All-optical switching in a dye-doped polymer fiber Fabry–Perot waveguide

Welker, David J.; Kuzyk, Mark G.

doi:10.1063/1.117449

Cited by 27 publications

(13 citation statements)

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“…Various fabrication techniques such as electro‐spinning deposition, direct drawing, as well as vapor deposition polymerization have been developed to realize microfibers with high optical quality . Meanwhile, abundant practical applications have been demonstrated by employing the polymer microfibers as light‐emitting sources, lasers, sensitive sensors, full‐color displays, all‐optical switches, logical inverters and multiplexers, etc . However, studies of the lasing properties of the microfibers were mostly based on Fabry–Perot cavities, which introduce low Q factors due to the low reflectivity of the reflectors.…”

Section: Fabrication Methodologiesmentioning

confidence: 99%

Advances and Prospects for Whispering Gallery Mode Microcavities

Yang

Wang

Sun

2015

Advanced Optical Materials

298

183

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Microlasers have experienced tremendous development in the past decade and become an essential part in laser evolution, as miniature lasers provide strong optical confinement and feature greatly enhanced light–matter interactions. Among all the configurations, whispering gallery mode (WGM) microcavities and microlasers exhibit outstanding optical performances with high quality factors and small mode volumes, thus ensuring low lasing thresholds. In addition, some unique properties inherent to WGM cavities, like bi‐directional propagation and an evanescent field that spans several hundred nanometers across the boundary, can be exploited for novel applications. Therefore, designing and engineering innovative WGM microcavities and microlasers has attracted increasing research interest. The fundamentals and characteristics of WGM are introduced here, and then the developments and current status of WGM microcavities and microlasers are reviewed in terms of the evolution of fabrication techniques and built‐up materials. In particular, the melting of glassy materials in early studies, top‐down and bottom‐up approaches with semiconductors, coating structures, as well as flexible, soft microresonators in recent years are presented. Finally, the application prospects of microlasers including the wavelength manipulation, sensing and microresonator coupling, are discussed.

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Section: Fabrication Methodologiesmentioning

confidence: 99%

Advances and Prospects for Whispering Gallery Mode Microcavities

Yang

Wang

Sun

2015

Advanced Optical Materials

298

183

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“…Many mechanisms of intensity dependent length change have already been discussed. [7,8] Using the photothermal mechanism, [9] several devices have been demonstrated including a tunable optical filter, [10] an all-optical vibration suppressor [11,12] and a mesoscale version of such a device that exhibits both mechanical and optical multistability. [13] In this paper, we show that differential expansion can be used to make an all-optical cantilever in a dye-doped polymer optical fiber, and we study its mechanisms through modelling and experiment.…”

Section: Introductionmentioning

confidence: 99%

Optically activated cantilever using photomechanical effects in dye-doped polymer fibers

2006

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We report on what we believe is the first demonstration of an optically activated cantilever due to photomechanical effects in a dye-doped polymer optical fiber. The fiber is observed to bend when light is launched off-axis. The displacement angle monotonically increases as a function of the distance between the illumination point and the fiber axis, and is consistent with differential light-induced length changes. The photothermal and photo-reorientation mechanisms, each with its own distinct response time, are proposed to explain the observed time dependence. The measured degree of bending is consistent with a model that we have proposed which includes coupling between photoisomerization and heating. Most importantly, we have discovered that at high light intensity, a cooperative release of stress results in cis-to-trans isomerization that yields a large and abrupt length change.

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“…Since then a number of solid organic and inorganic polymeric matrices have been described [19,20]. However, the use of poly(methyl methacrylate) (PMMA) host presents additional advantages as these materials show a much better compatibility with organic laser dyes and are amenable to inexpensive fabrication techniques which combined with their light weight would facilitate miniaturization and the design of integrated optical systems [21][22][23][24]. Optical media used for our present study are chemically stabilized Rhodamine 6G doped PMMA, due to its best optical transparency and resistance to laser damage [25][26][27].…”

Section: Methodsmentioning

confidence: 99%