Abstract
Novel techniques to control the effective emission cross section of a rare earth-doped optical fiber with a functional cladding structure are reviewed for applications in active fiber devices. We discuss evanescent wave filtering (EWF) technique based on the overlap in the radiative transition cross sections between the emitting ion in the core and the absorbing ion in the inner cladding. Experimental applications of EWF concept are reviewed for a composite gain medium with the erbium ions in the core and samarium ions in the inner cladding for self-gain flattening in C-band. W-type three layered fiber structure is also analyzed in terms of modal guidance and location of the LP01 mode cut-off. Its application in neodymium and thulium-doped silica fiber laser is discussed to facilitate the radiative transition near 940 and 1600 nm region, respectively. The design concepts, fabrication process, and device performances are discussed for each application.
| Original language | English |
|---|---|
| Pages (from-to) | 297-304 |
| Number of pages | 8 |
| Journal | Optical Fiber Technology |
| Volume | 12 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2006 Oct 1 |
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All Science Journal Classification (ASJC) codes
- Computer Networks and Communications
- Signal Processing
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
Cite this
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Spectral control of optical gain in a rare earth-doped optical fiber using novel triple layered structures. / Oh, Kyunghwan; Yoo, Seongwoo; Ryu, Uh Chan; Kim, Seungtaek; Paek, Un Chul; Soh, Daniel B S; Sahu, Jayanta K.; Nilsson, Johan.
In: Optical Fiber Technology, Vol. 12, No. 4, 01.10.2006, p. 297-304.Research output: Contribution to journal › Article
TY - JOUR
T1 - Spectral control of optical gain in a rare earth-doped optical fiber using novel triple layered structures
AU - Oh, Kyunghwan
AU - Yoo, Seongwoo
AU - Ryu, Uh Chan
AU - Kim, Seungtaek
AU - Paek, Un Chul
AU - Soh, Daniel B S
AU - Sahu, Jayanta K.
AU - Nilsson, Johan
PY - 2006/10/1
Y1 - 2006/10/1
N2 - Novel techniques to control the effective emission cross section of a rare earth-doped optical fiber with a functional cladding structure are reviewed for applications in active fiber devices. We discuss evanescent wave filtering (EWF) technique based on the overlap in the radiative transition cross sections between the emitting ion in the core and the absorbing ion in the inner cladding. Experimental applications of EWF concept are reviewed for a composite gain medium with the erbium ions in the core and samarium ions in the inner cladding for self-gain flattening in C-band. W-type three layered fiber structure is also analyzed in terms of modal guidance and location of the LP01 mode cut-off. Its application in neodymium and thulium-doped silica fiber laser is discussed to facilitate the radiative transition near 940 and 1600 nm region, respectively. The design concepts, fabrication process, and device performances are discussed for each application.
AB - Novel techniques to control the effective emission cross section of a rare earth-doped optical fiber with a functional cladding structure are reviewed for applications in active fiber devices. We discuss evanescent wave filtering (EWF) technique based on the overlap in the radiative transition cross sections between the emitting ion in the core and the absorbing ion in the inner cladding. Experimental applications of EWF concept are reviewed for a composite gain medium with the erbium ions in the core and samarium ions in the inner cladding for self-gain flattening in C-band. W-type three layered fiber structure is also analyzed in terms of modal guidance and location of the LP01 mode cut-off. Its application in neodymium and thulium-doped silica fiber laser is discussed to facilitate the radiative transition near 940 and 1600 nm region, respectively. The design concepts, fabrication process, and device performances are discussed for each application.
UR - http://www.scopus.com/inward/record.url?scp=33748438662&partnerID=8YFLogxK
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U2 - 10.1016/j.yofte.2006.03.005
DO - 10.1016/j.yofte.2006.03.005
M3 - Article
VL - 12
SP - 297
EP - 304
JO - Optical Fiber Technology
JF - Optical Fiber Technology
SN - 1068-5200
IS - 4
ER -