Polarization insensitive, low-loss, low-crosstalk wavelength multiplexer modules

Nadler, Ch.; Wildermuth, Eberhard; Lanker, M.; Hunziker, Walter; Melchior, H.

doi:10.1109/2944.806898

Cited by 48 publications

(17 citation statements)

References 14 publications

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“…Owing to their capability to precisely demultiplex a large number of channels with relatively low losses, AWGs have been proposed for the implementation of multiple applications that embrace the fields of devices, systems, and networks [14]. Examples of these include the production of spectrum-sliced sources [15], dispersion compensation [16], WDM multiplexers and demultiplexers [17], tunable filters [18], wavelength routing [19], optical processing [20], point-to-point WDM systems, and reconfigurable large-capacity WDM networks [21].…”

Section: Integrated Dual Arrayed Waveguide Grating Correlatormentioning

confidence: 99%

Arrayed‐waveguide‐grating‐based correlator for optical header recognition

Aljada

Alameh

Al‐Begain

2006

Micro & Optical Tech Letters

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In this section, we test locally conformal PML technique via a three-dimensional scatterer, which is a conesphere whose halfcone angle is 45°, base radius is 1.6, and length is 1.6. The edge size is set to approximately /10. The thicknesses of the PML and the free-space regions are both /5. The mesh cross-section and the bistatic RCS pattern of the conesphere are plotted in Figures 6 and 7, respectively, assuming an axial (nose-on) plane-wave incidence. The mesh cross-section in Figure 7 is just a coarse mesh given for the purpose of visualization. The different gray-shades in the mesh correspond to the scatterer, free-space and PML regions, respectively. CONCLUSIONSIn this article, we have introduced the locally conformal PML technique in terms of a complex coordinate transformation. The technique is very simple to implement an ordinary FEM software.We have investigated the accuracy of the technique via comparisons with the MoM and literature data. REFERENCES 1. J.P. Berenger, A perfectly matched layer for the absorption of electromagnetic waves,

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Section: Integrated Dual Arrayed Waveguide Grating Correlatormentioning

confidence: 99%

Arrayed‐waveguide‐grating‐based correlator for optical header recognition

Aljada

Alameh

Al‐Begain

2006

Micro & Optical Tech Letters

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“…However, in a waveguide resonator, two eigenstates of polarization (ESOP) exist except for the special case resulting from intrinsic birefringence, which results in excitation of two resonance dips in the output response and becomes one of the noise factors of the MOG. Many efforts, for example, using stress relief grooves [5,6], adding a silicon film on the waveguide [7,8] and mid-infrared [9] laser processing, or ultraviolet [10] irradiation of the waveguides, have been performes to reduce or eliminate the waveguide birefringence. Generally, those methods require additional complex and time-consuming processes to minimize the waveguide birefringence.…”

Section: Introductionmentioning

confidence: 99%

A single-mode single-polarization monolithically silica waveguide ring resonator used in microoptic gyro

Guo

Shi

Zhao

et al. 2010

Journal of Modern Optics

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A single-mode single-polarization waveguide (SMSPW) ring resonator for the microoptic gyro (MOG) was proposed, and it could be monolithically integrated onto a silica planar lightwave circuit. We have presented the design of a three-dimensional SMSPW ring resonator in which the TM mode cuts off and the TE mode transmits by taking into consideration the stress-induced birefringence effect of the Si-based silica waveguide using the effective-index method. The characteristics of the light propagation across the SMSPW resonator were studied by a three-dimensional finite difference beam propagation method. Numerical simulation results showed the SMSPW ring resonator has a high extinction ratio over 50 dB cm À1 for the TM mode, low propagation loss of 0.055 dB cm À1 for the TE mode, and a high finesse of 36. A rate detection limit of 0.8 h À1 can be achieved. Without increasing the complexity of the waveguide fabrication process, this structure can solve the MOGs output bias instabilities induced by polarization fluctuations and provide a new solution for MOGs.

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“…Silica-based arrayed-waveguide grating (AWG) [2][3] multiplexeres are attractive as wavelength division multiplexer/de-multiplexer for dense WDM systems. However, wavelength stability issue becomes increasing significant in increasing the channel counts by shrinking channel spacing.…”

Section: Introductionmentioning

confidence: 99%