Single-Frequency 1310-nm AlGaInAs-InP Grating-Outcoupled Surface-Emitting Lasers

Masood, Taha; Patterson, Steve; Amarasinghe, Nuditha Vibhavie; McWilliams, Scott R.; Phan, Duy; Lee, D.; Hilali, Z.A.; Xiong, Zuhong; Evans, G.A.; Butler, J.K.

doi:10.1109/lpt.2004.823708

Cited by 22 publications

(2 citation statements)

References 5 publications

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“…The transmission, reflection, and outcoupled radiation are important properties in the design of second-order gratings for distributed Bragg reflector (DBR) lasers and Grating-Outcoupled Surface-Emitting (GSE) lasers [1,2]. Second-order gratings for DBR lasers are often less expensive or simpler to fabricate than first-order gratings, especially for short wavelength (< 850 nm) laser diodes.…”

Section: Introductionmentioning

confidence: 99%

Transmission, reflection and out-coupling dependence on duty cycle for second order

Sun

Liau

et al. 2009

2009 Conference on Lasers &Amp; Electro Optics &Amp; The Pacific Rim Conference on Lasers and Electro-Optics

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Section: Introductionmentioning

confidence: 99%

Transmission, reflection and out-coupling dependence on duty cycle for second order

Sun

Liau

et al. 2009

2009 Conference on Lasers &Amp; Electro Optics &Amp; The Pacific Rim Conference on Lasers and Electro-Optics

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“…For example, high order FBGs possess a weaker and narrower Bragg resonance. The radiation modes are important in a number of applications including grating-outcoupled surface-emitting laser, laser pumping sensors, and free space communications [183,184]. Researchers have found that radiation power of 0.012 mW from a second-order fiber grating can be emitted to free space through the cladding region (Figure 3.3) [182].…”

Section: 2 Sensing Principle Of High Order Fbgsmentioning

confidence: 99%

Tilted Fiber Bragg Grating Active Heater for Controlled and Localised Hyperthermia

Alqarni¹

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We present data from localized heat inducement studies at both cellular and tissue levels along with a computational model built to predict the temperature increase and damage extent in tissues receiving hyperthermia treatment by a fiber-based active heater. This novel fiber-based active heater serves as a heat source and a temperature sensor. Five important insights are highlighted from this thesis work.First, heat-induced controlled cell deaths were observed experimentally in the three cell lines with MCF-10A being more susceptible to heat compared to HEK 293 and MCF7 cells. Second, comparison between the phantom tissue and ex vivo experimental and computational results shows a lesion size of 5×12 mm and 4.87×11.6 mm in the phantom tissue and 7×15 mm and 8.8×14.3 mm in the ex vivo studies at pumping power of 1.8 W for 10 minutes respectively. Thus, this computational model is able to provide information about the heat transfer characteristics caused by the active heater in living biological tissue.

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Molecular beam epitaxial regrowth on diffraction gratings for vertical-cavity, surface-emitting laser-based integrated optoelectronics

Pickrell¹,

Louderback³

et al. 2004

Journal of Applied Physics

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Epitaxial regrowth techniques, using molecular beam epitaxy, were optimized for the inclusion of submicron diffraction gratings within a vertically resonant structure. Various growth conditions including chemical surface preparation, growth rate, and regrown interfacial structure were studied to determine the quality of the regrown materials and structures. Characteristics such as dislocation density and growth planarity (flatness of the regrown layers) were of particular importance due to the vertical geometry and resonance requirements of the structure. Threading dislocation densities of ≈3×106cm−2 were measured, by means of transmission electron microscopy, in the regrown structures using optimized regrowth processes. Layer thickness variations, due to growth on nonplanar surfaces (diffraction gratings), were characterized using modeling and optical reflectometry. With these results, inclusion of diffraction gratings has been demonstrated with the accurate control over layer thickness needed for use in vertically oriented devices such as vertical-cavity, surface-emitting lasers, and resonant cavity photodetectors.

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Single-Frequency 1310-nm AlGaInAs-InP Grating-Outcoupled Surface-Emitting Lasers

Cited by 22 publications

References 5 publications

Transmission, reflection and out-coupling dependence on duty cycle for second order

Transmission, reflection and out-coupling dependence on duty cycle for second order

Tilted Fiber Bragg Grating Active Heater for Controlled and Localised Hyperthermia

Molecular beam epitaxial regrowth on diffraction gratings for vertical-cavity, surface-emitting laser-based integrated optoelectronics

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