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The 725-type 25 Gb/s EML Chip-on-Carrier (CoC) is an optical sub-assembly consisting of a 1.3 μm Electro-absorption Modulated Laser (EML) mounted on a metalized platform.  The CoC has been purged and electro-optically tested to support 25 Gb/s applications.  The carrier comes in four LAN-WDM wavelength lanes, for 4 × 25Gb/s transmission.


  • Capable of transmission up to 28 Gb/s
  • LAN-WDM avelengths at ~1296, 1300, 1305 and 1309 nm nominal, for 4 × 25/ 28 Gb/s transmission applications
  • Operation temperature 45 to 60C
  • CMBH multi-quantum well DFB structure
  • Highly reliable
  • High bandwidth modulator for high ER/ low Vpp

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory No
Form Factor CoC
Structure EML
RoHS6 Compliant Y
Emitter EML
Data Rate 25 Gb/s
Wavelength/channel plan 1310
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