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Updated: Jun 2, 2026
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Multiplication of optical frequency shift by cascaded electro-optic traveling phase gratings operating above 10 GHz
Shintaro Hisatake1, Takaaki Konishi, Tadao Nagatsuma
1Division of Advanced Electronics and Optical Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan. hisatake@ee.es.osaka‐u.ac.jp
Abstract:
We propose and demonstrate an electro-optic (EO) multiplication of a frequency shift using 10 GHz order electrical signal. The principle is based on a successive Bragg diffraction from cascaded EO traveling phase gratings in a traveling wave EO phase modulator. We fabricate a shift frequency doubler using simple domain engineering processes in a LiTaO₃ crystal. Frequency shifting of ±32.5 GHz with an efficiency of 60% is demonstrated using a 16.25 GHz modulation signal.
