scholarly journals Mid-infrared Integrated Electro-optic Modulator Operating up to 225 MHz between 6.4 and 10.7 μm Wavelength

ACS Photonics ◽  
2022 ◽  
Author(s):  
Miguel Montesinos-Ballester ◽  
Lucas Deniel ◽  
Natnicha Koompai ◽  
Thi Hao Nhi Nguyen ◽  
Jacopo Frigerio ◽  
...  
Keyword(s):  
Mid Infrared ◽  
Electro Optic ◽  
Electro Optic Modulator

Mid-infrared electro-optic modulator based on a graphene-embedded plasmonic rib waveguide with ultrahigh electro-optic wavelength tuning

2021 ◽  
Vol 60 (10) ◽  
pp. 2795
Author(s):  
Chenyang Hou ◽  
Tao Ma ◽  
Jinhui Gao ◽  
Heng Liu ◽  
Fang Wang
Keyword(s):  
Wavelength Tuning ◽  
Mid Infrared ◽  
Rib Waveguide ◽  
Electro Optic ◽  
Electro Optic Modulator

200 µJ, 13  ns Er:ZBLAN mid-infrared fiber laser actively Q-switched by an electro-optic modulator

2021 ◽  
Vol 46 (5) ◽  
pp. 1141
Author(s):  
Yanlong Shen ◽  
Yousheng Wang ◽  
Feng Zhu ◽  
Lianying Ma ◽  
Liu Zhao ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Mid Infrared ◽  
Electro Optic ◽  
Electro Optic Modulator

Electro-Optic Modulator for Compensation of Third-Order Intermodulation Distortion Using Frequency Chirp Modulation

2020 ◽  
Vol E103.C (11) ◽  
pp. 653-660
Author(s):  
Daichi FURUBAYASHI ◽  
Yuta KASHIWAGI ◽  
Takanori SATO ◽  
Tadashi KAWAI ◽  
Akira ENOKIHARA ◽  
...  
Keyword(s):  
Intermodulation Distortion ◽  
Frequency Chirp ◽  
Third Order ◽  
Chirp Modulation ◽  
Electro Optic ◽  
Electro Optic Modulator

Velocity matching of III-V travelling-wave electro-optic modulator structures

1990 ◽  
Vol 26 (1) ◽  
pp. 32-33 ◽  
Author(s):  
M.R.T. Tan ◽  
I. Kim ◽  
J. Chang ◽  
S.Y. Wang
Keyword(s):  
Travelling Wave ◽  
Electro Optic ◽  
Velocity Matching ◽  
Electro Optic Modulator

scholarly journals A New Method to Verify the Measurement Speed and Accuracy of Frequency Modulated Interferometers

2021 ◽  
Vol 11 (13) ◽  
pp. 5787
Author(s):  
Toan-Thang Vu ◽  
Thanh-Tung Vu ◽  
Van-Doanh Tran ◽  
Thanh-Dong Nguyen ◽  
Ngoc-Tam Bui
Keyword(s):  
Phase Change ◽  
High Speed ◽  
Measurement Accuracy ◽  
Slow Motion ◽  
New Method ◽  
Virtual Displacement ◽  
Electro Optic ◽  
Lock In ◽  
Speed And Accuracy ◽  
Electro Optic Modulator

The measurement speed and measurement accuracy of a displacement measuring interferometer are key parameters. To verify these parameters, a fast and high-accuracy motion is required. However, the displacement induced by a mechanical actuator generates disadvantageous features, such as slow motion, hysteresis, distortion, and vibration. This paper proposes a new method for a nonmechanical high-speed motion using an electro-optic modulator (EOM). The method is based on the principle that all displacement measuring interferometers measure the phase change to calculate the displacement. This means that the EOM can be used to accurately generate phase change rather than a mechanical actuator. The proposed method is then validated by placing the EOM into an arm of a frequency modulation interferometer. By using two lock-in amplifiers, the phase change in an EOM and, hence, the corresponding virtual displacement could be measured by the interferometer. The measurement showed that the system could achieve a displacement at 20 kHz, a speed of 6.08 mm/s, and a displacement noise level < 100 pm//√Hz above 2 kHz. The proposed virtual displacement can be applied to determine both the measurement speed and accuracy of displacement measuring interferometers, such as homodyne interferometers, heterodyne interferometers, and frequency modulated interferometers.

Optical two-tone generation and SSB modulation using electro-optic modulator with suppressing redundant spectrum components

2011 ◽  
Vol 3 (3) ◽  
pp. 295-300 ◽  
Author(s):  
Akira Enokihara ◽  
Tadashi Kawai ◽  
Tetsuya Kawanishi
Keyword(s):  
Input Power ◽  
Intensity Level ◽  
Optical Signals ◽  
Single Sideband ◽  
Electro Optic ◽  
Rf Signals ◽  
Frequency Components ◽  
Optical Single Sideband ◽  
Tone Generation ◽  
Electro Optic Modulator

Doubled frequency optical two-tone generation and optical single sideband (SSB) modulation by the dual-electrode-type electro-optic (EO) modulator with a single Mach–Zehnder (MZ) interferometer were considered. We theoretically showed that redundant spectrum components in the modulated optical signals, which are caused by the imbalance of light splitting ratio between the two arms of the interferometer, are significantly suppressed by controlling the input power ratio of RF modulation signals applied to each electrode. This effect was confirmed by the experiment, where an optical two-tone with the redundant components 49.8 dB lower than the primary two-tone components in intensity level was obtained. This method is also valid for suppression of undesired frequency components of RF signals that are generated at a photo detector from the optical two-tone waves propagated through a dispersive optical fiber.

Rapid and precise partial pressure measurement of multiple gas species with Mid-infrared electro-optic dual-comb spectroscopy

Optik ◽  
2021 ◽  
pp. 167341
Author(s):  
Detian Li ◽  
Xinyi Ren ◽  
Ming Yan ◽  
Dong Fan ◽  
Ruiqiang Yang ◽  
...  
Keyword(s):  
Partial Pressure ◽  
Pressure Measurement ◽  
Mid Infrared ◽  
Electro Optic

Single-Source Duplex High-Speed FSO Communications Using Electro-Optic Modulator-Based MRR

2018 ◽  
Author(s):  
Xianglian Feng ◽  
Hexin Jiang ◽  
Zhihang Wu ◽  
Tianshu Wang ◽  
Hongwei He ◽  
...  
Keyword(s):  
High Speed ◽  
Single Source ◽  
Electro Optic ◽  
Electro Optic Modulator
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