limitation of the FPLD-FPLD link under side-mode injection-locking condition. A degradation of the linewidth enhancement factor from 1.5 to 2.1 is observed due to the slave FPLD injection-locked at principle- and side-mode conditions. Up to 22-channel selectability of the 2.5 Gbit/s directly modulated FPLD based transmitter under side-mode injection-locking is demonstrated with a SMSR >35 dB, a Q-factor 6.8-9.2, a locking range of 24 nm, a power penalty of -0.7 dB, and a BER of 10-10 at -17 dBm. The side-mode injection-locked FPLD shows high-quality transmission performance and meet the demand for cost-effective and high-capability 2.5 Gbit/s WDM systems. © 2008 Optical Society of America.
SDGs
Other Subjects
Cost effectiveness; Laser theory; Linewidth; Q factor measurement; Transmitters; Directly modulated; Fabry-Perot laser diode; High capabilities; Injection-locking; Linewidth enhancement factor; Linewidth reduction; Side mode suppression ratios; Spectral line width; Fabry-Perot interferometers
Type
journal article