Highly nonlinear chalcogenide glasses for ultrafast all optical switching in optical TDM communication systems

2002 ◽  
Author(s):  
S. Spalter ◽  
G. Lenz ◽  
R.E. Slusher ◽  
H.Y. Hwang ◽  
J. Zimmermann ◽  
...  
Keyword(s):  
Communication Systems ◽  
Chalcogenide Glasses ◽  
Optical Switching ◽  
Highly Nonlinear ◽  
All Optical ◽  
All Optical Switching

Highly nonlinear chalcogenide glasses for all-optical switching

2003 ◽  
Author(s):  
J. M. Harbold ◽  
F. O. Ilday ◽  
Frank W. Wise ◽  
Jasbinder S. Sanghera ◽  
Ishwar D. Aggarwal ◽  
...  
Keyword(s):  
Chalcogenide Glasses ◽  
Optical Switching ◽  
Highly Nonlinear ◽  
All Optical ◽  
All Optical Switching

All-optical switching in long-period fiber grating with highly nonlinear chalcogenide fibers

2018 ◽  
Vol 57 (34) ◽  
pp. 10044 ◽  
Author(s):  
Leilei Wang ◽  
Jianghui Zeng ◽  
Liang Zhu ◽  
Dandan Yang ◽  
Qian Zhang ◽  
...  
Keyword(s):  
Optical Switching ◽  
Fiber Grating ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Highly Nonlinear ◽  
All Optical ◽  
Period Fiber Grating ◽  
All Optical Switching

Highly nonlinear Ge-As-Se and Ge-As-S-Se glasses for all-optical switching

2002 ◽  
Vol 14 (6) ◽  
pp. 822-824 ◽  
Author(s):  
J.M. Harbold ◽  
F.O. Ilday ◽  
F.W. Wise ◽  
B.G. Aitken
Keyword(s):  
Optical Switching ◽  
Highly Nonlinear ◽  
All Optical ◽  
All Optical Switching

Laser-diode-driven ultrafast all-optical switching by using highly nonlinear chalcogenide glass fiber

1993 ◽  
Vol 18 (13) ◽  
pp. 1056 ◽  
Author(s):  
Masaki Asobe ◽  
Terutoshi Kanamori ◽  
Hideki Kobayashi ◽  
Hiroki Itoh
Keyword(s):  
Glass Fiber ◽  
Chalcogenide Glass ◽  
Laser Diode ◽  
Optical Switching ◽  
Highly Nonlinear ◽  
All Optical ◽  
All Optical Switching

Highly nonlinear As–S–Se glasses for all-optical switching

2002 ◽  
Vol 27 (2) ◽  
pp. 119 ◽  
Author(s):  
J. M. Harbold ◽  
F. Ö. Ilday ◽  
F. W. Wise ◽  
J. S. Sanghera ◽  
V. Q. Nguyen ◽  
...  
Keyword(s):  
Optical Switching ◽  
Highly Nonlinear ◽  
All Optical ◽  
All Optical Switching

scholarly journals All-optical switching using a new photonic crystal directional coupler

2015 ◽  
Vol 4 (1) ◽  
pp. 63 ◽  
Author(s):  
B. Vakili ◽  
S. Bahadori-Haghighi ◽  
R. Ghayour
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Communication Systems ◽  
Optical Switching ◽  
Directional Coupler ◽  
Refractive Index Change ◽  
Control Signal ◽  
Index Change ◽  
All Optical ◽  
All Optical Switching

In this paper all-optical switching in a new photonic crystal directional coupler is performed.  The structure of the switch consists of a directional coupler and a separate path for a control signal called “control waveguide”. In contrast to the former reported structures in which the directional couplers are made by removing a row of rods entirely, the directional coupler in our optical switch is constructed by two reduced-radius line-defect waveguides separated by the control waveguide. Furthermore, in our case the background material has the nonlinear Kerr property. Therefore, in the structure of this work, no frequency overlap occurs between the control waveguide mode and the directional coupler modes. It is shown that such a condition provides a very good isolation between the control and the probe signals at the output ports. In the control waveguide, nonlinear Kerr effect causes the required refractive index change by the presence of a high power control (pump) signal. Even and odd modes of the coupler are investigated by applying the distribution of the refractive index change in the nonlinear region of a super-cell so that a switching length of about 94 µm is obtained at the wavelength of 1.55 µm. Finally, all-optical switching of the 1.55 µm probe signal using a control signal at the wavelength of 1.3 µm, is simulated through the finite-difference time-domain method, where both signals are desirable in optical communication systems. A very high extinction ratio of 67 dB is achieved and the temporal characteristics of the switch are demonstrated.

Switching energy limitation in all‐optical switching due to group velocity dispersion of highly nonlinear optical waveguides

1994 ◽  
Vol 64 (22) ◽  
pp. 2922-2924 ◽  
Author(s):  
Masaki Asobe ◽  
Kazunori Naganuma ◽  
Toshikuni Kaino ◽  
Terutoshi Kanamori ◽  
Satoru Tomaru ◽  
...  
Keyword(s):  
Group Velocity ◽  
Optical Waveguides ◽  
Optical Switching ◽  
Nonlinear Optical ◽  
Velocity Dispersion ◽  
Group Velocity Dispersion ◽  
Highly Nonlinear ◽  
All Optical ◽  
Energy Limitation ◽  
All Optical Switching

Linear and nonlinear optical properties of Ag–As–Se chalcogenide glasses for all-optical switching

2004 ◽  
Vol 29 (3) ◽  
pp. 265 ◽  
Author(s):  
Kazuhiko Ogusu ◽  
Jun Yamasaki ◽  
Shinpei Maeda ◽  
Michihiko Kitao ◽  
Makoto Minakata
Keyword(s):  
Optical Properties ◽  
Chalcogenide Glasses ◽  
Optical Switching ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
All Optical ◽  
Linear And Nonlinear ◽  
All Optical Switching
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