Results 91 to 100 of about 30,460 (195)

Distributed measurements of vibration frequency using phase-OTDR with a DFB laser self-stabilized through PM fiber ring cavity

Results in Physics, 2019
We have evaluated the performance of a phase-sensitive optical time domain reflectometry (φ-OTDR) system for vibration measurements utilizing a conventional telecom DFB laser self-stabilized through an external PM optical fiber ring resonator.
J.L. Bueno Escobedo, J. Jason, C.A. López-Mercado, V.V. Spirin, M. Wuilpart, P. Mégret, D.A. Korobko, I.O. Zolotovskiy, A.A. Fotiadi   +8 more
doaj   +1 more source

Magneto Acoustic Spin Hall Oscillators

, 2018
This paper introduces a novel oscillator that combines the tunability of spin Hall-driven nano oscillators with the high quality factor (Q) of high overtone bulk acoustic wave resonators (HBAR), integrating both reference and tunable oscillators on the ...
Bhave, Sunil A., Camsari, Kerem Y., Gosavi, Tanay A., Torunbalci, Mustafa Mert   +3 more
core   +1 more source

Injection-locking dynamics of two self-pulsing nanocavities optically coupled on photonic integrated circuit

Communications Physics
Pulse generation in nanostructure devices underpins all-optical spiking neurons, on-chip communication, and sampling. Synchronizing such devices provides insights for implementing analog all-optical machines, at the cost of adding complexity to the ...
Gregorio Beltramo, Róbert Horváth, Giuseppe Modica, Rémy Braive   +3 more
doaj   +1 more source

Miniature Optical Atomic Clock: Stabilization of a Kerr Comb Oscillator [PDF]

, 2013
Mechanical clocks consist of a pendulum and a clockwork that translates the pendulum period to displayed time. The most advanced clocks utilize optical transitions in atoms in place of the pendulum and an optical frequency comb generated by a femtosecond
Byrd, J., Eliyahu, D., Ilchenko, V. S., Liang, W., Maleki, L., Matsko, A. B., Savchenkov, A. A., Seidel, D.   +7 more
core  

Bistable phase control via rocking in a nonlinear electronic oscillator

, 2006
We experimentally demonstrate the effective rocking of a nonlinear electronic circuit operating in a periodic regime. Namely, we show that driving a Chua circuit with a periodic signal, whose phase alternates (also periodically) in time, we lock the ...
J. A. Casals, Javier M. Buldú, Jordi García-Ojalvo, K. Staliunas, Landau L. D.   +4 more
core   +1 more source

Broadly Tunable Self-injection Locked InAs/InP Quantum-dash Laser Based Fiber/FSO/Hybrid Fiber-FSO Communication at 1610 nm

IEEE Photonics Journal, 2018
We report a self-injection-locked InAs/InP quantum-dash tunable laser with ∼11 nm (∼1602–1613 nm) tuning window for next generation multiuser ultrahigh capacity fiber/free-space optics (FSO)/hybrid ...
M. A. Shemis, E. Alkhazraji, A. M. Ragheb, M. T. A. Khan, M. Esmail, H. Fathallah, S. A. Alshebeili, M. Z. M. Khan   +7 more
doaj   +1 more source

Optimum stabilization of self-mode-locked quantum dash lasers using dual optical feedback with improved tolerance against phase delay mismatch

, 2017
We experimentally investigate the RF linewidth and timing jitter over a wide range of delay tuning in a self-mode-locked two-section quantum dash lasers emitting at ~ 1.55 micron and operating at ~ 21 GHz repetition rate subject to single and dual ...
Asghar, Haroon, Kumar, Pramod, Mcinerney, John. G., Sooudi, Ehsan, Wei, Wei   +4 more
core   +1 more source

Self‐Detecting Mid‐Infrared Dual‐Comb Spectroscopy Based on High‐Speed Injection‐Locked Quantum Cascade Lasers

Advanced Photonics Research
Dual‐comb spectrometer based on quantum cascade lasers (QCLs) is gaining fast development and revolutionizing the precision measurement with high‐frequency and temporal resolutions.
Yu Ma, Dapeng Wu, Ruixin Huang, Shichen Zhang, Binru Zhou, Zejun Ma, Yongqiang Sun, Junqi Liu, Ning Zhuo, Jinchuan Zhang, Shenqiang Zhai, Shuman Liu, Fengqi Liu, Manijeh Razeghi, Quanyong Lu   +14 more
doaj   +1 more source

Accuracy of Self-Injection Locking Radar System for Vital Signs Detection During the COVID-19 Pandemic at a Hospital in Taiwan: Measuring Vital Signs Accurately with SIL Radar for Hospital Healthcare. [PDF]

Med Sci Monit, 2023
Tzou SJ, Chen IH, Chu TH, Chian DM, Wang FK, Lee YK, Ko CY.   +6 more
europepmc   +1 more source

Photonic Cavity Synchronization of Nanomechanical Oscillators

, 2013
Synchronization in oscillatory systems is a frequent natural phenomenon and is becoming an important concept in modern physics. Nanomechanical resonators are ideal systems for studying synchronization due to their controllable oscillation properties and ...
Bagheri, Mahmood, Fan, Linran, Marquardt, Florian, Poot, Menno, Tang, Hong X.   +4 more
core   +1 more source