Common mode rejection ratio control for coherent optical receivers
T Duthel, J Hauenschild, T Kupfer - US Patent 9,337,937, 2016 - Google Patents
An optical signal is received at a coherent optical receiver. The received optical signal is
converted to a first electrical signal and a second electrical signal through a first photode …
converted to a first electrical signal and a second electrical signal through a first photode …
Method and system for common-mode-rejection-ratio (CMRR) characterization of an integrated coherent receiver
M Westlund, H Sunnerud - US Patent 9,106,334, 2015 - Google Patents
There are provided a method and a system for characterizing the CMRR of an ICR under
test, which employ highly coherent light from two continuous-wave (CW) single-frequency …
test, which employ highly coherent light from two continuous-wave (CW) single-frequency …
Measuring device and method of measuring signal transmission time difference thereof
Provided is a method of measuring signal transmission time difference of a measuring
device. The measuring device according to embodiments, by measuring a skew on two …
device. The measuring device according to embodiments, by measuring a skew on two …
Coherent optical receiver testing
BHHJ Rohde, E Gottwald - US Patent 9,806,822, 2017 - Google Patents
An heterodyne apparatus and method for measuring perfor mance parameters of a coherent
optical receiver at RF frequencies is disclosed. Two coherent lights are launched into signal …
optical receiver at RF frequencies is disclosed. Two coherent lights are launched into signal …
Coherent optical receiver testing
BHHJ Rohde, E Gottwald - US Patent 9,806,806, 2017 - Google Patents
An heterodyne apparatus and method for measuring perfor mance parameters of a coherent
optical receiver at RF frequencies is disclosed. Two coherent lights are launched into signal …
optical receiver at RF frequencies is disclosed. Two coherent lights are launched into signal …
Coherent optical receiver device and coherent optical receiving method
K Suzuki - US Patent 11,632,180, 2023 - Google Patents
In a coherent optical receiver device, the dynamic range considerably decreases in the case
of selectively receiving the optical multiplexed signals by means of the wavelength of the …
of selectively receiving the optical multiplexed signals by means of the wavelength of the …
Coherent optical receiver testing
BHHJ Rohde, E Gottwald - US Patent 10,218,437, 2019 - Google Patents
An heterodyne apparatus and method for measuring perfor mance parameters of a coherent
optical receiver at RF frequencies is disclosed. Two coherent lights are launched into signal …
optical receiver at RF frequencies is disclosed. Two coherent lights are launched into signal …
Coherent optical receiver testing
BHHJ Rohde, E Gottwald - US Patent 10,097,279, 2018 - Google Patents
An heterodyne apparatus and method for measuring performance parameters of a coherent
optical receiver at RF frequencies is disclosed. Two coherent lights are launched into signal …
optical receiver at RF frequencies is disclosed. Two coherent lights are launched into signal …
Optical receiver with separated magnitude modulation and phase modulation and operation method thereof
JH Kim - US Patent 11,101,897, 2021 - Google Patents
Disclosed is an optical receiver. The optical receiver includes an optical splitter that splits an
external light signal to output a first light signal and a second light signal, a first amplifier that …
external light signal to output a first light signal and a second light signal, a first amplifier that …
Coherent optical receiver device and coherent optical receiving method
K Suzuki - US Patent 10,985,844, 2021 - Google Patents
In a coherent optical receiver device, the dynamic range considerably decreases in the case
of selectively receiving the optical multiplexed signals by means of the wavelength of the …
of selectively receiving the optical multiplexed signals by means of the wavelength of the …