iXblue – Optical Phase Demodulators
90° Optical Hybrid
COH 90° optical hybrids enable to extract phase, amplitude and polarization by performing interferences between a Signal and a Local Oscillator.
The COH24 is a single polarization 90° optical hybrid that enables to extract phase and amplitude from a single polarization signal by performing four 90° phase stepped interferences between the signal and a Local Oscillator (LO). The COH24-X is a new generation optical hybrid with improved performances (among other things, a wider operating wavelength range and much better dual uniformities).
The COH28 and COH28-X are based on two single polarization 90° optical hybrids that can extract phase, amplitude and polarization from a signal with any polarization.
These products are purely passive and athermal.
The COH24-X and COH28-X also feature a phase tunability option in order to perfectly adjust the 90° of the hybrid depending on the wavelength used.
iXblue also offers dual-polarization 180° hybrids.
Download – COH Datasheet
DPSK demodulators
MINT is a Mach-Zender Delay Line Interferometer (DLI). WTMINT is a FSR-tunable DLI available with delay ranges from 100ps till 9ns.
MINT
The Micro Interferometer (MINT) is a Delay Line Interferometer (DLI) that performs the interference between an incoming signal and itself delayed by one bit-time. Dedicated to DPSK demodulation, it can be used in many other applications.
MINT is tunable to enable a precise matching of the carrier frequency. KYLIA can provide DLI with any FSR value, according to customer requirement (any FSR > 0.4GHz).
WT-MINT
The WT-MINT is a Widely Tunable MINT that enables to set the delay of the interferometer to the required value. This can be done either with a micrometer head (manual option) or with a motorized translation stage (piloted version). The WTMINT is available in a 12ns delay range version (any FSR > 83MHz).
Download – MINT Datasheet