Polymer/silica hybrid waveguide Y-branch power splitter with loss compensation based on NaYF4:Er3+, Yb3+ nanocrystals*

Fu, Yuewu; Sun, Tonghe; Zhang, Meiling; Zhang, Xucheng; Wang, Fei; Zhang, Daming

doi:10.1088/1674-1056/ab3f24

Cited by 11 publications

(1 citation statement)

References 25 publications

(25 reference statements)

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“…Most recently, we realized LED-pumping NDWAs using mononuclear Nd 3+ complex-doped polymeric gain media, which achieved relative gains of 2.0–3.0 dB/cm under a 405 nm LED pump with dozens or hundreds of milliwatts. , However, until now, only mononuclear lanthanide complexes were used for RDWAs. Obviously, despite waveguide structure optimization, e.g., evanescent-field configuration, − the gain effect obtained through mononuclear Nd 3+ complexes under LED pumping is still not satisfied. It can be noticed that since the pumping power of LEDs is far lower than that of laser resources, LED excitation requires remarkably higher capabilities of Nd 3+ complexes in absorption and energy utilization.…”

Section: Introductionmentioning

confidence: 99%

Phosphine Oxide-Nd³⁺ Coordination Chains with Cumulated Output Enable Efficient LED-Pumping Optical Amplification

Man,

Shi,

et al. 2024

J. Am. Chem. Soc.

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Section: Introductionmentioning

confidence: 99%

Phosphine Oxide-Nd³⁺ Coordination Chains with Cumulated Output Enable Efficient LED-Pumping Optical Amplification

Man,

Shi,

et al. 2024

J. Am. Chem. Soc.

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High‐Gain of Nd^III Complex Doped Optical Waveguide Amplifiers at 1.06 and 1.31 µm Wavelengths Based on Intramolecular Energy Transfer Mechanism

Lin

Man

et al. 2023

Advanced Materials

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Chelate phosphine oxide ligand (9,9‐dimethyl‐9H‐xanthene‐4,5‐diyl) bis (diphenylphosphineoxide) (XPO) is prepared as a neutral ligand to synthesize complex Nd (TTA)3 (XPO) (TTA = 2‐thenoyltrifluoroacetone). An appropriate energy gap between the XPO and TTA ligands, which can support two additional energy transfer routines from the first excited triplet state (T1) energy level of the XPO to that of the TTA, improves energy transfer in the Nd complex. Based on intramolecular energy transfer mechanism, optical gains at 1.06 and 1.31 µm are demonstrated in Nd (TTA)3 (XPO)‐doped polymer waveguides with the excitation of low‐power light‐emitting diodes (LEDs) instead of semiconductor lasers as pump sources. Using the vertical top‐pumping mode of a 365 nm LED, relative gains of 22.5 and 8.4 dB cm−1 are obtained at 1.06 and 1.31 µm, respectively, in a 0.2 cm long embedded waveguide with a cross‐section of 8 × 5 µm2. The active core layer is Nd (TTA)3 (XPO)‐doped SU‐8 polymer. Moreover, relative gains are achieved in evanescent‐field waveguide with a cross‐section of 6 × 4 µm2. The 21.0 and 5.6 dB cm−1 relative gains are achieved at 1.06 and 1.31 µm, respectively, with a net gain of 13.8 ± 0.3 dB cm−1 obtained at 1.06 µm in a 0.9 cm long SU‐8 waveguide with Nd (TTA)3 (XPO)‐doped polymethylmethacrylate as upper cladding.

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Demonstration of Optical Gain at 1535 nm Based on Er^III Complex‐Doped Polymer Waveguides Under Light‐Emitting Diode Excitation

He,

Man,

Shi

et al. 2024

Advanced Optical Materials

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A near‐infrared luminescent complex Er(DBTTA)3(DBFDPO) [where DBTTA = dibenzotetrathienoacene; DBFDPO = 4,6‐bis (diphenylphosphoryl) dibenzofuran] is synthesized. Based on the intramolecular energy transfer between organic ligands and Er3+ ions, optical gains at 1535 nm are demonstrated in Er(DBTTA)3(DBFDPO)‐doped polymer waveguides under the excitation of light‐emitting diodes (LEDs) instead of laser pumping. Relative gains of 6.4, 8.2, and 10.6 dB are obtained in 1 cm long waveguides with cross‐sectional dimensions of 6 × 4, 4 × 4, and 2 × 3 µm2 respectively, using the vertical top‐pumping mode of a 365 nm LED with 462 mW. Incorporating an ≈100 nm thick aluminum reflector grown under the lower cladding, enhanced the optical gain to 11.6 dB cm−1 in a waveguide with a cross‐section of 4 × 4 µm2, and an internal gain of ≈7.4 dB cm−1 is achieved. By relying on the intramolecular energy transfer and LED top‐pumping technology, the upconversion luminescence of Er3+ ions and thermal damage to polymer waveguides caused by the high power density of laser pumping can be effectively reduced. The complex Er(DBTTA)3(DBFDPO)‐doped polymer can be spin‐coated on different types of waveguides to compensate for optical losses at 1.5 µm and is expected to have a critical role in planar photonic integration.

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Polymer/silica hybrid waveguide Y-branch power splitter with loss compensation based on NaYF₄:Er³⁺, Yb³⁺ nanocrystals*

Cited by 11 publications

References 25 publications

Phosphine Oxide-Nd³⁺ Coordination Chains with Cumulated Output Enable Efficient LED-Pumping Optical Amplification

Phosphine Oxide-Nd³⁺ Coordination Chains with Cumulated Output Enable Efficient LED-Pumping Optical Amplification

High‐Gain of Nd^III Complex Doped Optical Waveguide Amplifiers at 1.06 and 1.31 µm Wavelengths Based on Intramolecular Energy Transfer Mechanism

Demonstration of Optical Gain at 1535 nm Based on Er^III Complex‐Doped Polymer Waveguides Under Light‐Emitting Diode Excitation

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Polymer/silica hybrid waveguide Y-branch power splitter with loss compensation based on NaYF4:Er3+, Yb3+ nanocrystals*

Cited by 11 publications

References 25 publications

Phosphine Oxide-Nd3+ Coordination Chains with Cumulated Output Enable Efficient LED-Pumping Optical Amplification

Phosphine Oxide-Nd3+ Coordination Chains with Cumulated Output Enable Efficient LED-Pumping Optical Amplification

High‐Gain of NdIII Complex Doped Optical Waveguide Amplifiers at 1.06 and 1.31 µm Wavelengths Based on Intramolecular Energy Transfer Mechanism

Demonstration of Optical Gain at 1535 nm Based on ErIII Complex‐Doped Polymer Waveguides Under Light‐Emitting Diode Excitation

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Product

Resources

About

Polymer/silica hybrid waveguide Y-branch power splitter with loss compensation based on NaYF₄:Er³⁺, Yb³⁺ nanocrystals*

Phosphine Oxide-Nd³⁺ Coordination Chains with Cumulated Output Enable Efficient LED-Pumping Optical Amplification

Phosphine Oxide-Nd³⁺ Coordination Chains with Cumulated Output Enable Efficient LED-Pumping Optical Amplification

High‐Gain of Nd^III Complex Doped Optical Waveguide Amplifiers at 1.06 and 1.31 µm Wavelengths Based on Intramolecular Energy Transfer Mechanism

Demonstration of Optical Gain at 1535 nm Based on Er^III Complex‐Doped Polymer Waveguides Under Light‐Emitting Diode Excitation