Results 51 to 60 of about 882,801 (311)

Numerical investigation of a feed-forward linewidth reduction scheme using a mode-locked laser model of reduced complexity [PDF]

open access: yes, 2018
We provide numerical verification of a feed-forward, heterodyne-based phase noise reduction scheme using single-sideband modulation that obviates the need for optical filtering at the output.
Aflatouni   +33 more
core   +3 more sources

L-Band Erbium Fiber Laser with Tunable and Narrow Sub-kHz Linewidth Output

open access: yesApplied Sciences, 2023
In this paper, a wavelength-selectable erbium-doped fiber (EDF) laser in L-band bandwidth with a simple structure and low cost is described. To obtain stable single-longitudinal-mode (SLM) and narrow laser linewidth, the 2 m unpumped EDF-based saturable ...
Lan-Yin Chen   +6 more
doaj   +1 more source

Tutorial on narrow linewidth tunable semiconductor lasers using Si/III-V heterogeneous integration

open access: yesAPL Photonics, 2019
Narrow linewidth lasers have many applications, such as higher order coherent communications, optical sensing, and metrology. While semiconductor lasers are typically unsuitable for such applications due to relatively low coherence, recent advances in ...
M. Tran, Duanni Huang, J. Bowers
semanticscholar   +1 more source

Powerful narrow linewidth random fiber laser

open access: yesPhotonic Sensors, 2016
In this paper, we demonstrate a narrow linewidth random fiber laser, which employs a tunable pump laser to select the operating wavelength for efficiency optimization, a narrow-band fiber Bragg grating (FBG) and a section of single mode fiber to ...
Jun Ye   +3 more
doaj   +1 more source

Passive intrinsic-linewidth narrowing of ultraviolet extended-cavity diode laser by weak optical feedback [PDF]

open access: yes, 2014
We present a simple method for narrowing the intrinsic Lorentzian linewidth of a commercial ultraviolet grating extended-cavity diode laser (TOPTICA DL Pro) using weak optical feedback from a long external cavity.
Braverman, Boris   +9 more
core   +2 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Phase-locking of two self-seeded tapered amplifier lasers

open access: yes, 2010
We report on the phase-locking of two diode lasers based on self-seeded tapered amplifiers. In these lasers, a reduction of linewidth is achieved using narrow-band high-transmission interference filters for frequency selection.
Baillard   +24 more
core   +1 more source

Dual-microcavity narrow-linewidth Brillouin laser [PDF]

open access: yes, 2015
Ultralow-noise yet tunable lasers are a revolutionary tool in precision spectroscopy, displacement measurements at the standard quantum limit, and the development of advanced optical atomic clocks.
Baynes, Fred N.   +8 more
core   +2 more sources

Narrow-linewidth fiber laser operating at 155 μm [PDF]

open access: yesOptics Letters, 1987
We report the fabrication and operation of an Er(3+)-doped silica single-mode fiber laser operating at 1.55 microm and using a distributed fiber grating to provide feedback. The output bandwidth was measured as 0.04 nm, significantly narrower than the conventional cavity design. The laser had a threshold of 13 mW and a slope efficiency of 5%.
Jauncey, I.M.   +3 more
openaire   +4 more sources

2.5 kW Narrow Linewidth Linearly Polarized All-Fiber MOPA With Cascaded Phase-Modulation to Suppress SBS Induced Self-Pulsing

open access: yesIEEE Photonics Journal, 2020
As a major limitation for power scaling of high power narrow linewidth fiber master oscillator power amplifiers (MOPAs), Stimulated Brillouin Scattering (SBS) induced self-pulsing in polarization maintaining (PM) fiber amplifiers is well characterized ...
Yanshan Wang   +8 more
semanticscholar   +1 more source

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