On-Chip Er: Ta2O5 optical pulse amplifier
On-Chip Er: Ta2O5 optical pulse amplifier
Erbium ions doped in tantalum pentoxide (Er:Ta2O5) offer a promising foundation for achieving efficient optical amplification of telecommunication signals in photonic integrated circuits (PICs). In this paper, an on-chip Er:Ta2O5 waveguide optical pulse amplifier operating at 1550 nm wavelength band (C-band) is reported. Silica-clad Er: Ta2O5 rib waveguides were fabricated using RF magnetron sputtered film patterned by photolithography and dry-etched by Ar-ion beam milling. On-chip amplification of continuous wave (CW) and pulsed signals in C-band were demonstrated. Furthermore, the Er: Ta2O5 chip was evaluated for real-time optical communication by transmitting data streams in baseband and radio-over-fiber (RoF) schemes. The transmitted data was decoded and processed to determine the bit error rate (BER). The low BER values highlight the potential of the Er: Ta2O5 platform for high-speed optical communication applications.
Vaid, Harsh
da4d3e3d-7c3c-4ae1-9679-e4e7ee301992
Saxena, Sharashti
a76fb357-8cd9-4600-ae6e-6cd86bf23de2
Dhawan, Rajveer
dabeed50-f586-4903-913c-4d78d6154af1
Senthil Murugan, Ganapathy
a867686e-0535-46cc-ad85-c2342086b25b
Wilkinson, James S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Choudhary, Amol
538251a7-046a-4b90-830a-617158c97ab8
22 May 2025
Vaid, Harsh
da4d3e3d-7c3c-4ae1-9679-e4e7ee301992
Saxena, Sharashti
a76fb357-8cd9-4600-ae6e-6cd86bf23de2
Dhawan, Rajveer
dabeed50-f586-4903-913c-4d78d6154af1
Senthil Murugan, Ganapathy
a867686e-0535-46cc-ad85-c2342086b25b
Wilkinson, James S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Choudhary, Amol
538251a7-046a-4b90-830a-617158c97ab8
Vaid, Harsh, Saxena, Sharashti, Dhawan, Rajveer, Senthil Murugan, Ganapathy, Wilkinson, James S. and Choudhary, Amol
(2025)
On-Chip Er: Ta2O5 optical pulse amplifier.
Optical Materials, 166, [117184].
(doi:10.1016/j.optmat.2025.117184).
Abstract
Erbium ions doped in tantalum pentoxide (Er:Ta2O5) offer a promising foundation for achieving efficient optical amplification of telecommunication signals in photonic integrated circuits (PICs). In this paper, an on-chip Er:Ta2O5 waveguide optical pulse amplifier operating at 1550 nm wavelength band (C-band) is reported. Silica-clad Er: Ta2O5 rib waveguides were fabricated using RF magnetron sputtered film patterned by photolithography and dry-etched by Ar-ion beam milling. On-chip amplification of continuous wave (CW) and pulsed signals in C-band were demonstrated. Furthermore, the Er: Ta2O5 chip was evaluated for real-time optical communication by transmitting data streams in baseband and radio-over-fiber (RoF) schemes. The transmitted data was decoded and processed to determine the bit error rate (BER). The low BER values highlight the potential of the Er: Ta2O5 platform for high-speed optical communication applications.
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Accepted/In Press date: 20 May 2025
e-pub ahead of print date: 20 May 2025
Published date: 22 May 2025
Identifiers
Local EPrints ID: 502926
URI: http://eprints.soton.ac.uk/id/eprint/502926
ISSN: 0925-3467
PURE UUID: b900acf9-06a5-419b-97cd-d6d50596544c
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Date deposited: 14 Jul 2025 16:35
Last modified: 15 Jul 2025 01:41
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Contributors
Author:
Harsh Vaid
Author:
Sharashti Saxena
Author:
Rajveer Dhawan
Author:
Ganapathy Senthil Murugan
Author:
Amol Choudhary
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