Optical Switching and Photoluminescence in Erbium Implanted Vanadium Dioxide Thin Films

MRS Proceedings ◽

10.1557/opl.2013.544 ◽

2013 ◽

Vol 1577 ◽

Author(s):

Herianto Lim ◽

Nikolas Stavrias ◽

Jeffrey C. McCallum ◽

Robert E. Marvel ◽

Richard F. Haglund

Keyword(s):

Vanadium Dioxide ◽

Optical Switching ◽

Optical Switch ◽

Optical Amplifier ◽

Optical Amplification ◽

Fiber Optic Communication ◽

Two Phases ◽

Optic Communication ◽

Post Implantation ◽

Vanadium Dioxide Thin Films

ABSTRACTVanadium dioxide (VO2) is a promising material for an optical switch due to the ultrafast and reversible transition between its two phases with contrasting optical, as well as electronic, properties. Meanwhile, erbium (Er3+) has been a standard optical amplifier for the current fiber-optic communication system. Hence, a combination of the two could be expected to make an optical switch capable of simultaneous optical amplification. In the present work, the optical switching and photoluminescence of Er-implanted VO2 were successfully demonstrated. Post-implantation annealing at 800°C or above was seen crucial for the activation of the Er centers in the VO2 crystals.

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Tunable Infrared Optical Switch Based on Vanadium Dioxide

Nanomaterials ◽

10.3390/nano11112988 ◽

2021 ◽

Vol 11 (11) ◽

pp. 2988

Author(s):

Qi Wang ◽

Shijie Zhang ◽

Chen Wang ◽

Rui Li ◽

Tianhan Cai ◽

...

Keyword(s):

Thin Film ◽

Vanadium Dioxide ◽

Optical Switching ◽

Modulation Depth ◽

Optical Switch ◽

Extinction Ratio ◽

Infrared Region ◽

Metallic Phase ◽

Ultrafast Switching ◽

Difference Time

A tunable infrared optical switch based on a plasmonic structure consisting of aluminum nanoarrays with a thin film of vanadium dioxide is proposed. This optical switch can realize arbitrary wavelength-selective optical switching in the mid-infrared region by altering the radii of the aluminum nanoarrays. Furthermore, since vanadium dioxide transforms from its low-temperature insulator phase to a high-temperature metallic phase when heated or applied voltage, the optical switch can achieve two-way switching of its “ON” and “OFF” modes. Finite-difference time-domain software is used to simulate the performance of the proposed infrared optical switch. Simulation results show that the switch offers excellent optical performances, that the modulation depth can reach up to 99.4%, and that the extinction ratio exceeds −22.16 dB. In addition, the phase transition time of vanadium dioxide is on the femtosecond scale, which means that this optical switch based on a vanadium dioxide thin film can be used for ultrafast switching.

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1×6 Compound-Driven Optical MEMS Device for Multifunctional Fiber Optic Communication

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.712-715.2210 ◽

2013 ◽

Vol 712-715 ◽

pp. 2210-2215

Author(s):

Ying Jun Chen ◽

Yan Mei Li ◽

Qing Hua Chen ◽

Wen Gang Wu

Keyword(s):

Optical Fiber ◽

Insertion Loss ◽

Fiber Optic ◽

Optical Switch ◽

Optical Power ◽

Electrostatic Actuator ◽

Optical Mems ◽

Fiber Optic Communication ◽

Mems Device ◽

Optic Communication

A 1×6 compound-driven MEMS-based optical device with optical switch and variable optical power attenuating functions has been proposed to optimally serve multifunctional optical fiber-based networking applications. The device manipulates the light with binary-slope mirrors driven by compound electrostatic actuator. The optical models for attenuating are investigated. Performances of the fabricated devices assembled with ball-lensed fibers are measured and discussed. Measurements reveal that the insertion loss of the device is less than 2.7 dB and the controllable attenuation range is more than 40 dB for the switching and attenuation function, respectively.

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Vanadium Dioxide Thin Films for Thermo-Optical Switching Applications

MRS Proceedings ◽

10.1557/proc-785-d10.4 ◽

2003 ◽

Vol 785 ◽

Cited By ~ 4

Author(s):

Lijun Jiang ◽

William N. Carr

Keyword(s):

Thin Films ◽

Phase Transition ◽

Vanadium Dioxide ◽

Optical Switching ◽

Abrupt Change ◽

Metal Layer ◽

Heating And Cooling ◽

Optical Switching Devices ◽

Lift Off ◽

Vanadium Dioxide Thin Films

ABSTRACTVanadium dioxide (VO2) thin films were fabricated by e-beam evaporation of vanadium thin films followed by thermal oxidation in oxygen ambient. The properties of the VO2 films were investigated for thermo-optical switching applications. Synthesized VO2 film displays a phase transition at 65 – 68 °C. It exhibits an abrupt change in optical reflectivity over the phase transition temperature range. Results for VO2 on a highly reflective metal layer are strongly dependent on the VO2 thickness. The optical switching has a major hysteresis of about 15 °C between the heating and cooling branches. The evolution of the surface morphology with the oxidation time was studied with a SEM. The VO2 film was patterned on microplatforms by metal lift-off technique. We conclude that the evaporation followed by oxidation is an effective method to produce active VO2 film for thermo-optical switching devices.

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Comparative Performance of Modulation Formats using RAMAN-EDFA Hybrid Optical Amplifier in Fiber Optic Communication System

Journal of Optical Communications ◽

10.1515/joc-2016-0081 ◽

2017 ◽

Vol 38 (2) ◽

Cited By ~ 1

Author(s):

Garima Arora ◽

Sanjeev Dewra

Keyword(s):

Wavelength Division Multiplexing ◽

Fiber Amplifier ◽

Optical Amplifier ◽

Comparative Performance ◽

Modulation Formats ◽

Erbium Doped Fiber Amplifier ◽

Wavelength Division ◽

Transmission Length ◽

Fiber Optic Communication ◽

Optic Communication

AbstractThis paper presents the comparison of various modulation formats for 64×10 Gbps dense wavelength division multiplexing system using Raman–erbium-doped fiber amplifier optical amplifier with 100 GHz interval. We evaluate the suitability of various data formats like return-to-zero (RZ) raised cosine (RC), RZ rectangular (Rect), non-return-to-zero (NRZ) RC and NRZ-Rect for an optical transmission link. The results have been carried out by evaluating the value of quality factor, bit error rate (BER) and average opening of an eye. It is found that using NRZ-Rect data format, the signal can travel up to transmission length of 234 km with acceptable BER (1.10e

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