Takahide Sakamoto, Akito Chiba. Multiple-Frequency-Spaced and -Offset Flat Optical Comb Generation Using Multiple-Parallel Phase Modulator: Theory and Design. Journal of the Optical Society of America B. 2022. 39. 6. 1644-1654
Akito Chiba, Yosuke Akamatsu. (Feature Paper selected by Editors) Wavelength-Tunable Optical Two-Tone Signals Generated Using Single Mach-Zehnder Optical Modulator in Single Polarization-Mode Sagnac Interferometer. Photonics (MDPI). 2022. 9. 3. 194-1-194-12
Akito Chiba, Yusuke Sunaga. Complex amplitude estimation of monochromatic radio-frequency signal using frequency down conversion via direct detection of interfered optical phase-modulation signals. Optics Letters. 2021. 46. 11. 2646-2649
Takahide Sakamoto, Akito Chiba. Multiple-frequency-spaced flat optical comb generation using a multiple-parallel phase modulator. Optics Letters. 2017. 42. 21. 4462-4465
A. Chiba. RF Parameter Estimation Using Lightwave Modulation (INVITED). Proc. 12th Conf. Communications, Circuits, and Systems 2023 (ICCCAS2023). 2023
Akito Chiba, Yusuke Sunaga. RF signal estimation utilizing low-frequency beat signal due to harmonics of phase-modulation lightwave. Proc. 15th Pacific Rim Conference on Lasers and Electro-Optics (CLEO-PR2022). 2022. P-CTh6-05-1-P-CTh6-05-2
Akito. Chiba, Takahide Sakamoto. Double frequency-spacing optical comb generation based on I-Q optical modulation (INVITED). Proc. International Conference on Technology and Social Science 2019 (ICTSS 2019). 2019
Akito Chiba, Yosuke Akamatsu, Kazumasa Takada. Sextupled frequency-spacing optical two-tone signals using selective polarization-rotation by a negative-index modulation (INVITED). Proc. International Conference on Sensor Networks and Signal Processing (SNSP 2018). 2018