AFC-FC-APC-780
780 nm FC/APC Aspheric Fiber Collimator
The AFC-FC-APC-780 offers precise collimation for atomic and molecular physics research around the rubidium resonance lines (780 nm). Featuring an 8° angled connector to eliminate backreflections that destabilize external-cavity diode lasers (ECDL).
Key Advantages
- Tailored for 780 nm rubidium spectroscopy and atomic clocks
- Superior pointing stability with < 0.5° angular offset
- ≥ 60 dB return loss protecting ECDL and DFB master lasers
Detailed Technical Specifications
Every Zolix collimator undergoes interferometric wavefront qualification and precision angular alignment before delivery.
| Parameter | Specification | Classification |
|---|---|---|
| Center Wavelength | 780 nm | Optical |
| Operating Band | 750 – 820 nm | Optical |
| Receptacle | FC/APC | Mechanical |
| Focal Length (f) | 4.5 mm | Optical |
| Beam Waist (2w₀) | 0.68 mm | Beam Quality |
| Divergence (θ) | 0.038° (0.66 mrad) | Beam Quality |
| Return Loss | ≥ 60 dB | Optical |
| Transmission | > 95% | Optical |
Target Applications
- Rubidium atomic spectroscopy & MOT cooling
- Ti:Sapphire beam delivery
- Quantum sensing
Engineering Sizing & NA Verification
Need to calculate exact beam diameter at 5 meters or verify numerical aperture matching between your fiber output and downstream clear apertures? Use our interactive calculation lab.
Mechanical Dimensions & CAD Integration
Standard Zolix Ø11.0 mm precision stainless barrel format for drop-in alignment into standard optical cage systems, mirror mounts, and V-groove clamps.
Zolix precision ground SUS303 stainless steel
8° Angled Physical Contact (APC)
Universal integration into cage & kinematic mounts
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