Photoluminescence of semiconductor nanocrystal quantum dots at 1550 nm wavelength in the core of photonic bandgap fiber

Kawanishi, S.; Komukai, T.; Ohmori, Masato; Sakaki, H.

doi:10.1109/cleo.2007.4453012

Cited by 13 publications

(9 citation statements)

References 7 publications

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“…For example, PbSe QDs were doped into silica optical fibers by using modified chemical vapor deposition (MCVD) technology, and an amplified spontaneous emission at 1537 nm has been achieved [12]. By filling the PbSe QD solution into a photonic bandgap fiber, PL at 1554 nm has been observed [13]. In addition, Cheng et al realized a multiQD-doped fiber amplifier that used nanocrystals of different sizes [14].…”

Section: Introductionmentioning

confidence: 98%

Enhanced thermal stability of oleic-acid-capped PbS quantum dot optical fiber amplifier

Sun¹,

Dai²,

Chen³

et al. 2014

Opt. Express

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Poor thermal stability has remained a severe obstacle for practical applications of optical fiber amplifiers based on quantum dots (QDs). We demonstrate that thermal stability at elevated temperatures can be achieved by using oleic-acid-capped QDs. Optical fiber amplifiers using oleic-acid-capped QDs for the gain medium exhibited stable gain of more than 5 dB at 1550 nm between 25 °C and 50 °C that did not degrade upon cooling. In contrast, fiber amplifiers employing oleylamine-capped QDs exhibited reduced gain when heated and subsequently cooled.

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Section: Introductionmentioning

confidence: 98%

Enhanced thermal stability of oleic-acid-capped PbS quantum dot optical fiber amplifier

Sun¹,

Dai²,

Chen³

et al. 2014

Opt. Express

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“…Most works on QDFAs are focused on narrow bandgap IV-VI QDs [12][13][14][15] , especially PbS QDs because it can provide luminescence over the whole transmission window (1200~1600 nm) of silica optical fibers [13] . Ali Hreibi proposed a liquid-core fiber incorporating PbSe QDs with a stable spontaneous emission centered at 1220 nm (FWHM 120 nm) by using a pump power as low as 5 mW [14] .…”

Section: Introductionmentioning

confidence: 99%

Ultra-broadband multi-sized PbS quantum dots fiber amplifier based on a symmetric fiber coupler

et al. 2013

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We proposed an ultra-broadband multi-sized PbS quantum dots(QDs) fiber amplifier based on a symmetric fused tapered coupler. The 2x2 tapered fiber coupler was coated with a mixture of PbS QDs in two different sizes. By using the multisized PbS QDs as the gain medium, a maximum bandwidth of 400 nm (1200~1600 nm) has been achieved under evanescent wave excitation. In addition, with a 70 mW of 980 nm pump, we obtained a small signal gain of greater than 14 dB in this region.

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“…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%

“…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

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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.

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Photoluminescence of semiconductor nanocrystal quantum dots at 1550 nm wavelength in the core of photonic bandgap fiber

Cited by 13 publications

References 7 publications

Enhanced thermal stability of oleic-acid-capped PbS quantum dot optical fiber amplifier

Enhanced thermal stability of oleic-acid-capped PbS quantum dot optical fiber amplifier

Ultra-broadband multi-sized PbS quantum dots fiber amplifier based on a symmetric fiber coupler

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

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