Results 11 to 20 of about 4,199 (174)
Semiconductor Optical Amplifier Pattern Effect Suppression Using a Birefringent Fiber Loop [PDF]
IEEE Photonics Technology Letters, 2010 The capability of a birefringent fiber loop to suppress the pattern effect in a semiconductor optical amplifier is experimentally demonstrated. The results verify that compared to direct signal amplification this scheme achieves reduced amplitude modulation, enhanced eye diagram extinction ratio, pulse reshaping, tolerance to long string of spaces, low
Zoiros, Kyriakos E. +2 more
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Recent Advances in High-Birefringence Fiber Loop Mirror Sensors [PDF]
Sensors, 2007 Recent advances in devices and applications of high-birefringence fiber loopmirror sensors are addressed. In optical sensing, these devices may be used as strain andtemperature sensors, in a separate or in a simultaneous measurement. Other describedapplications include: refractive index measurement, optical filters for interrogate gratingsstructures ...
José L. Santos +2 more
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FIBER LOOP MIRROR FILTER WITH TWO-STAGE HIGH BIREFRINGENCE FIBERS [PDF]
Progress In Electromagnetics Research C, 2009 A flber loop mirror (FLM) with two-stage high birefrin- gence (Hi-Bi) flbers is theoretically and experimentally studied for var- ious rotation angles and Hi-Bi flber lengths. The experimental spectra are observed to be in good agreement with the theoretical spectra, ver- ifying our theoretical model.
Kok Sing Lim +4 more
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High-birefringence fiber loop mirror sensor using a WDM fused fiber coupler
Optics Letters, 2013 An intensity-based highly birefringent (Hi-Bi) fiber loop mirror (FLM) sensor is proposed which uses a wavelength-division multiplexing (WDM) fiber coupler. The effect of integrating the WDM coupler in a FLM configuration is first studied. A section of Hi-Bi (bow-tie) fiber of length 0.26 m is then placed in the fiber loop, making the spectral response
D J, Passos +2 more
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High-Birefringent Fiber Loop Mirror Sensors: New Developments [PDF]
, 2012 The fiber loop mirror based on a ring configuration is one of the devices in optical fibers most used in communications and sensors (Mortimore, 1988). The device is formed when the two output ports of a directional coupler are spliced. In this configuration, the two waves at the coupler outputs travel in opposite directions but following the same ...
Ferreira, Marta S. +2 more
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A High-Birefringence Microfiber Sagnac-Interferometer Biosensor Based on the Vernier Effect
Sensors, 2018 We propose a high-sensitive Sagnac-interferometer biosensor based on theVernier effect (VE) with a high-birefringence microfiber. The sensitivity enhancement is achieved by utilizing two cascaded Sagnac interferometers.
Xue-Zhou Wang, Qi Wang
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Polarization properties of interferometrically interrogated fiber Bragg grating and tandem-interferometer strain sensors [PDF]
, 2006 Lead sensitivity in low-coherence interferometric fiber-optic sensors is a well-known problem. It can lead to a severe degradation in the sensor resolution and accuracy through its effect on the fringe visibility and interferometric phase.
Cranch, G A +2 more
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AIP Advances, 2014 We employ a birefringent fiber loop (BFL) for enhancing the performance of a semiconductor optical amplifier (SOA) which is directly modulated. By properly exploiting the BFL comb-like spectral response, we show that the SOA can be directly modulated at ...
K. E. Zoiros, P. Morel
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Temperature-independent torsion sensor based on “figure-of-eight” fiber loop mirror [PDF]
, 2012 An interrogation sensor system combining the “figure-of-eight” fiber loop mirror using a single directional 3×3 fiber optic coupler was proposed. One fiber loop mirror was formed by inserting a length of high birefringent optical fiber at the input ports
Frazão, Orlando +2 more
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Scientific Reports, 2017 Continuous wavelength tuning of optical comb filters, which is an essential functionality for flexible signal processing in reconfigurable optical systems, has been challenging in high order filter structures with two birefringent elements (BEs) or more ...
Jaehoon Jung, Yong Wook Lee
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