Rib waveguide dye-doped polymer amplifier with up to 26dB optical gain at 625nm

Reilly, M. A.; Marinelli, C.; Morgan, Christopher J.; Penty, R.V.; White, I.H.; Ramón, Miguel Calvo; Ariu, M.; Xia, Ruidong; Bradley, Donal D. C.

doi:10.1063/1.1828578

Cited by 30 publications

(20 citation statements)

References 11 publications

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“…6 Polymer optical amplifiers have previously been demonstrated, which amplify a single light pulse with repetition rates in the range of hertz to a few kilohertz in solution 7,8 and in the solid state. [9][10][11] Polymer lasers, meanwhile, have recently been demonstrated to be capable of bursts of pulses at repetition frequencies of a few megahertz. 12 However, optical data communications involves streams of light pulses at high repetition rates and a practical amplifier needs to have identical gain for each pulse.…”

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confidence: 99%

Amplification of optical pulse sequences at a high repetition rate in a polymer slab waveguide

Amarasinghe

Ruseckas

Vasdekis

et al. 2007

Applied Physics Letters

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Amplification of three short light pulses in a 140ps time window at 5kHz repetition rate has been demonstrated using a compact amplifier based on the conjugated polymer poly(9,9′-dioctylfluorene-co-benzothiadiazole). The amplifier was optically pumped and gratings were used to couple the signal into and out of the film. A gain of 22dB was observed for a signal pulse temporally aligned with the pump pulse in a 1mm waveguide. For a signal pulse delayed by 140ps, the maximum gain achieved was 14dB. The results are a step towards the use of polymer amplifiers in data communications.

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mentioning

confidence: 99%

Amplification of optical pulse sequences at a high repetition rate in a polymer slab waveguide

Amarasinghe

Ruseckas

Vasdekis

et al. 2007

Applied Physics Letters

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“…Other examples include compounds with a 1,4-diketo-2,3,5,6-tetraphenyl-pyrrolo [3,4-c]pyrrole (DPP) core and 9,9-dialkylfluorene branches 27 and inert polymers with dispersed molecular dyes, for example PMMA/Rhodamine-640 blends. 28,29 Polythiophenes that emit at red wavelengths can be used to make lasers, for example, regiorandom poly(3-hexylthiophene) (RRa-P3HT) and blends with a small fraction of regioregular (RR-) P3HT dispersed in a RRa-P3HT matrix are effective gain media for microring lasers. 30 However, RR-P3HT on its own does not show lasing in the same high-Q resonator configuration, signalling an absence of net optical gain.…”

Section: Introductionmentioning

confidence: 99%

Efficient optical gain media comprising binary blends of poly(3-hexylthiophene) and poly(9,9-dioctylfluorene-co-benzothiadiazole)

Xia

Stavrinou

Bradley

et al. 2012

Journal of Applied Physics

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Articles you may be interested inImprovement in power conversion efficiency by blending of poly(3,4ethylenedioxythiophene):poly(styrenesulfonate) into poly(3-hexylthiophene):phenyl-C61-butyric acid methyl ester active layer Appl. Phys. Lett. 100, 223901 (2012); 10.1063/1.4723571High-efficiency blue multilayer polymer light-emitting diode based on poly(9,9-dioctylfluorene) Efficient blue-green and white light-emitting electrochemical cells based on poly[9,9-bis(3,6-dioxaheptyl)fluorene-2,7-diyl]We report the results of a study of the optical gain properties of binary blend films of regioregular poly(3-hexylthiophene) (RR-P3HT) and poly(9,9-dioctylfluorene-co-benzothiadiazole) (F8BT). Efficient optical gain is observed in the 10-20 wt. % RR-P3HT composition range and can be tuned to the $650 nm window utilised for polymer optical fibre data-communications, with maximum gain $50 cm À1 . At higher P3HT fractions, gain thresholds increase substantially, consistent with the observed concomitant improvement in photocharge generation. Distributed feed back lasers with one-dimensional gratings exhibit pump pulse thresholds as low as 8 nJ (26 lJ cm À2 , 2.17 kW cm À2 ), lower than many other polymer-based gain media in this wavelength range. They also provide relatively high slope efficiencies >2%. The confluence of efficient optical gain with electronic properties that are conducive to charge carrier injection and transport is relatively novel and is expected to be a necessary requirement for the achievement of electrically pumped lasing. V C 2012 American Institute of Physics. [http://dx.

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“…Over the last years, amplified spontaneous emission (ASE) and lasing action have been achieved from organic , inorganic [31][32][33][34][35][36], and organic-inorganic [33,[37][38][39] hybrid thin films and planar waveguides. A large amount of these studies have been carried out with dyes of the rhodamine family, mainly with the well known Rhodamine 6G (Rh6G) dye, and their properties as gain medium in thin films and waveguides have been thoroughly assessed [8][9][10][11][12][14][15][16][31][32][33][34][35]. Over the last decade, laser dyes of the pyrromethene family (4,4-difluor-3a,4a-diaza-4-boro-s-indacene dyes, also known as dipyrromethene.BF 2 (PM) dyes), with emission covering a spectral range wider than that of rhodamines, have become standard laser dyes for emission in the green-yellow to red regions of the spectrum because of their high efficiency and photostability in both liquid and solid gain media [1,40].…”

Section: Introductionmentioning

confidence: 99%

Amplified spontaneous emission and optical gain measurements from pyrromethene 567 �?? doped polymer waveguides and quasi-waveguides

et al. 2008

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Amplified spontaneous emission from planar waveguides and quasi-waveguides based on Pyrromethene 567-doped poly(methyl methacrylate) thin films deposited onto quartz and glass substrates is investigated. Films with different thickness were prepared and pumped optically at 532 nm with pulses of up to 8 MW/cm(2). Pump thresholds for the onset of ASE emission, optical gains and losses were assessed. Net gain coefficients were estimated by fitting the data provided by variable stripe length measurements with a theoretical expression which takes into account saturation. In this way, net gain coefficients of up to 56 +/- 9 cm(-1) at a pump intensity of 5.3 MW/cm(2) for quasi-waveguides and up to 20.6 +/- 2.7 cm(-1) at a pump intensity of 3.4 MW/cm2 for waveguides, were obtained. Loss coefficients in the waveguides were estimated to be 3.8 +/- 0.4 cm-1 and 6.1 +/- 1.3 cm(-1) for 15 microm and 5 microm thick films, respectively. The results obtained seem to indicate a stronger self-mode-restriction capability in the quasiwaveguides than in conventional total internal-reflection waveguides.

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Rib waveguide dye-doped polymer amplifier with up to 26dB optical gain at 625nm

Cited by 30 publications

References 11 publications

Amplification of optical pulse sequences at a high repetition rate in a polymer slab waveguide

Amplification of optical pulse sequences at a high repetition rate in a polymer slab waveguide

Efficient optical gain media comprising binary blends of poly(3-hexylthiophene) and poly(9,9-dioctylfluorene-co-benzothiadiazole)

Amplified spontaneous emission and optical gain measurements from pyrromethene 567 �?? doped polymer waveguides and quasi-waveguides

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