TOSA
The compact TOSA, functionally equivalent to the Butterfly header, enables high-speed optical transmission in SFP, XFP and SFP+ modules, offering efficient integration and reliable thermal management.There are two TOSA designs available: a coaxial type (max. 5.6 mm diameter) and a box-like type standardized by a 2004 MSA for compatibility with 2.5 Gb/s and 10 Gb/s sources.
The header surface area, suitable for mounting both coaxial and box-like TOSAs, is typically 4.5 x 5.0 mm². Ferrotec-RMT specializes in miniature thermoelectric cooling solutions and provides a range of standard and customized TECs for cooled TOSA applications of both types - coaxial and XMD MSA TOSA.
Key features
- Compact Size: Small form factor, ideal for SFP/XFP transceivers.
- High-Speed Performance: Houses EML, DML, DFB, VCSEL laser diodes for fast data transmission.
- Fiber Coupling: Efficient lens arrays for optical fiber integration.
- Thermal Management: Integrated TECs for temperature stability.
- Hermetic Seal: Protects components, ensuring long-term reliability.
- Connections: Provides power, signal and temperature monitoring leads.
Applications:
- Fiber-Optic Communication: Used in optical transceivers for high-speed data transmission in networks like Ethernet and telecom.
- High-Speed Networking: Essential for SFP, QSFP and XFP modules.
- Medical and Industrial: Used in laser diodes for sensing, spectroscopy and imaging.
|
Type |
Form factor |
Internal space |
Material |
Model |
|---|---|---|---|---|
|
TOSA XMD MSA |
box-like shape |
more internal space, more flexible TECs integration |
Kovar or Cu(20%)-W(80%) alloy Nickel and gold coating |
|
|
Coaxial TOSA |
cylindrical shape |
less internal space, limiting TECs integration |
Kovar or CRS Nickel and gold coating |
 |