Photonics Components / Non-Telecom Lineup
THz products for NDI and 6G wireless
Photonic generation of THz signals is promising for various applications. The uni-travelling-carrier (UTC) photomixer is one of the best solutions, because it provides a high 3dB down bandwidth and high-saturation-output power simultaneously.
NTT Innovative Devices have developed two types of UTC photomixer modules. One is a compact rectangular-waveguide-coupled photomixer, and another is an antenna-integrated photomixer module.
FMB diode module
Femi-level managed barrier (FMB) diode module is an ultra-low noise THz detector based on InP/InGaAs heterostructure. Instead of metal/semiconductor interface in a Schottky barrier diode (SBD), InGaAs/InP hetero-interface (barrier height ~ 100meV) is used in an FMB diode.
This low barrier height provides a low diode differential resistance (Rd) and good impedance matching between a diode and a broadband bowtie antenna.
PPLN Wavelength Conversion Module
Visible, Near-IR, and Mid-IR Light Generation
NTT Innovative Devices produces periodically poled lithium niobate (PPLN) waveguide modules for visible, near-IR, and mid-IR light generation. The module consists of a PPLN waveguide, a thermoelectric cooler, and a thermistor. A custom design of the poling period is available. Please specify your pump and SHG/SFG/DFG wavelenghts down to 2 decimal places when ordering modules.
780nm Light Generation
NTT Innovative Devices produces periodically poled lithium niobate(PPLN) waveguide modules for 780nm second harmonic generation(SHG). The module consists of a PPLN waveguide, a thermoelectric cooler, and a thermistor. A phase matching bandwidth (FWHM) of a standard 34mm-long waveguide module is 0.36nm at pump wavelength. A temperature coefficient for the wavelength tuing is 0.1nm/deg C.