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Ring cavity Erbium- Ytterbium Co-Doped Fiber lasers / Maizatul Waheda Abdul Rahman
Published 2006“…An 8-meter length of erbium-ytterbium co-doped fiber (EYDF), which pumped from 980nm laser diode, was used as a gain medium in the building of a fiber laser using ring cavity configuration in different ratio of optical coupler. …”
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Student Project -
444
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445
Electrically driven lasing in metal halide perovskites: Challenges and outlook
Published 2020-03-01“…This report will explore the causes underlying these observations—specifically, Joule heating, electric field-induced quenching, charge injection imbalance, and Auger recombination—and consider approaches to achieve an electrically driven perovskite laser diode.…”
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Article -
446
An Efficient and Compact Difference-Frequency-Generation Spectrometer and Its Application to 12CH3D/12CH4 Isotope Ratio Measurements
Published 2010-07-01“…We have developed an efficient and compact 3.4 μm difference-frequency-generation spectrometer using a 1.55 μm distributed feedback (DFB) laser diode, a 1.06 μm DFB laser diode, and a ridge-waveguide periodically poled lithium niobate. …”
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Article -
447
A Compact Avalanche-Transistor-Based Pulse Generator for Transcranial Infrared Light Stimulation (TILS) Experiments
Published 2022-06-01“…A pulse generator using an avalanche transistor operating in current-mode second breakdown driving a 780 nm laser diode is reported. The laser diode is mounted on the skull of a mouse and used in transcranial infrared light stimulation (TILS) experiments. …”
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Article -
448
L-band Raman lasing in chalcogenide glass microresonator started by thermal mode pulling with auxiliary red diode laser
Published 2021-05-01“…We attain single-mode Raman lasing at 1620 nm in As2S3 glass MR using a C-band pump laser at 1530 nm and a red laser diode at 650 nm.…”
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Article -
449
Intravascular papillary endothelial hyperplasia: a case report
Published 2019-01-01“…Surgical excision with a laser diode was performed under local anesthesia. The postoperative follow-up was simple. …”
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Article -
450
LabVIEW programming for the control of a light system
Published 2011“…QCL is a distinctive and unique semiconductor laser diode as it is unipolar which only requires electron to operate. …”
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Final Year Project (FYP) -
451
Optical chimera in light polarization
Published 2019-05-01“…Interestingly, the chimeras reported here originate from the inherent coherent properties of a commercial laser diode. The spatial and temporal properties of the chimeras found in light polarization are controlled by the laser diode and feedback parameters, leading, e.g., to multistability between chimeras with multiple heads and to turbulent chimeras.…”
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Article -
452
Application of WGM Resonances to the Measurement of the Temperature Increment of Ho and Ho-Yb Doped Optical Fibers Pumped at 1125 and 975 nm
Published 2021-03-01“…Our results demonstrate that pumping ytterbium-holmium codoped fibers at 975 nm results in dramatic thermal effects, producing a temperature increment two orders higher than that observed in holmium doped fibers pumped with a 1125 nm laser diode.…”
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Article -
453
Low-cost electronic circuitry for photoacoustic gas sensing
Published 2022-04-01“…The performance of the circuitry was demonstrated by the photoacoustic detection of NO2 using a laser diode with a wavelength of 450 nm.…”
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Article -
454
Superconducting gravimeters based on advanced nanomaterials and quantum neural network
Published 2022-10-01“…A Michelson-type interferometer with a laser diode and a single-mode optical fiber was used to measure the test body's displacements. …”
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Article -
455
A Novel Method for Quadrature Signal Construction in a Semiconductor Self-Mixing Interferometry System Using a Liquid Crystal Phase Shifter
Published 2023-10-01“…We have established a novel method for quadrature signal construction in a semiconductor laser diode self-mixing interferometry system using two photodiodes and a beam splitter with a liquid crystal phase shifter (LCPS). …”
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Article -
456
Experimental study of thermoelectric cooler for diode pumped solid state laser
Published 2006“…It is used to control and stabilize the temperature of pumping source of laser diode (ld) and the frequency doubled of kalium titanyl phosphate (ktp) crystal. …”
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Article -
457
Active alignment and reliable pigtailing if laser of diode transmitter
Published 2008“…In this paper we present theoretical and experimental analyses on Nd: YAG laser microwelding for pigtailing laser diode transmitter through two ball lenses that are employed for effectively matching the elliptical mode field of the laser diode with the circular on of the single mode fiber. …”
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Article -
458
Research on the method of designing cap lens using ant colony algorithm
Published 2021-08-01“…Abstract It is necessary to select the appropriate parameters defining a aspheric lens for coupling the light from a laser diode into the optical fiber by cap aspheric lenses. …”
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Article -
459
Noise Suppression on the Tunable Laser for Precise Cavity Length Displacement Measurement
Published 2016-09-01“…The absolute distance between the mirrors of a Fabry-Perot cavity with a spacer from an ultra low expansion material was measured by an ultra wide tunable laser diode. The DFB laser diode working at 1542 nm with 1.5 MHz linewidth and 2 nm tuning range has been suppressed with an unbalanced heterodyne fiber interferometer. …”
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460
Portable photoacoustic system for noninvasive blood temperature measurement
Published 2020“…In the future, such developed photoacoustic temperature sensing device can potentially become a wearable patch sensor with further miniaturization of laser diode and use of MEMS-based piezoelectric micro-machined ultrasonic transducers (PMUT).…”
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Conference Paper