Back to Search
Start Over
Broadband 1.5-2.1 µm emission in gallo-germanate dual-core optical fiber co-doped with Er 3+ and Yb 3+ /Tm 3+ /Ho 3 .
- Source :
-
Optics express [Opt Express] 2023 Aug 28; Vol. 31 (18), pp. 28850-28858. - Publication Year :
- 2023
-
Abstract
- The near-infrared emission in fabricated low-phonon energy, gallo-germanate glass, and double-core optical fiber has been investigated. Broadband amplified spontaneous emission (ASE) was obtained in optical fiber with cores doped with: 1 <superscript>st</superscript> - 0.2Er <subscript>2</subscript> O <subscript>3</subscript> and 2 <superscript>nd</superscript> - 0.5Yb <subscript>2</subscript> O <subscript>3</subscript> /0.4Tm <subscript>2</subscript> O <subscript>3</subscript> /0.05Ho <subscript>2</subscript> O <subscript>3</subscript> as a result of the superposition of emission bands from both cores corresponding to the Er <superscript>3+</superscript> : <superscript>4</superscript> I <subscript>13/2</subscript> → <superscript>4</superscript> I <subscript>15/2</subscript> (1 <superscript>st</superscript> core) and Tm <superscript>3+</superscript> : <superscript>3</superscript> F <subscript>4</subscript> → <superscript>3</superscript> H <subscript>6</subscript> /Ho <superscript>3+</superscript> : <superscript>5</superscript> I <subscript>7</subscript> → <superscript>5</superscript> I <subscript>8</subscript> (2 <superscript>nd</superscript> core) transitions. The effect of fiber length and pump wavelength on the near-infrared amplified spontaneous emission (ASE) properties has been analyzed for 1 m and 5 m optical fiber. The widest emission bandwidth (355 nm - 3 dB level) was obtained for a 5 m length optical fiber pumped by a 940 nm laser.
Details
- Language :
- English
- ISSN :
- 1094-4087
- Volume :
- 31
- Issue :
- 18
- Database :
- MEDLINE
- Journal :
- Optics express
- Publication Type :
- Academic Journal
- Accession number :
- 37710695
- Full Text :
- https://doi.org/10.1364/OE.496574