Analysis the Structure Parameters of the SOI Rib Waveguide

2011 ◽  
Vol 194-196 ◽  
pp. 674-678
Author(s):  
Xiang Wei Shen ◽  
Xin Zhu Sang ◽  
Chong Xiu Yu ◽  
Jin Hui Yuan ◽  
Cang Jin
Keyword(s):  
Wavelength Conversion ◽  
Beam Propagation Method ◽  
Wavelength Region ◽  
Beam Propagation ◽  
Parametric Amplification ◽  
Anomalous Dispersion ◽  
Silicon On Insulator ◽  
Nonlinearity Parameter ◽  
Structure Parameters ◽  
Rib Waveguide

With the different sizes of the structure parameters of the SOI(Silicon on Insulator) rib waveguide, the dispersion and the nonlinearity parameters are investiaged using the beam propagation method. It is found that for the same structure parameters, the dispersion and the nonlinearity parameter γ are different between the TE and TM modes. With the changing of the structure parameters the anomalous dispersion and the nonlinearity parameter γ can be up to 972 ps/km/nm and 1.065×106w-1.km-1in the wavelength region near 1550nm.The high anomalous dispersion and the nonlinearity parameter γ means it’s a good candidate to realize parametric amplification and wavelength conversion.

Tunable wavelength conversion based on optofluidic infiltrated photonic crystal fibers

2019 ◽  
Vol 28 (01) ◽  
pp. 1950002 ◽  
Author(s):  
H. Pakarzadeh ◽  
R. Derakhshan ◽  
S. Hosseinabadi
Keyword(s):  
Photonic Crystal ◽  
Wavelength Conversion ◽  
Photonic Crystal Fibers ◽  
Wavelength Region ◽  
Anomalous Dispersion ◽  
Index Formula ◽  
Wavelength Shift ◽  
Dispersion Properties ◽  
Dispersion Regime ◽  
Crystal Fibers

In this paper, wavelength conversion based on optofluidic infiltration of photonic crystal fibers (PCFs) is investigated to achieve the suitable wavelength over wide tunable range. For this purpose, two designs of PCFs (the so-called PCF1 and PCF2) with appropriate dispersion properties are simulated, and wavelength conversion via four-wave mixing process for pump wavelengths in both normal and anomalous dispersion regimes is studied. By changing the refractive index [Formula: see text] of the optical fluid infiltrated into the PCF air-holes and then varying the fiber dispersion properties, the converted wavelength region can be tuned. The results show that for the pump wavelength in the normal dispersion regime, the PCF1 infiltrated with [Formula: see text] and PCF2 infiltrated with [Formula: see text] exhibit the maximum wavelength shift. Moreover, the wavelength shift is much higher than that obtained in the anomalous dispersion regime and it can be further increased by increasing the input pump power.

scholarly journals S-Bend Silicon-On-Insulator (SOI) Large Cross-Section Rib Waveguide for Directional Coupler

2017 ◽  
Vol 7 (6) ◽  
pp. 3299
Author(s):  
Nurdiani Zamhari ◽  
Abang Annuar Ehsan ◽  
Mohd Syuhaimi Abdul Rahman
Keyword(s):  
Cross Section ◽  
Directional Coupler ◽  
Beam Propagation Method ◽  
Single Mode ◽  
Silicon On Insulator ◽  
Large Cross Section ◽  
Rib Waveguide ◽  
Passive Devices ◽  
The Right ◽  
Future Work

S-bend contributes the high losses in the silicon-on-insulator (SOI) large cross-section rib waveguide (LCRW). The objective of this work is to investigate S-bend SOI LCRW with two different single-mode dimensions named symmetrical and asymmetrical. The S-bend SOI LCRW has been simulating using beam propagation method in OptiBPM software. The asymmetrical waveguide with two different dimension arc given the best performance if compared to others dimension with 3 µm of waveguide spacing. It achieved 92.24% and 91.10% of normalized output power (NOP) for 1550 nm and 1480 nm wavelength respectively. Moreover, the minimum of S-bend spacing between the two cores is 0.9 µm for both 1550 nm and 1480 nm. Therefore, asymmetrical waveguide with two different dimension arc and 0.9 µm of S-bend spacing are chosen. This analysis is important to determine the right parameter in order to design the SOI passive devices. However, future work should be done to see the performance by designing the coupler and implement in the real system.

Quasi-3-D beam-propagation method for modeling nonlinear wavelength conversion

2001 ◽  
Vol 19 (5) ◽  
pp. 772-779 ◽  
Author(s):  
Shing Mou ◽  
Ching-Fuh Lin ◽  
Hsu-Feng Chou
Keyword(s):  
Wavelength Conversion ◽  
Beam Propagation Method ◽  
Beam Propagation

Intersecting rib waveguide structures with reduced crosstalk

1996 ◽  
Vol 74 (S1) ◽  
pp. 39-42
Author(s):  
M. G. Daly ◽  
P. E. Jessop ◽  
D. Yevick
Keyword(s):  
Numerical Study ◽  
Beam Propagation Method ◽  
Optical Power ◽  
Beam Propagation ◽  
Rib Waveguide ◽  
Design Flexibility ◽  
Device Structures ◽  
Rib Waveguides ◽  
Curved Waveguide

A numerical study of the throughput and crosstalk in intersecting semiconductor rib waveguides was carried out using the beam propagation method. The fraction of the optical power that couples out of one input waveguide and into the crossed waveguide falls to below 3% for crossing angles greater than 4°. Two simple modifications to the waveguide shape at the X-crossing region were found to reduce the crosstalk for crossing angles between 4° and 10° such that the crosstalk to throughput ratio may be reduced by up to a factor of 100 while the throughput is reduced by, at most, a few percent. In device structures that combine X-crossings with curved waveguide sections our results permit greater design flexibility and improved overall loss and crosstalk performance.

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