Results 11 to 20 of about 24,819 (212)

Spatio-temporal isolator in lithium niobate on insulator

Opto-Electronic Science, 2023
In this contribution, we simulate, design, and experimentally demonstrate an integrated optical isolator based on spatiotemporal modulation in the thin-film lithium niobate on an insulator waveguide platform.
Haijin Huang, Armandas Balčytis, Aditya Dubey, Andreas Boes, Thach G. Nguyen, Guanghui Ren, Mengxi Tan, Arnan Mitchell   +7 more
doaj   +1 more source

Deeply Etched Inner-Cavity Pit Reflector

IEEE Photonics Journal, 2017
A deeply etched pit reflector is presented in this paper. The pit is not depth sensitive and has a comparable reflection and loss to a slot. Moreover, a two-section 750 ${\mu }{\text {m}}$ laser cavity based on the pits is demonstrated.
M. Dernaika, L. Caro, N. P. Kelly, J. K. Alexander, F. Dubois, P. E. Morrissey, F. H. Peters   +6 more
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Integrated Raman Laser: A Review of the Last Two Decades

Micromachines, 2020
Important accomplishments concerning an integrated laser source based on stimulated Raman scattering (SRS) have been achieved in the last two decades in the fields of photonics, microphotonics and nanophotonics.
Maria Antonietta Ferrara, Luigi Sirleto
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Design and Analysis of XOR Logic Gate Based on Two-Photon Absorption

MATEC Web of Conferences, 2016
Two-photon absorption with high intensity pump beam occurs in a SOA depends on fast phase change of a weak probe signal. This work analysed optical XOR logic function using two-photon absorption induced fast phase change. A rate equation for SOA and both
Nazir N.S., Wahid M.H.A., Hambali N.A.M.A., Shahimin M.M., Khairuddin N.Z., Hasanuddin N.H., Ramli M.M.   +6 more
doaj   +1 more source

Inverse Scattering Method Design of Regrowth-Free Single-Mode Semiconductor Lasers Using Pit Perturbations for Monolithic Integration

IEEE Photonics Journal, 2018
An inverse scattering method is used to design regrowth-free single-mode lasers, using etch depth insensitive pits as perturbations in the laser cavity. These pit perturbations are circular holes etched into the waveguide of each laser to a depth 0.8$\mu
Kevin Shortiss, Mohamad Dernaika, Ludovic Caro, Masoud Seifikar, Frank H. Peters   +4 more
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Investigation of All-photonic Multiple Signals Format Converter to Carrier- suppressed Signals

MATEC Web of Conferences, 2016
Advance modulation format such as carrier suppressed return to zero (CSRZ) is used in several optical communication systems. The generation of CSRZ signal is reported in this paper by means of allphotonics format converter to its suppressed carrier ...
Khairuddin N.Z., Wahid M.H.A., Hambali N.A.M.A., Shahimin M.M., Nazir N.S., Hasanuddin N.H., Ramli M. Muhammad.   +6 more
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ZnSe Light Emitting Diode Quantum Efficiency and Emission Characterization

MATEC Web of Conferences, 2016
ZnSe has demonstrated as a potential candidate in realizing advance LED in some appications for current and future works that utilize a cheaper preparation technique. Blue and white LEDs have been shown to spread across compound semiconductors.
Sahbudin U.K., Wahid M.H.A., Poopalan P., Hambali N.A.M.A., Shahimin M.M., Ariffin S.N., Saidi N.N.A., Ramli M.M.   +7 more
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Breakthroughs in Photonics 2013: Toward Feedback-Controlled Integrated Photonics

IEEE Photonics Journal, 2014
We present an overview of the main achievements obtained in 2013 on the monitoring, stabilization, and feedback loop control of passive and active photonic integrated circuits.
F. Morichetti, S. Grillanda, A. Melloni
doaj   +1 more source

Development of ZnO Infrared LED and Its Emissivity

MATEC Web of Conferences, 2016
This paper provides an investigation of the design and characterization of zinc oxide (ZnO) in infrared light emitting diode (LED) application. Zinc oxide has been proved as one of the material that consists of wide range of electrical and optical ...
Saidi N.N.A., Wahid M.H.A., Poopalan P., Hambali N.A.M.A., Shahimin M.M., Sahbudin U.K., Ariffin S.N., Ramli Muhammad M.   +7 more
doaj   +1 more source

Modification of Level Dependent ASE-Signal Beat Noise by Optical and Electrical Filtering in Optically Preamplified Direct Detection Receivers

IEEE Photonics Journal, 2018
We derive compact equations describing the modification of amplified spontaneous emission signal beat noise arising from optical and electrical filtering in optically preamplified direct detection receivers.
J. Witzens, J. Muller, A. Moscoso-Martir
doaj   +1 more source