ModCon Mode Controller - Aerospace
A passive mode controller that delivers the 85/85% Limited Phase Space launch condition called for by aerospace fiber optic test standards.
Technical overview
The ModCon is a passive mode controller: a length of specially prepared multimode fiber in a sealed housing that redistributes the modal power of whatever source is connected to it. Because the output modal distribution is set by the device rather than by the source, an LED, VCSEL or FP laser test set all launch the same mode distribution into the fiber under test. Every unit is tested on Arden's MPX Modal Explorer to confirm the output meets the standard irrespective of the input distribution. The aerospace version is specified by the width of the Near Field Pattern at the 5%, 15% and 75% intensity levels rather than by Encircled Flux, and is supplied in a Eurocard case for 50/125 um or 62.5/125 um graded index fiber with FC, ST, SC or LC connectors. 70/70% Limited Phase Space versions are also available, where the Near Field Width at the 5% level is 70% of the nominal core diameter.
Features
- Meet 85/85% launch conditions
- Improve your measurement accuracy
- Ensure stable launch conditions for multimode fiber measurements
- Available in 50/125 um and 62.5/125 um Graded Index fiber
- FC, ST, SC or LC connectors
- Certificate of Conformance or Test Certificate (850 and 1300 nm) available as options
- 70/70% Limited Phase Space versions also available
Specifications
| Parameter | Value |
|---|---|
| Insertion loss @ 850 nm (50 um fiber) | typically <5.0 dB |
| Insertion loss @ 850 nm (62.5 um fiber) | typically <5.0 dB |
| Dimensions | 165 x 105 x 32 mm |
| Weight | 380 g |
| Launch condition, 62.5/125 fiber - Near Field Width at 5% of max | Maximum 55, Minimum 51 um |
| Launch condition, 62.5/125 fiber - Near Field Width at 15% of max | Maximum 52, Minimum 45 um |
| Launch condition, 62.5/125 fiber - Near Field Width at 75% of max | Maximum 33, Minimum 20 um |
| Launch condition, 50/125 fiber - Near Field Width at 5% of max | Maximum 44.0, Minimum 40.8 um |
| Launch condition, 50/125 fiber - Near Field Width at 15% of max | Maximum 41.6, Minimum 36.0 um |
| Launch condition, 50/125 fiber - Near Field Width at 75% of max | Maximum 26.4, Minimum 16.0 um |
| Ordering - MC-FC-50-E-85 | Mode control patchcord with FC connectors in Eurocard case to deliver an 85/85% modal launch into 50 um core fiber from an 850 or 1300 nm light source |
| Ordering - MC-FC-62-E-85 | As MC-FC-50-E-85 but into 62.5 um core fiber |
| Ordering - MC-LC-50-E-85 / MC-LC-62-E-85 | LC connector versions for 50 um / 62.5 um core fiber |
| Ordering - MC-SC-50-E-85 / MC-SC-62-E-85 | SC connector versions for 50 um / 62.5 um core fiber |
| Ordering - MC-ST-50-E-85 / MC-ST-62-E-85 | ST connector versions for 50 um / 62.5 um core fiber |
Applications
- Insertion loss testing of aerospace optical fiber harnesses
- Aerospace standards requiring 85/85% Limited Phase Space launch
- Loss and bandwidth measurement of multimode fiber where source modal distribution varies
You may also like
A passive in-line mode controller that converts any multimode light source into an Encircled Flux compliant launch for telecom and LAN loss testing.
A twelve-channel rack-mount version of the ModCon mode controller, for conditioning 12-way optical switches or testing ribbon and multi-fiber assemblies.
A compact board-mountable mode controller intended for integration inside OEM test instruments, delivering an Encircled Flux compliant launch.
Need help specifying this?
Our application engineers will confirm specifications with the manufacturer and quote for your configuration.
Request Info