Single polarization 90° optical hybrid COH240 pages

90° optical hybrids
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COH

1 – Description
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 enable to 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.

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COH

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