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US 12,468,091 B2Granted
System for integrated photonic notch filter
AssigneePsiquantum, Corp.
InventorsBryan Park, Koustuban Ravi, Eric Dudley, Mihai Dorian Vidrighin, Mehdi Jadidi
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Abstract
A notch filter circuit includes a wavelength demultiplexer, a first pump rejection filter coupled to the wavelength demultiplexer, and a second pump rejection filter coupled to the wavelength demultiplexer. The notch filter circuit also includes a first notch filter arm coupled to the first pump rejection filter and including a first chain of asymmetric Mach-Zehnder interferometers (MZIs) and a second notch filter arm coupled to the second pump rejection filter and including a second chain of asymmetric MZIs.
Claims20
A notch filter circuit comprising:
- a wavelength demultiplexer;
- a first pump rejection filter coupled to the wavelength demultiplexer;
- a second pump rejection filter coupled to the wavelength demultiplexer;
- a first notch filter arm coupled to the first pump rejection filter and including a first chain of asymmetric Mach-Zehnder interferometers (MZIs);
- and
- a second notch filter arm coupled to the second pump rejection filter and including a second chain of asymmetric MZIs.
3 more elements
Dependencies are inferred from the claim text.