It reduces the power level of an optical signal
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. |
Optical Attenuator | - | - |
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). |
Optical Attenuator | - | - |
description A brief description of the elements functionality. |
It reduces the power level of an optical signal | - | - |
prefix Defines the element name prefix. |
ATT | - | - |
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 |
attenuation Defines the attenuation |
0 | dB | (-∞, +∞) |
enable return loss Defines whether or not to include the effect of return loss (reflections) in the output signals. |
false | - | [true, false] |
return loss Defines the return loss. |
100 | dB | [0, +∞) |
Waveguide Properties
| Name | Default value | Default unit | Range |
|---|---|---|---|
modes List of optical mode labels supported by the element. |
TE,TM | - | - |
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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Implementation Details
The element Optical Attenuator attenuates the input signal by the amount of value according to the user's setting. Following is the demonstration system in the example file [[optical_attenuator.icp]] to illustrate the working principle and effect of this element and the property of this element.
The attenuation of this element is set to be 3 dB in the example, and according to the figure above, the optical power meters measure a 3 dB attenuation after this element. Another property in the standard setting of this element is the "return loss", which defines the reflection caused by this element. The "return loss" can be enabled or disabled.