Effective Coupling Coefficient

2011 ◽  
Keyword(s):  
Coupling Coefficient ◽  
Effective Coupling

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

scholarly journals The effective coupling coefficient for a completed PIN-PMN-PT array

Ultrasonics ◽  
2021 ◽  
Vol 109 ◽  
pp. 106258
Author(s):  
D.N. Stephens ◽  
R. Wodnicki ◽  
R. Chen ◽  
L.-M. Liang ◽  
Q. Zhou ◽  
...  
Keyword(s):  
Coupling Coefficient ◽  
Effective Coupling

Dual-Mode Hybrid Quasi-SAW/BAW Resonators With High Effective Coupling Coefficient

2020 ◽  
Vol 67 (9) ◽  
pp. 1916-1921
Author(s):  
Yi Zhang ◽  
Jie Zhou ◽  
Ying Xie ◽  
Chuying Tang ◽  
Yang Zou ◽  
...  
Keyword(s):  
Coupling Coefficient ◽  
Effective Coupling ◽  
Dual Mode

Magnetomechanical Properties of Circumferentially Field-Annealed Metglas® 2605SC Cylinders

1994 ◽  
Vol 360 ◽  
Author(s):  
J. B. Restorff ◽  
M. Wun-Fogle ◽  
A. E. Clark ◽  
Thu-Van T. Luu
Keyword(s):  
Coupling Coefficient ◽  
Longitudinal Mode ◽  
Bias Field ◽  
Coupling Coefficients ◽  
Effective Coupling ◽  
Impedance Measurements ◽  
Annealing Temperatures ◽  
Large Numbers ◽  
Demagnetizing Factor ◽  
A Current

AbstractWe have measured the magnetomechanical coupling coefficient of Metglas®2605SC (Fe81B13.5C2) ribbons that were annealed into 1.27 and 0.8 cm diameter cylinders. Lengths ranged from 0.6 to 5 cm. A novel furnace was constructed in which a cylindrical magnetic field was supplied by a current carrying copper rod. During the annealing, a 300 A current created a circumferential field of more than 6400 A/m. Annealing temperatures ranged from 380 to 420 ºC. Large shifts in both the optimum bias field and the coupling coefficient as a function of length and diameter were found due to demagnetizing effects. Impedance vs. frequency measurements show large numbers of modes, some of which are field dependent. Effective coupling coefficientsof the lowest order longitudinal mode were calculated from impedance measurements by using k2 = 1-f2r/f2a, where fr, and fa. are the resonant and antiresonant frequencies respectively. Coupling coefficients for 5 cm long cylinders were as high as 0.58. When the demagnetizing factor is taken into account, we find material coupling coefficients as high as 0.89.

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