Coherent optics
High-speed coherent transmission, advanced modulation formats, and the signal-processing challenges inside modern optical links.
Engineering professional and researcher
Advancing high-speed optical communications.
I am Mahmood Abu Romoh, PhD. My work spans digital signal processing, photonics, and the digital converters that enable faster coherent communication systems.
Coherent optics
Digital signal processing
ADC and DAC systems
Machine learning
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About me
From physical principles to practical systems.
I am an engineering professional at Marvell Technology in Ottawa, Canada, with a strong foundation in mathematics and physics and research experience in high-speed optical communications.
I earned my PhD from Aston University through the Aston Institute of Photonic Technologies. My doctoral work investigated the DSP aspects of coherent optical systems, particularly how ADC and DAC limitations can be addressed to support higher modulation formats and baud rates.
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Technical focus
Building more capable optical transceivers.
Digital conversion
Understanding and compensating for ADC and DAC resolution, nonlinearity, and other practical transceiver limitations.
Machine learning
Applying neural-network techniques to pre-distortion and compensation problems in optical communication systems.
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Selected research
Research grounded in real transceiver constraints.
2023
Digital Converters for High-Speed Coherent Optical Communication
Doctoral thesis, Aston University
2021
64-Gbd/64-QAM probabilistic shaping with a digital resolution enhancer
Optical Fiber Communication Conference
2019
Neural-network pre-distortion for low-resolution DAC nonlinearity
IET Conference publication
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