Optical waveguide amplifiers based on NaYF_4: Er^3+, Yb^3+ NPs-PMMA covalent-linking nanocomposites

Wang, Tianjiao; Zhao, Dan; Zhang, Meiling; Yin, Jiao; Song, Weiye; Jia, Zhixu; Wang, Xibin; Qin, Guanshi; Qin, Weiping; Wang, Fei; Zhang, Daming

doi:10.1364/ome.5.000469

Cited by 34 publications

(16 citation statements)

References 21 publications

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“…Compared with earlier reports of ~1.77 to 1.87 dB/cm using an identical material system (i.e. NaYF 4 nanocrystal hosts in various polymers) at comparable coupled pump powers of 80 mW 16, 25 , our reported unit length gain is ~3.5 times higher. Using alternative hosts such as BaYF 5 which has the potential for having both bright visible and IR emissions, the reported unit length gain was in the range of ~2.72 to 3.46 dB/cm 9, 26 .…”

Section: Design and Results Of Low-loss Nanostructured Pwacontrasting

confidence: 73%

Low Loss Nanostructured Polymers for Chip-scale Waveguide Amplifiers

Chen

Zhao

Sun

et al. 2017

Sci Rep

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On-chip waveguide amplifiers offer higher gain in small device sizes and better integration with photonic devices than the commonly available fiber amplifiers. However, on-chip amplifiers have yet to make its way into the mainstream due to the limited availability of materials with ideal light guiding and amplification properties. A low-loss nanostructured on-chip channel polymeric waveguide amplifier was designed, characterized, fabricated and its gain experimentally measured at telecommunication wavelength. The active polymeric waveguide core comprises of NaYF4:Yb,Er,Ce core-shell nanocrystals dispersed within a SU8 polymer, where the nanoparticle interfacial characteristics were tailored using hydrolyzed polyhedral oligomeric silsesquioxane-graft-poly(methyl methacrylate) to improve particle dispersion. Both the enhanced IR emission intensity from our nanocrystals using a tri-dopant scheme and the reduced scattering losses from our excellent particle dispersion at a high solid loading of 6.0 vol% contributed to the outstanding optical performance of our polymeric waveguide. We achieved one of the highest reported gain of 6.6 dB/cm using a relatively low coupled pump power of 80 mW. These polymeric waveguide amplifiers offer greater promise for integrated optical circuits due to their processability and integration advantages which will play a key role in the emerging areas of flexible communication and optoelectronic devices.

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Section: Design and Results Of Low-loss Nanostructured Pwacontrasting

confidence: 73%

Low Loss Nanostructured Polymers for Chip-scale Waveguide Amplifiers

Chen

Zhao

Sun

et al. 2017

Sci Rep

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“…In 2015, Tianjiao Wang et al synthesized NaYF 4 :Er 3+ , Yb 3+ NPs-PMMA covalent-linking nanocomposites with core only using a high temperature thermal decomposition approach, and fabricated the waveguide amplifiers. A relative optical gain of 7.6 dB was obtained at 1540 nm in a 15 mm-long waveguide21. In this case, the doping mass concentration of NPs in the polymer matrix could be up to 1%, which is larger than previously published results.…”

mentioning

confidence: 56%

High-gain polymer optical waveguide amplifiers based on core-shell NaYF4/NaLuF4: Yb3+, Er3+ NPs-PMMA covalent-linking nanocomposites

Zhang

Wang

et al. 2016

Sci Rep

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Waveguide amplifiers have always been significant key components for optical communication. Unfortunately, the low concentration of rare earth ions doped in the host material and the inadequate optimization of the waveguide structure have been the common bottleneck limitations. Here, a novel material, NaYF4/NaLuF4: 20% Yb3+, 2% Er3+ nanoparticle-Polymeric Methyl Methacrylate covalent-linking nanocomposite, was synthesized. The concentrations of Er3+ and Yb3+ doping increased an order of magnitude. Under a 980 nm laser excitation, highly efficient emission at 1.53 μm was obtained. The characteristic parameters of the single mode waveguide were carefully designed and optimized by using a finite difference method. A formulized iteration method is presented for solving the rate equations and the propagation equations of the EYCDWA, and both the steady state behavior and the gain were numerically simulated. The optimal Er3+ and Yb3+ concentrations are 2.8 × 1026 m−3 and 2.8 × 1027 m−3, and the optimal waveguide length is 1.3 cm. Both theoretical and experimental results indicated that, for an input signal power of 0.1 mW and a pump power of 400 mW, a net gain of 15.1 dB at 1530 nm is demonstrated. This result is the highest gain ever reported in polymer-based waveguide amplifiers doped with inorganic Er3+-Yb3+ codoped nanocrystals.

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“…This is beneficial for improving the performance of the EO device. Moreover, the performance of the device can be further improved by introducing some gain materials with better performance and EO materials with larger EO coefficients [27], [33], [36], [37].…”

Section: Analysis Of Eo Modulation Performancementioning

confidence: 99%

“…The waveguide is based on SU-8 material, which has been widely used in electro-optic modulator and optical waveguide amplifier [26], [30], [31]. Here SU-8 doped with NaYF4:Er 3+ , Yb 3+ nanoparticles was chosen as the gain medium, because the nanoparticles with diminutive size show the advantages of adjustable luminescence, narrow bandwidth of the emission spectrum, low phonon energy, resistance to photobleaching, long fluorescent lifetime and low noise compared with the traditional dye material [32], [33]. SU-8 doped with chromophore DR19 was selected as the EO material.…”

Section: Introductionmentioning

confidence: 99%

On-Chip Electro-Optic Modulator With Loss Compensation Based on Polymeric Active-Integrated Waveguides

Zhang

Wang

2020

IEEE Access

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In this paper, an on-chip electro-optic (EO) modulator with loss compensation based on polymeric active-integrated waveguides was demonstrated. An erbium-doped waveguide amplifier was investigated and integrated with the EO modulator to compensate for signal loss. Polymeric active-integrated waveguides were based on the Mach-Zehnder interferometer structure, which consists of an amplified waveguide formed by two symmetric Y-junction branches and an EO waveguide formed by two decoupled waveguide arms. The dimensions of the polymeric active-integrated waveguides and the modulator were carefully designed and simulated. Moreover, a six-level spectroscopic model pumped at 980 nm was presented. The rate equations and propagation equations were solved, and the gain characteristics were simulated. The internal gain of 4.65 dB was achieved when the signal power was 0.1 mW at 1550 nm, the pump power was 100 mW at 980 nm, the Er 3+ concentration was 9.3×10 25 /m 3 , and the Yb 3+ concentration was 8.6×10 26 /m 3 in one Y-junction branch with a length of 1.5 cm. With the integrated waveguide amplifier, the loss of the EO modulator can be compensated at 9.3 dB in the two symmetric Y-junction branches. The light output intensity was also statistically presented. The proposed device with active-integrated waveguides could be used in polymer-based photonics integrated circuits. INDEX TERMS Integrated optics, electro-optic modulator, waveguide amplifier, polymer waveguides.

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Optical waveguide amplifiers based on NaYF_4: Er^3+, Yb^3+ NPs-PMMA covalent-linking nanocomposites

Cited by 34 publications

References 21 publications

Low Loss Nanostructured Polymers for Chip-scale Waveguide Amplifiers

Low Loss Nanostructured Polymers for Chip-scale Waveguide Amplifiers

High-gain polymer optical waveguide amplifiers based on core-shell NaYF4/NaLuF4: Yb3+, Er3+ NPs-PMMA covalent-linking nanocomposites

On-Chip Electro-Optic Modulator With Loss Compensation Based on Polymeric Active-Integrated Waveguides

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