ELSFP (External Light Source Fixed Pointer) modules provide continuous-wave lasers to CPO switches. Rather than integrating lasers inside the switch package, ELSFP places lasers in a separate, accessible module connected via fiber arrays.
This architecture simplifies switch thermal management—lasers are external—but requires high-performance thermal substrates to manage heat from dense multi-wavelength laser arrays.
Industry-standard form factor for 8-channel CW laser arrays. 15×15 to 20×20mm footprint.
Each ELSFP module typically contains 8 CW-DML lasers at 100Gb/s each = 800Gb/s per module.
8 high-power CW lasers in 15×15mm footprint. Heat flux exceeds 500 W/cm².
OIF-ELSFP-02.0 compatible sizes with custom configurations.
| Parameter | OIF Standard | 6C Solution |
|---|---|---|
| Module Footprint | Custom per OIF spec | 8×32, 9×36, 10×40mm |
| Channel Count | 8 channels | 8 channels |
| Channel Pitch | 250μm – 750μm | 250μm – 750μm |
| Laser Type | CW-DML (Direct Modulated) | CW-DML compatible |
| Data Rate | 100Gb/s per channel | 100Gb/s per channel |
OIF-ELSFP-02.0 is the External Light Source Fixed Pointer implementation agreement. Contact us for full standard documentation.
Handles >500 W/cm² from dense 8-channel laser arrays
Multi-layer copper for laser electrode fan-out and grounding
Up to 16 channels in standard pitch configurations
Direct replacement for ELSFP-02.0 standard submounts