Set-and-forget alignment
Adjust once during setup and lock, on axes that do not need to move again during the run.

Opto-Mechanics · Fiber Alignment Accessories
APFCH-3 interchangeable fiber chuck
Interchangeable fiber chuck for use with the APFP-FC dovetail fiber-chuck holder.
Datasheet (PDF) ↗Catalog context
APFCH-3 is listed as APFCH-3 interchangeable fiber chuck in the Fiber Alignment Accessories family. The local catalog record provides these first selection fields: Type: Interchangeable fiber chuck; Fiber diameter range: Multiple diameters; Holder compatibility: APFP-FC.
| Type | Interchangeable fiber chuck |
|---|---|
| Fiber diameter range | Multiple diameters |
| Holder compatibility | APFP-FC |
Application context
Application guidance is derived from the product family and tied to the model-specific selection fields above.
Adjust once during setup and lock, on axes that do not need to move again during the run.
Establish the optical axis by hand before a piezo or motorised stage takes the fine motion.
Reconfigure a layout quickly, with no cabling, controllers or electrical noise added to the experiment.
Model selection
Compare APFCH-3 with the closest available models in the Fiber Alignment Accessories family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | APFCH-3 (current) | APFCH-2 | APFP-FC |
|---|---|---|---|
| Optic accepted | Confirm for this model | Confirm for this model | Confirm for this model |
| Adjustment | Confirm for this model | Confirm for this model | Confirm for this model |
| Mounting interface | Confirm for this model | Confirm for this model | Confirm for this model |
| Material | Confirm for this model | Confirm for this model | Confirm for this model |
Before you specify
Engineering context for choosing this class of component, with the tradeoffs worked through on real specifications.
PhotonicsSingle-mode fiber does not preserve polarization. Pin the state, erase it with a scrambler, or maintain it in PM fiber — which one your measurement needs, and the response time and extinction ratio that decide it.
Open guide
PhotonicsLinewidth, spectral width, RIN, M², and coherence length answer five different questions. Translate each into the units your experiment is designed in — and learn which ones not to pay for.
Open guide