Results 81 to 90 of about 453,893 (187)

Tunable, High Pulse Energy and Narrow Linewidth Gas‐Filled Fiber Laser Across Near‐ and Mid‐Infrared

Laser &Photonics Reviews, EarlyView.
A cascaded gas‐filled anti‐resonant hollow‐core fiber architecture enables broadly tunable infrared Raman lasers spanning ∼1.4–4.6 µm while maintaining microjoule‐level pulse energies and gigahertz‐level linewidths. The approach combines a wavelength‐tunable pump laser with optimized Raman frequency conversion, providing a compact route to high ...
Yazhou Wang, Marcello Meneghetti, Manoj K. Dasa, Timothy Bate, J. E. Antonio‐Lopez, Ian A. Davidson, Qiang Fu, Jaroslaw Rzegocki, Gregory T. Jasion, Francesco Poletti, Rodrigo Amezcua‐Correa, Christos Markos   +11 more
wiley   +1 more source

Three Cavity Tunable MEMS Fabry Perot Interferometer

Sensors, 2007
In this paper a four-mirror tunable micro electro-mechanical systems (MEMS)Fabry Perot Interferometer (FPI) concept is proposed with the mathematical model. Thespectral range of the proposed FPI lies in the infrared spectrum ranging from 2400 to 4018(nm).
Narayanswamy Sivakumar, Muthukumaran Packirisamy, Ankur Shah, Avinash Parashar   +3 more
doaj   +1 more source

Side‐DBR Guided Exciton‐Polariton Lasing With Near‐Field Mode Imaging in an InGaN Thin‐Film Ridge Waveguide

Laser &Photonics Reviews, EarlyView.
Room‐temperature lower‐polariton‐like lasing is realized in an InGaN/GaN thin‐film ridge cavity with lateral distributed Bragg reflectors. Near‐field optical microscopy distinguishes the transverse side‐DBR‐confined mode from a longitudinal photon‐like mode, while simulations reproduce their spatial profiles.
Wai Yuen Fu, Yuk Fai Cheung, Hoi Wai Choi   +2 more
wiley   +1 more source

Intensity Noise Dynamics in Terahertz Quantum Cascade Lasers

Laser &Photonics Reviews, EarlyView.
Intensity‐noise dynamics in terahertz quantum cascade lasers are investigated across single‐mode, dense‐comb and harmonic‐comb regimes using graphene thermoelectric detectors. Harmonic combs show ∼10% lower relative intensity noise, while RIN scales as P0−γ$P_0^{ - \gamma }$ with γ≈1.2$\gamma \approx 1.2$, revealing a crossover from spontaneous ...
M. Alejandro Justo‐Guerrero, Leonardo Viti, Vladimir Pushkarev, Lianhe Li, Edmund H. Linfield, Miriam S. Vitiello   +5 more
wiley   +1 more source

Room‐Temperature Polariton Condensation Into Superscar Modes in Growth‐Defined Triangular Micro‐Prism Resonators

Laser &Photonics Reviews, EarlyView.
High‐Q superscar modes in growth‐defined triangular GaN micro‐prism resonators enable strong exciton–photon coupling and room‐temperature polariton condensation, offering a scalable platform for integrated III‐nitride polariton devices. ABSTRACT Group III‐nitride semiconductors are regarded as key materials for realizing polariton devices operating at ...
Chan‐Young Sung, Jungwon Kim, Daegwang Choi, Hyun Gyu Song, Yong‐Hoon Cho   +4 more
wiley   +1 more source

Experimental demonstration of a suspended, diffractively coupled Fabry‚ Perot cavity [PDF]

, 2010
Diffraction gratings have been considered as input couplers for Fabry-Perot cavities in future gravitational wave detectors. We experimentally demonstrate the use of a triple-suspended, diffractively coupled cavity and examine conventional Pound-Drever ...
Tünnermann, A, Britzger, M., Kley, E., Danzmann, K., Plissi, M.V., Edgar, M., Brückner, F, Strain, K.A., Barr, B W, Britzger, M, Wardell, B., Nelson, J., Edgar, M P, Barr, B., Strain, K A, Schnabel, R., Barr, B.W., Burmeister, O., Plissi, M., Danzmann, K, Kley, E.-B, Nelson, J, Brückner, F., Kley, E-B, Burmeister, O, Tünnermann, A., Strain, K., Plissi, M V, Clausnitzer, T, Schnabel, R, Clausnitzer, T., Edgar, M.P., Kley, E.-B., A Tünnermann, B W Barr, K Danzmann, O Burmeister, M P Edgar, R Schnabel, F Brückner, M V Plissi, J Nelson, M Britzger, E-B Kley, K A Strain, T Clausnitzer   +45 more
core   +1 more source

On-Chip High-Finesse Fabry-Perot Microcavities for Optical Sensing and Quantum Information

Sensors, 2017
For applications in sensing and cavity-based quantum computing and metrology, open-access Fabry-Perot cavities—with an air or vacuum gap between a pair of high reflectance mirrors—offer important advantages compared to other types of microcavities.
Mohammad H. Bitarafan, Ray G. DeCorby
doaj   +1 more source

Heterogeneous Integration of Multi‐Band Mode‐Locked and Single‐Mode Lasers on an Extended Commercial SiN Platform

Laser &Photonics Reviews, EarlyView.
Micro‐transfer printing enables GaAs and InP gain materials to be integrated on a commercial silicon nitride photonic platform. The resulting chip supports O‐ and C‐band comb and single‐mode lasers, demonstrating a scalable route toward multi‐material, multi‐wavelength, and multifunctional integrated light sources.
Dongbo Wang, Tom Reep, Thi Ngoc Lam Tran, Stijn Poelman, Jing Zhang, Jose Carreira, Camiel Op de Beeck, Stijn Cuyvers, Michael Geiselmann, Maximilien Billet, Dries Van Thourhout, Gunther Roelkens, Bart Kuyken   +12 more
wiley   +1 more source

Broadband dispersion-engineered Bragg grating mirrors for integrated side-coupled Fabry–Pérot resonators

Scientific Reports
We present the design and demonstration of silicon nitride side-coupled Fabry–Pérot resonators employing both uniform and apodised distributed Bragg reflectors, for broadband dispersion engineering.
Davide Monopoli, S. Hadi Badri, Nicola Maraviglia, Artem S. Vorobev, Natale G. Pruiti, G. C. R. Devarapu, Marc Sorel, Giovanna Calò, Liam O’Faolain   +8 more
doaj   +1 more source

High-Temperature Sensor Based on Fabry-Perot Interferometer in Microfiber Tip

Sensors, 2018
A miniaturized tip Fabry-Perot interferometer (tip-FPI) is proposed for high-temperature sensing. It is simply fabricated for the first time by splicing a short length of microfiber (MF) to the cleaved end of a standard single mode fiber (SMF) with ...
Zhenshi Chen, Songsong Xiong, Shecheng Gao, Hui Zhang, Lei Wan, Xincheng Huang, Bingsen Huang, Yuanhua Feng, Weiping Liu, Zhaohui Li   +9 more
doaj   +1 more source