Wideband thulium–holmium-doped fiber source with combined forward and backward amplified spontaneous emission at 1600–2300 nm spectral band

0429822 - ÚFE 2015 RIV US eng J - Journal Article
Honzátko, Pavel - Baravets, Yauhen - Kašík, Ivan - Podrazký, Ondřej
Wideband thulium–holmium-doped fiber source with combined forward and backward amplified spontaneous emission at 1600–2300 nm spectral band.
Optics Letters. Roč. 39, č. 12 (2014), s. 3650-3653. ISSN 0146-9592. E-ISSN 1539-4794
R&D Projects: GA ČR(CZ) GAP205/11/1840
Institutional support: RVO:67985882
Keywords : Bandwidth * Spontaneous emission * Holmium
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering
Impact factor: 3.292, year: 2014

We have experimentally demonstrated two extremely wideband amplified spontaneous emission (ASE) sources. High bandwidth is achieved by combining the backward and forward ASEs generated in thulium-holmium-doped fiber using appropriate wideband couplers. The ASE source optimized for flat spectral power density covers a spectral range from 1527 to 2171 nm at a -10 dB level. The ASE source optimized for spectroscopy features an enhancement with respect to single-mode fiber (SMF) coupled halogen lamps within the spectral range from 1540 nm to more than 2340 nm covering the 800 nm bandwidth
Permanent Link: http://hdl.handle.net/11104/0234850