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Home: Products > Lasers with Frequency Conversion > Tera Hertz Generation 
TEC 450
 Diode Laser Based CW THz Generation
US Patent 5,867,512 | US Patent 6,297,066 | US Patent 6,869,483 |
US Patents pending


Description:
A diode laser pumped frequency converted laser system is offered for CW Tera Hertz Generation via Frequency Mixing. The Frequency Mixing Crystal is pumped via two superimposed tunable diode lasers. Depending on the power requirements of the frequency mixer crystal, a amplification stage is included for boosting the carrier wave with the beat signal via a modified Master Oscillator Power Amplifier (MOPA) configuration. The covered THz frequency regime ranges from DC to several THz. Special features are:

Excellent tuning behavior

  • coarse and fine tuning modes of the master lasers
  • fine tuning via piezo actuator with a resolution better than 10MHz
  • manual coarse tuning up to 20THz
  • large mode-hop free tuning range of up to 100GHz and more

Narrow linewidth

  • linewidth < 300kHz
  • excellent side mode suppression > 50dB

Flexible schemes of realization

  • THz system based on tunable Littman / Metcalf master lasers with free beam optics
  • THz system based on tunable DFB master lasers with free beam optics
  • THz system based on fiber coupled tunable DFB master lasers
  • THz system based on Butterfly packaged, fiber coupled tunable DFB master lasers

Plug & Play configuration

  • automated wavelength tuning
  • remote control via GPIB, RS232 and USB

 

Application:
Applications for the new laser generation include:

 

·        Spectroscopy und optical process control

·        Homeland Security

   

 

Technical Information

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Cavity Layout

 

Available Downloads

MOPA Laser Systems
Lasers for Spectroscopy
Tuning Behavior
AR Coatings
TEC-500 vs. TEC-520
Littman vs. Littrow
Linewidth
Modehops

Literature

Photonics West 2007
Photonics West 2006

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