Spectroscopy of erbium-doped potassium double tungstate waveguides

Sergio A. Vázquez-Córdova, Shanmugam Aravazhi, Christos Grivas, Alexander M. Heuer, Christian Kränkel, Yean Sheng Yong, Sonia M. García-Blanco, Jennifer L. Herek, Markus Pollnau

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2 Citations (Scopus)

Abstract

We report the spectroscopy of crystalline waveguide amplifiers operating in the telecom C-band. Thin films of erbiumdoped gadolinium lutetium potassium double tungstate, KGdxLuyEr1-x-y (WO4)2, are grown by liquid-phase epitaxy onto undoped potassium yttrium double tungstate (KYW) substrates and micro-structured by Ar+-beam etching. Channel waveguides with erbium concentrations between 0.45-6.35 × 1020 cm-3 are characterized. The transition cross-sections of interest are estimated. The effect of energy-transfer up-conversion (ETU) is experimentally investigated. Microscopic and macroscopic ETU parameters are extracted from a simultaneous analysis of 20 decay curves of luminescence on the transition 4I13/24I15/2. The correlation between ETU and the doping concentration is studied. Pump excited-state absorption (ESA) on the transition 4I11/24F7/2 is investigated via a direct ESA measurement using a double-modulation pump-probe technique. The effect of ESA is studied for different pump wavelengths. The pump wavelength of 984.5 nm is found to be favorable for the complete range of erbium concentrations.

Original languageEnglish
Title of host publicationIntegrated Optics: Devices, Materials, and Technologies XXI
PublisherSPIE
Volume10106
ISBN (Electronic)9781510606531
DOIs
Publication statusPublished - 16 Feb 2017
EventSPIE Optoelectronics and Photonic Materials and Devices Conference, OPTO 2017 - The Moscone Center, San Francisco, United States
Duration: 30 Jan 20171 Feb 2017

Conference

ConferenceSPIE Optoelectronics and Photonic Materials and Devices Conference, OPTO 2017
Abbreviated titleOPTO
CountryUnited States
CitySan Francisco
Period30/01/171/02/17

Fingerprint

Erbium
tungstates
Potassium
Upconversion
erbium
Pump
Waveguide
Spectroscopy
potassium
Waveguides
Excited States
Energy Transfer
Excited states
Pumps
Energy transfer
pumps
waveguides
Absorption
energy transfer
Electron transitions

Keywords

  • Crystalline waveguides
  • EDWA
  • Rare-earth doped
  • Waveguide amplifiers

Cite this

Vázquez-Córdova, S. A., Aravazhi, S., Grivas, C., Heuer, A. M., Kränkel, C., Yong, Y. S., ... Pollnau, M. (2017). Spectroscopy of erbium-doped potassium double tungstate waveguides. In Integrated Optics: Devices, Materials, and Technologies XXI (Vol. 10106). [1010604] SPIE. https://doi.org/10.1117/12.2252488
Vázquez-Córdova, Sergio A. ; Aravazhi, Shanmugam ; Grivas, Christos ; Heuer, Alexander M. ; Kränkel, Christian ; Yong, Yean Sheng ; García-Blanco, Sonia M. ; Herek, Jennifer L. ; Pollnau, Markus. / Spectroscopy of erbium-doped potassium double tungstate waveguides. Integrated Optics: Devices, Materials, and Technologies XXI. Vol. 10106 SPIE, 2017.
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abstract = "We report the spectroscopy of crystalline waveguide amplifiers operating in the telecom C-band. Thin films of erbiumdoped gadolinium lutetium potassium double tungstate, KGdxLuyEr1-x-y (WO4)2, are grown by liquid-phase epitaxy onto undoped potassium yttrium double tungstate (KYW) substrates and micro-structured by Ar+-beam etching. Channel waveguides with erbium concentrations between 0.45-6.35 × 1020 cm-3 are characterized. The transition cross-sections of interest are estimated. The effect of energy-transfer up-conversion (ETU) is experimentally investigated. Microscopic and macroscopic ETU parameters are extracted from a simultaneous analysis of 20 decay curves of luminescence on the transition 4I13/2 → 4I15/2. The correlation between ETU and the doping concentration is studied. Pump excited-state absorption (ESA) on the transition 4I11/2 → 4F7/2 is investigated via a direct ESA measurement using a double-modulation pump-probe technique. The effect of ESA is studied for different pump wavelengths. The pump wavelength of 984.5 nm is found to be favorable for the complete range of erbium concentrations.",
keywords = "Crystalline waveguides, EDWA, Rare-earth doped, Waveguide amplifiers",
author = "V{\'a}zquez-C{\'o}rdova, {Sergio A.} and Shanmugam Aravazhi and Christos Grivas and Heuer, {Alexander M.} and Christian Kr{\"a}nkel and Yong, {Yean Sheng} and Garc{\'i}a-Blanco, {Sonia M.} and Herek, {Jennifer L.} and Markus Pollnau",
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Vázquez-Córdova, SA, Aravazhi, S, Grivas, C, Heuer, AM, Kränkel, C, Yong, YS, García-Blanco, SM, Herek, JL & Pollnau, M 2017, Spectroscopy of erbium-doped potassium double tungstate waveguides. in Integrated Optics: Devices, Materials, and Technologies XXI. vol. 10106, 1010604, SPIE, SPIE Optoelectronics and Photonic Materials and Devices Conference, OPTO 2017, San Francisco, United States, 30/01/17. https://doi.org/10.1117/12.2252488

Spectroscopy of erbium-doped potassium double tungstate waveguides. / Vázquez-Córdova, Sergio A.; Aravazhi, Shanmugam; Grivas, Christos; Heuer, Alexander M.; Kränkel, Christian; Yong, Yean Sheng; García-Blanco, Sonia M.; Herek, Jennifer L.; Pollnau, Markus.

Integrated Optics: Devices, Materials, and Technologies XXI. Vol. 10106 SPIE, 2017. 1010604.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

TY - GEN

T1 - Spectroscopy of erbium-doped potassium double tungstate waveguides

AU - Vázquez-Córdova, Sergio A.

AU - Aravazhi, Shanmugam

AU - Grivas, Christos

AU - Heuer, Alexander M.

AU - Kränkel, Christian

AU - Yong, Yean Sheng

AU - García-Blanco, Sonia M.

AU - Herek, Jennifer L.

AU - Pollnau, Markus

PY - 2017/2/16

Y1 - 2017/2/16

N2 - We report the spectroscopy of crystalline waveguide amplifiers operating in the telecom C-band. Thin films of erbiumdoped gadolinium lutetium potassium double tungstate, KGdxLuyEr1-x-y (WO4)2, are grown by liquid-phase epitaxy onto undoped potassium yttrium double tungstate (KYW) substrates and micro-structured by Ar+-beam etching. Channel waveguides with erbium concentrations between 0.45-6.35 × 1020 cm-3 are characterized. The transition cross-sections of interest are estimated. The effect of energy-transfer up-conversion (ETU) is experimentally investigated. Microscopic and macroscopic ETU parameters are extracted from a simultaneous analysis of 20 decay curves of luminescence on the transition 4I13/2 → 4I15/2. The correlation between ETU and the doping concentration is studied. Pump excited-state absorption (ESA) on the transition 4I11/2 → 4F7/2 is investigated via a direct ESA measurement using a double-modulation pump-probe technique. The effect of ESA is studied for different pump wavelengths. The pump wavelength of 984.5 nm is found to be favorable for the complete range of erbium concentrations.

AB - We report the spectroscopy of crystalline waveguide amplifiers operating in the telecom C-band. Thin films of erbiumdoped gadolinium lutetium potassium double tungstate, KGdxLuyEr1-x-y (WO4)2, are grown by liquid-phase epitaxy onto undoped potassium yttrium double tungstate (KYW) substrates and micro-structured by Ar+-beam etching. Channel waveguides with erbium concentrations between 0.45-6.35 × 1020 cm-3 are characterized. The transition cross-sections of interest are estimated. The effect of energy-transfer up-conversion (ETU) is experimentally investigated. Microscopic and macroscopic ETU parameters are extracted from a simultaneous analysis of 20 decay curves of luminescence on the transition 4I13/2 → 4I15/2. The correlation between ETU and the doping concentration is studied. Pump excited-state absorption (ESA) on the transition 4I11/2 → 4F7/2 is investigated via a direct ESA measurement using a double-modulation pump-probe technique. The effect of ESA is studied for different pump wavelengths. The pump wavelength of 984.5 nm is found to be favorable for the complete range of erbium concentrations.

KW - Crystalline waveguides

KW - EDWA

KW - Rare-earth doped

KW - Waveguide amplifiers

UR - http://www.scopus.com/inward/record.url?scp=85020313550&partnerID=8YFLogxK

U2 - 10.1117/12.2252488

DO - 10.1117/12.2252488

M3 - Conference contribution

AN - SCOPUS:85020313550

VL - 10106

BT - Integrated Optics: Devices, Materials, and Technologies XXI

PB - SPIE

ER -

Vázquez-Córdova SA, Aravazhi S, Grivas C, Heuer AM, Kränkel C, Yong YS et al. Spectroscopy of erbium-doped potassium double tungstate waveguides. In Integrated Optics: Devices, Materials, and Technologies XXI. Vol. 10106. SPIE. 2017. 1010604 https://doi.org/10.1117/12.2252488