Results 41 to 50 of about 30,460 (195)

Generation and Quenching of Intensity Pulsations in Semiconductor Lasers Coupled to External Cavities [PDF]

open access: yes, 1980
The behavior of self-pulsing and nonpulsing lasers coupled to external cavities is investigated experimentally and theoretically. We investigate the dependence of the pulsation characteristics on the external cavity length using a saturable absorber ...
Figueroa, Luis   +2 more
core   +1 more source

Single-Frequency and Single-Polarization DFB Fiber Laser Based on Tapered FBG and Self-Injection Locking

open access: yesIEEE Photonics Journal, 2015
A stable single-polarization narrow linewidth single-frequency distributed feedback (DFB) fiber laser is proposed and demonstrated. For the first time, to our knowledge, the tapered FBG written in the photosensitive large-mode-area (LMA) high ...
Bin Yin   +4 more
doaj   +1 more source

A Low-Phase-Noise Self-Aligned Sub-Harmonically Injection-Locked PLL Using Aperture Phase Detector-Based DLL Windowing Technique

open access: yesIEEE Access, 2023
This paper proposes a self-aligned sub-harmonically injection locked phase locked loop (SILPLL) in 180-nm Semi Conductor Laboratory (SCL) CMOS technology.
Saurabh Kumar, Yatendra Kumar Singh
doaj   +1 more source

Antiphase dynamics in a multimode semiconductor laser with optical injection [PDF]

open access: yes, 2008
A detailed experimental study of antiphase dynamics in a two-mode semiconductor laser with optical injection is presented. The device is a specially designed Fabry-Perot laser that supports two primary modes with a THz frequency spacing. Injection in one
A. Amann   +7 more
core   +2 more sources

SILO-Radar: Self-Injection Locked Oscillator based Radar

open access: yes, 2020
A compact Self-Injection Locked Oscillator based Doppler Radar (SILO-Radar) at 5 GHz has been studied, analytically and numerically. The SILO-Radar consists of just a cross-coupled oscillator and a Schottky diode baseband detector, with the help of the Hilbert transform at the baseband to extract the Doppler phase information.
Kommireddy, Akhila   +7 more
openaire   +3 more sources

An Optomechanical Oscillator on a Silicon Chip [PDF]

open access: yes, 2010
The recent observation on radiation-pressure-driven self-sustained oscillation in high-Q optical microresonators has created new possibilities for development of photonic devices that benefit from unique functionalities offered by these “optomechanical ...
Hossein-Zadeh, Mani, Vahala, Kerry J.
core   +1 more source

Narrow-Linewidth 852-nm DBR-LD with Self-Injection Lock Based on High-Finesse Optical Cavity Filtering

open access: yesPhotonics, 2023
Narrow-linewidth lasers have a high spectral purity, long coherent length, and low phase noise, so they have important applications in atomic clocks, precision measurement, and quantum computing. We inject a transmitted laser from a narrow-linewidth (∼15
Lili Hao   +4 more
doaj   +1 more source

Spin-transfer-torque resonant switching and injection locking in presence of a weak external microwave field for spin valves with perpendicular materials

open access: yes, 2010
The effects of a weak microwave field in the magnetization dynamics driven by spin-transfer-torque in spin-valves with perpendicular materials have been systematically studied by means of full micromagnetic simulations.
Azzerboni, Bruno   +3 more
core   +1 more source

Synthetic reflection self-injection-locked microcombs

open access: yesNature Photonics
AbstractLaser-driven microresonators have enabled chip-integrated light sources with unique properties, including the self-organized formation of ultrashort soliton pulses and frequency combs (microcombs). While poised to impact major photonic applications such as spectroscopy, sensing and optical data processing, microcombs still necessitate complex ...
Alexander E. Ulanov   +5 more
openaire   +4 more sources

Resonant micro-optical gyro based on self-injection locking

open access: yesOptics Express, 2020
We propose the idea and design of a novel resonant micro-optical gyro based on a self-injection locking technique. By enhancing the reciprocity and measuring beat frequency, the sensitivity of gyro is improved effectively, which is usually limited by two main factors: low signal-to-noise ratio and immature signal detecting technique.
Jingtong Geng   +3 more
openaire   +2 more sources

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