EML TEC TO Package (Pedestal)

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Cooled header for EML applications, economical alternative to box packages

The SCHOTT TEC TO package is a newly developed transistor outline (TO) which is ideal for laser diodes that require a thermoelectric cooler (TEC). The thermoelectric cooler allows for controlled heat dissipation, which leads to regulated and stable laser wavelengths and higher power signal transmission. 

TEC TO (Pedestal) are suitable for  EML chips in single-channel DWDM in 10Gb Ethernet, CPRI, XGPON and other tunable laser applications.

Product Variants

OSA Type
TO Can Description
XFP 25 Gbps
50 Gbps
Tx SMF TO-56, 1 x 50-ohm, 6+1 Large space for TEC, 2 TEC pin, Separate Thermistor,
MPD, LD bias, 50-ohm Signal pins, one gnd pin
25G  EML Cool Header
Pesestal TEC TO Header
TEC TO with components
Pedestal TO with components
50G Cooled EML Header
50G Cooled EML Header with components
50G Pedestal EML TEC TO
50G TEC with components

Product performance of 25G EML cooled header

S11 (dB) – Reflection/Return Loss
Pedestal TEC TO S11 Graph
S21 (dB) – Insertion Loss
Pedestal TEC TO S21 Graph
S11: Better than -15dB @30GHz for speeds of up to 25 Gbps.
S21: 3dB bandwidth better than 30GHz.
Pedestal TEC TO Graphic

Product performance of 50G EML cooled header

Pedestal Cool Header Simulation -1 new
Header with TEC, FPC and EML Submount
Pedestal Cool Header-simulation-2
*Simulation based on LD height of 2.5mm
  • S11: Better than -15dB @40GHz
  • S21: 3dB bandwidth better than 60GHz

56 GBaud PAM4 Eye Diagram with 50G EML chip

Pedestal Cool Header-Simulation -3 new
Pedestal Cool Header -simulation-4 new
Pedestal TEC TO-Simulation 5
Pedestal Cool Header-Simulation-6

Matched TO cap types

Matched with Lens cap, molded mini Lens, window cap solder type and window cap mold type.

Don't be shy

Contact our experts, Mr. Robert Hettler and Ms. Amy Soon for more product information by the following mail form and our team will promptly respond to your inquiry

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Electronic Packaging, SCHOTT North America, Inc., promises that all data entered into a web form will only be used for internal purposes.

EP TO Team
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