Results 71 to 80 of about 2,076,915 (172)

Polarization‐Controlled Wavelength‐Tunable Pulsed Laser Based on Metafiber

open access: yesNanophotonics, Volume 15, Issue 17, 11 September 2026.
A polarization‐sensitive Au‐nanorod metasurface has been proposed that integrates saturable absorption with wavelength‐tuning capabilities. By fabricating this metasurface structure on the facet of the fiber, known as a metafiber, low‐loss coupling between the metasurface and the fiber laser system is achieved.
Chenxi Zhang   +7 more
wiley   +1 more source

Integrated Sensing and Communication in a Fiber‐Wireless System With Time‐Phase Synthesis Dimension Waveform

open access: yesNanophotonics, Volume 15, Issue 17, 11 September 2026.
A unified fiber‐wireless integrated sensing and communication system is enabled by a single microwave photonic platform with a time‐phase synthesis dimension waveform. This architecture simultaneously delivers high‐speed data transmission, high‐precision wireless ranging, and accurate fiber diagnostics over a high‐power analog radio‐over‐fiber link ...
Shengkun Chen   +9 more
wiley   +1 more source

1.5 µm Emission Properties of Erbium‐Implanted Thin‐Film Lithium Niobate

open access: yesAdvanced Optical Materials, Volume 14, Issue 34, 11 September 2026.
Optically active Er3+ ions are incorporated into x‐cut lithium niobate on insulator utilising a focused ion‐beam implantation method capable of sub‐100 nm precision. The implanted regions exhibit telecom‐band emission, with a reduction in photoluminescence intensity and lifetime below 50 K, consistent with pyroelectric‐field effects in the host ...
Daniel Blight   +5 more
wiley   +1 more source

A new design approach for fibre DFB lasers with improved efficiency [PDF]

open access: yes, 2004
The standard DFB laser optimisation method is critically investigated and a new design approach based on the effective cavity length is presented. By applying this method in a Erbium-Ytterbium co-doped fibre, pump-to-signal conversion ratio is increased ...
Hickey, L.M.B.   +5 more
core   +1 more source

Spacing-Switchable Multiwavelength Fiber Laser Based on Nonlinear Polarization Rotation and Brillouin Scattering in Photonic Crystal Fiber

open access: yesIEEE Photonics Journal, 2012
A new spacing-switchable multiwavelength erbium-doped fiber laser (EDFL) is demonstrated using switchable nonlinear polarization rotation (NPR) and stimulated Brillouin scattering (SBS) effects.
N. S. Shahabuddin   +3 more
doaj   +1 more source

Nanomaterial‐Incorporated Nonlinear Optical Waveguides Explored With All‐Fiber Multiphoton Polymerization

open access: yesAdvanced Optical Materials, Volume 14, Issue 35, 18 September 2026.
Nonlinear waveguides are fabricated via an all‐fiber‐based multiphoton polymerization approach incorporating upconversion nanoparticles (UCNPs), which enable both multiphoton absorption at telecommunication wavelengths and nonlinear saturable absorption operation.
Bowon Ryu   +7 more
wiley   +1 more source

230 mW of blue light from a thulium-doped upconversion fiber laser [PDF]

open access: yes, 1997
We demonstrate a powerful diode-pumped blue laser source, consisting of a 7W diode at 807nm that pumps a Nd:YAG laser giving 1.6W with good beam quality at 1123nm, and a thulium-doped upconversion fiber laser.
Tropper, A.C.   +5 more
core   +1 more source

High-power cladding-pumped Raman and erbium-ytterbium doped fibre sources

open access: yes, 2007
Raman fibres and rare-earth doped silica fibres have been investigated for many years as gain media for the amplification of optical signals in telecommunications thanks to their broad gain bandwidth. They are now widely used for that application.
Codemard, Christophe André
core   +1 more source

High‐Power Continuous‐Wave Optical Waveguiding in a Semiconductor Nanowire

open access: yesAdvanced Photonics Research, Volume 7, Issue 9, September 2026.
An in‐line fiber–nanowire–fiber configuration provides efficient coupling of 1550 nm continuous‐wave light into and out of a single CdS nanowire. The output power increases linearly with input power, reaching 1.8 W and corresponding to a guided power of 2.5 W, demonstrating watt‐level continuous‐wave optical waveguiding in a subwavelength semiconductor
Hongliang Dang   +5 more
wiley   +1 more source

1.2dB/cm gain in an erbium:lutecium co-doped Al/P silica fibre

open access: yes, 1998
We report a peak gain of 1.2dB/cm at 1535nm in an Erbium:Lutecium codoped Al/P/Si fibre fabricated using a standard MCVD and solution doping technique. This is the highest gain per unit length yet reported in an erbium doped fiber amplifier.
Caplen, J.E.   +3 more
core   +1 more source

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