Fabrication and characterization of evanescent wave coupled PbS quantum dots fiber amplifier based on sol-gel method

Yan, Jiwen; Pang, Fufei; Chen, Zhenyi

doi:10.1117/12.804070

Cited by 3 publications

(1 citation statement)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The quantum confinement effects, associated with the nanometric size, give rise to a number of important and interesting optical and electronic properties that have been exploited for photonic applications, including optical amplifiers, lasers, sensors and solar cells [4][5][6][7][8][9]. In the last few years, lasers and optical fiber amplifiers working in the 1.5 µm optical communication window were produced by putting together planar waveguides, fiber couplers or photonic crystals and either PbS or PbSe QDs [10][11][12][13][14][15][16][17]. More recently, devices based in the integration of QDs and photonic crystal fibers (PCFs) were obtained as active optical sources due to their long optical paths and strong light-material interactions [8,13].…”

Section: Introductionmentioning

confidence: 99%

Luminescence of PbS quantum dots spread on the core surface of a silica microstructured optical fiber

Chillcce

Ramos-Gonzales

Cordeiro

et al. 2010

Journal of Non-Crystalline Solids

View full text Add to dashboard Cite

a b s t r a c tThe broadband luminescence spectra, in the region from around 1000 to 1650 nm, of lead sulphide (PbS) quantum dots (QDs) spread onto the dual core surfaces of silica microstructured optical fibers (MOFs) (core diameters of ∼ 2.5 and ∼ 5.0 µm) are reported. For this purpose, colloidal solutions of PbS QDs of different sizes with luminescence bands around 877 (PbS877), 1160 (PbS1160), and 1474 nm (PbS1474) were injected and then spread onto the dual core surfaces of silica MOFs using a nitrogen gas pressure system. The PbS QDs were excited (via evanescent field effect) by the light of a continuum wave semiconductor laser or a Ti:sapphire laser (at 785 nm) guided through the MOF cores. As an important result, blue-shift and the band broadening behaviors in the luminescence spectra of these PbS QDs were observed.

show abstract