Toptica to Showcase THz Spectrometer at Photonics West 2011

Toptica Photonics announced that it will showcase the new frequency-domain terahertz (THz) spectrometer at the Photonics West Expo to be held in San Francisco.

The THz spectrometer, developed by Fraunhofer Heinrich-Hertz Institute (HHI), integrates the InGaAs/InP emitter and detector technology with Toptica ’s  dual-color diode laser, TeraBeam.

The spectrometer has a swift scan option that decreases the acquisition times in cw THz spectroscopy and acquires a comprehensive THz spectrum in less amount of time. The unit utilizes antenna packages and lasers for cw THz at 1.5 ìm wavelength.

The Terabeam diode laser comprises a two-color laser and measurers 161x130x61 mm³. It utilizes fiber components and distributed Bragg reflector laser diodes and offers a two-color output of 30 mW. The diode laser is ideal to meet the power needs of cw THz detectors and emitters.  The receiver utilizes an InGaAs photoconductor and attains maximum SNR values of 80 dB, while the emitter uses a waveguide structure and high-bandwidth photodiode to offer output in the mW range.

The spectrometer attains a measurement speed that is similar to pulsed spectrometers. Selection of the frequency resolution is done through frequency steps and graphic user interface.