Waveguide sampled Bragg grating
Keywords
optical, bidirectional
Ports
| Name | Type |
|---|---|
| port 1 | Optical Signal |
| port 2 | Optical Signal |
Properties
General Properties
| Name | Default value | Default unit | Range |
|---|---|---|---|
name Defines the name of the element. |
Sampled Bragg Grating | - | - |
annotate Defines whether or not to display annotations on the schematic editor. |
true | - | [true, false] |
enabled Defines whether or not the element is enabled. |
true | - | [true, false] |
type Defines the element unique type (read only). |
Sampled Bragg Grating | - | - |
description A brief description of the elements functionality. |
Waveguide sampled Bragg grating | - | - |
prefix Defines the element name prefix. |
WBG | - | - |
model Defines the element model name. |
- | - | - |
library Defines the element location or source in the library (custom or design kit). |
- | - | - |
local path Defines the local path or working folder $LOCAL for the element. |
- | - | - |
url An optional URL address pointing to the element online help. |
- | - | - |
Standard Properties
| Name | Default value | Default unit | Range |
|---|---|---|---|
configuration Defines the bidirectional or unidirectional element configuration. |
bidirectional | - | [bidirectional, unidirectional |
length The length of the waveguide. |
0.005 | m | [0, +∞) |
duty cycle The sampled grating duty cycle. |
0.2 | - | [0, 1] |
sampling number The number of sampling periods withing the grating length. |
1 | - | [1, +∞) |
input parameter Defines whether to provide the grating period or the Bragg frequency. |
Bragg frequency | - | [grating period, Bragg frequency |
period The grating period. |
0.53e-006 | m | [0, +∞) |
frequency Central frequency of operation. |
1550 | nm* *std. unit is Hz |
(2.99792e-83, +∞) |
effective index change ac The effective index change over the grating length. |
0.0004 | - | [0, +∞) |
effective index change dc The background effective index change over the grating length. |
0 | - | [0, +∞) |
Waveguide/Mode 1 Properties
| Name | Default value | Default unit | Range |
|---|---|---|---|
orthogonal identifier 1 The first identifier used to track an orthogonal mode of an optical waveguide. For most waveguide, two orthogonal identifiers '1' and '2' are available (with the default labels 'TE' and 'TM' respectively). |
1 | - | [1, +∞) |
label 1 The label corresponding to the first orthogonal identifier. |
TE | - | - |
loss 1 The loss corresponding to the first orthogonal identifier. |
0 | dB/m | [0, +∞) |
effective index 1 The effective index corresponding to the first orthogonal identifier. |
1.477 | - | (-∞, +∞) |
group index 1 The group index coefficient corresponding to the first orthogonal identifier. |
1.447 | - | [0, +∞) |
Waveguide/Mode 2 Properties
| Name | Default value | Default unit | Range |
|---|---|---|---|
orthogonal identifier 2 The second identifier used to track an orthogonal mode of an optical waveguide. For most waveguide, two orthogonal identifiers '1' and '2' are available (with the default labels 'TE' and 'TM' respectively). |
2 | - | [1, +∞) |
label 2 The label corresponding to the second orthogonal identifier. |
TM | - | - |
loss 2 The loss corresponding to the second orthogonal identifier. |
0 | dB/m | [0, +∞) |
effective index 2 The effective index corresponding to the second orthogonal identifier. |
1.477 | - | (-∞, +∞) |
group index 2 The group index coefficient corresponding to the second orthogonal identifier. |
1.447 | - | [0, +∞) |
Waveguide/Mode 1/Thermal Properties
| Name | Default value | Default unit | Range |
|---|---|---|---|
effective index temperature sensitivity 1 Defines the ratio between effective index variation and temperature. |
0 | /K | (-∞, +∞) |
excess loss temperature sensitivity 1 Defines the ratio between loss variation and temperature. |
0 | /K | [0, +∞) |
Waveguide/Mode 2/Thermal Properties
| Name | Default value | Default unit | Range |
|---|---|---|---|
effective index temperature sensitivity 2 Defines the ratio between effective index variation and temperature. |
0 | /K | (-∞, +∞) |
excess loss temperature sensitivity 2 Defines the ratio between loss variation and temperature. |
0 | /K | [0, +∞) |
Thermal Properties
| Name | Default value | Default unit | Range |
|---|---|---|---|
thermal effects Defines whether or not to enable thermal effects. |
false | - | [true, false] |
temperature Defines the temperature. |
%temperature% | K | (-∞, +∞) |
nominal temperature Defines the nominal temperature where temperature sensitivity values are measured. |
300 | K | (-∞, +∞) |
thermal fill factor The waveguide length ratio affected by the thermal effects. |
1 | - | [0, 1] |
Numerical/Digital Filter Properties
| Name | Default value | Default unit | Range |
|---|---|---|---|
single tap filter Defines whether or not to use a single tap digital filter to represent the element transfer function in time domain. |
false | - | [true, false] |
number of taps estimation Defines the method used to estimate the number of taps of the digital filter. |
fit tolerance | - | [disabled, fit tolerance, group delay |
filter fit tolerance Defines the mean square error for the fitting function. |
0.001 | - | (0, 1) |
window function Defines the window type for the digital filter. |
rectangular | - | [rectangular, hamming, hanning |
number of fir taps Defines the number of coefficients for digital filter. |
256 | - | [1, +∞) |
maximum number of fir taps Defines the number of coefficients for digital filter. |
4096 | - | [1, +∞) |
filter delay Defines the time delay equivalent to a number of coefficients for digital filter. |
0 | s | [0, +∞) |
initialize filter taps Defines whether to use the initial input signal to initialize filter state values or to set them to zero values. |
false | - | [true, false] |
Diagnostic Properties
| Name | Default value | Default unit | Range |
|---|---|---|---|
run diagnostic Enables the frequency response of the designed filter implementation and the ideal frequency response to be generated as results. |
false | - | [true, false] |
diagnostic size The number of frequency points used when calculating the filter frequency response. |
1024 | - | [2, +∞) |
Results
| Name | Description |
|---|---|
| diagnostic/response #/transmission | The complex transmission vs. frequency corresponding to the ideal and designed filter. |
| diagnostic/response #/gain | The gain vs. frequency corresponding to the ideal and designed filter. |
| diagnostic/response #/error | Mean square error comparing the frequency response of the designed filter implementation with the ideal frequency response. |
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