Optical Communication Coupling
High-speed automatic fiber alignment, coupling and dispensing
Coupling a laser precisely into single-mode fiber for efficient optical signal transmission is the core process across optical communication, laser manufacturing and optical sensing. The Akribis high-speed auto-coupling solution embeds the alignment algorithm in the controller firmware, running high-speed motion and optical-power acquisition together and auto-locating the optimal coupling and dispensing point as soon as each scan completes. It replaces the traditional host-stitched motion-then-acquire workflow, and 200G / 400G / 800G / 1.6T FA and lens coupling are already in volume production.
Why Agito
60%+ faster alignment
Motion control and optical-power acquisition run synchronously in firmware, eliminating host communication delay and shortening the development cycle.
Nanometer-class stability
Static jitter within ±10 nm and 30 ms settling (±25 nm window); 16-bit ADC at 0.1 mV resolution with ±0.3 mV input noise.
Flexible scan strategies
Spiral, zigzag and spiral-square raster scans, with firmware function hooks for customer-specific coupling algorithms.
Proven in the market
200G / 400G / 800G / 1.6T FA and lens coupling deployed at volume, with clear advantages in multi-channel COB and CPO coupling.
Performance
| Coarse scan (spiral) | 5 µm, 10-turn spiral in 0.9 s |
|---|---|
| Fine scan (traversal) | ±20 µm, 1000 data points in 0.65 s |
| Fine scan (hill-climb) | ±20 µm peak search in 0.55 s |
| Alignment efficiency | 65%+ average improvement vs. conventional methods |
Solution & system configuration
The high-performance AGD301 3-axis drive-control unit (or the AGM800 8-axis controller for multi-channel coupling) paired with the XRS-XYZ precision linear-motor stage: 1 nm grating resolution, repeatability ≤ ±50 nm, absolute accuracy ≤ ±200 nm, speed ≥ 350 mm/s, acceleration ≥ 1 G.