Results 71 to 80 of about 30,357 (177)

Narrow-Linewidth Semiconductor Laser with Hybrid Feedback

open access: yesPhotonics
Narrow-linewidth semiconductor lasers have become indispensable devices in high-precision measurement and detection. Among various available technologies, self-injection locking plays a crucial role due to its significant ability to reduce linewidth and ...
Mingyuan Xue   +6 more
doaj   +1 more source

Analytical and Experimental Evaluation of SSB Phase Noise Reduction in Self-Injection Locked Oscillators Using Optical Delay Loops

open access: yesIEEE Photonics Journal, 2013
A novel forced oscillation technique is discussed for the phase noise reduction of electrical and optoelectronic oscillators. This paper features self-injection locking using single and dual long fiber-optic delay loops and provides analysis for the ...
Li Zhang   +3 more
doaj   +1 more source

Self-injection locked CW single-frequency tunable Ti:sapphire laser

open access: yesOptics Express, 2017
A self-injection locked continuous-wave (CW) single-frequency tunable Ti:sapphire laser is demonstrated in this paper. Unidirectional operation of the presented Ti:sapphire laser is achieved by using a retro-reflecting device which can retro-reflect a seed laser beam from one direction back into the counter-propagating field.
Yixiao, Wei   +3 more
openaire   +2 more sources

Modified Percutaneous Repair of Acute Achilles Tendon Rupture: A Sliding Knot Technique Using Absorbable Suture

open access: yesMedicine Science, 2022
Purpose The purpose of this study was to describe our technique and to assess its clinical efficacy. The modified percutaneous approach, we hypothesized, would provide additional resistance to tendon lengthening during the healing process.
Lokman Kehribar   +2 more
doaj   +1 more source

Injection locking of an electro-optomechanical device

open access: yes, 2017
The techniques of cavity optomechanics have enabled significant achievements in precision sensing, including the detection of gravitational waves and the cooling of mechanical systems to their quantum ground state. Recently, the inherent non-linearity in
Baker, Christopher   +3 more
core   +1 more source

Multiple RF carrier distribution in a hybrid radio/fiber system employing a self-pulsating laser diode transmitter [PDF]

open access: yes, 2002
A self-pulsating laser diode is used to generate a multicarrier microwave optical signal for use in a hybrid radio/fiber system. The self-pulsation frequency of the laser is controlled by external light injection, and can be varied between 14-24 GHz. The
Anandarajah, Prince M.   +2 more
core   +1 more source

Dual-comb generation with counter-propagating self-injection-locked solitons

open access: yesOptics Express, 2023
Microresonator-based optical frequency combs have been greatly developed in the last decade and have shown great potential for many applications. A dual-comb scheme is usually required for lidar ranging, spectroscopy, spectrometer and microwave photonic channelizer.
Xinghong Li   +4 more
openaire   +2 more sources

Speed Enhancement of a Single-Mode FP-LD-Based Switch Using the Weak-Lock Technique

open access: yesIEEE Photonics Journal, 2014
A technique called weak-lock (WL) has been proposed and applied to a simple optical on/off switch to increase its working speed from 1 to 12 Gb/s with clear output waveforms, whereas the required injection power is decreased.
Q. H. Tran, B. Nakarmi, Y. H. Won
doaj   +1 more source

Design and analysis of a reconfigurable discrete pin tooling system for molding of three-dimensional free-form objects [PDF]

open access: yes, 2010
This paper presents the design and analysis of a new reconfigurable tooling for the fabrication of three-dimensional (3D) free-form objects. The proposed reconfigurable tooling system comprises a set of matrices of a closely stacked discrete elements (i ...
Koc, Bahattin   +2 more
core   +2 more sources

Wrist Pulse Rate Monitor Using Self-Injection-Locked Radar Technology [PDF]

open access: yesBiosensors, 2016
To achieve sensitivity, comfort, and durability in vital sign monitoring, this study explores the use of radar technologies in wearable devices. The study first detected the respiratory rates and heart rates of a subject at a one-meter distance using a self-injection-locked (SIL) radar and a conventional continuous-wave (CW) radar to compare the ...
Fu-Kang Wang   +3 more
openaire   +3 more sources

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