4.6 nm Mode-Hop-Free Tunable DFB Laser with High Coupling Coefficient Gratings

2006 ◽  
Author(s):  
N. Nunoya ◽  
Y. Shibata ◽  
H. Ishii ◽  
H. Okamoto ◽  
Y. Kawaguchi ◽  
...  
Keyword(s):  
Coupling Coefficient ◽  
Dfb Laser

Dependence of spectral linewidth on cavity length and coupling coefficient in DFB laser

1988 ◽  
Vol 24 (10) ◽  
pp. 613-614 ◽  
Author(s):  
S. Ogita ◽  
Y. Kotaki ◽  
K. Kihara ◽  
M. Matsuda ◽  
H. Ishikawa ◽  
...  
Keyword(s):  
Coupling Coefficient ◽  
Cavity Length ◽  
Spectral Linewidth ◽  
Dfb Laser

Effect of metal contact's reflection on the effective coupling coefficient of second-order DFB laser diodes

2004 ◽  
Vol 42 (4) ◽  
pp. 339-342 ◽  
Author(s):  
Yuan Zhong ◽  
Xiaopeng Zhu ◽  
Guofeng Song ◽  
Yidong Huang ◽  
Lianghui Chen
Keyword(s):  
Coupling Coefficient ◽  
Laser Diodes ◽  
Second Order ◽  
Effective Coupling ◽  
Dfb Laser

DFB laser with nonuniform coupling coefficient realized by double-layer buried grating

1993 ◽  
Vol 5 (10) ◽  
pp. 1128-1131 ◽  
Author(s):  
S. Nilsson ◽  
T. Kjellberg ◽  
T. Klinga ◽  
J. Wallin ◽  
K. Streubel ◽  
...  
Keyword(s):  
Double Layer ◽  
Coupling Coefficient ◽  
Dfb Laser

scholarly journals Dynamic Response of Two-Electrode Distributed Feedback Laser for Stable Signal Mode Operation

2015 ◽  
Vol 5 (1) ◽  
pp. 23
Author(s):  
Hamza Bousseta ◽  
A. Zatni ◽  
A. Amghar ◽  
A. Moumen ◽  
A. Elyamani
Keyword(s):  
Dynamic Response ◽  
Coupling Coefficient ◽  
Communication Systems ◽  
Optical Fiber Communication ◽  
Distributed Feedback ◽  
Hole Burning ◽  
Mode Operation ◽  
Signal Mode ◽  
Dfb Laser ◽  
Dynamic Signal

The longitudinal spatial hole burning (LSHB) effect has been known to limit the performance of distributed feedback (DFB) semiconductor lasers to achieve a better dynamic signal mode operation (DSMO). So, in order to ensure a stable (DSMO), we propose a novel device design of two electrode DFB lasers with longitudinal variation in the coupling coefficient (distributed coupling coefficient (DCC)), the structure also contains a phase shifted in middle of the cavity. By means of the finite difference time domain (FDTD) numerical method, we analyze dynamic response of our structure and we also compare the results with the conventional two electrode DFB laser (TE-DFB). The numerical simulation shows that, a better dynamic signal mode has been achieved by TE-DCC-DFB lasers in comparison with TE-DFB laser due to its better and high side mode suppression ratio (SMSR). Therefore, the TE-DCC-DFB lasers will be useful to extend the transmission distance in optical fiber communication systems.

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