Analysis of grating-coupled radiation in GaAs:GaAlAs lasers and waveguides - I

Streifer, W.; Scifres, D. R.; Burnham, R. D.

doi:10.1109/jqe.1976.1069175

Cited by 154 publications

(35 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For a given device with a corrugation only on one side of the active material, like our DFB laser fabricated through nanograting transfer, the decrease in threshold fluence with increased pump spot size can be explained via coupled-wave theory [23][24][25][26]. For a tooth-shaped onedimensional grating one obtains the coupled-wave equations…”

Section: Discussionmentioning

confidence: 99%

Pump spot size dependent lasing threshold in organic semiconductor DFB lasers fabricated via nanograting transfer

Liu¹,

Klinkhammer²,

Wang³

et al. 2013

Opt. Express

View full text Add to dashboard Cite

Optically excited organic semiconductor distributed feedback (DFB) lasers enable efficient lasing in the visible spectrum. Here, we report on the rapid and parallel fabrication of DFB lasers via transferring a nanograting structure from a flexible mold onto an unstructured film of the organic gain material. This geometrically well-defined structure allows for a systematic investigation of the laser threshold behavior. The laser thresholds for these devices show a strong dependence on the pump spot diameter. This experimental finding is in good qualitative agreement with calculations based on coupled-wave theory. With further investigations on various DFB laser geometries prepared by different routes and based on different organic gain materials, we found that these findings are quite general. This is important for the comparison of threshold values of various devices characterized under different excitation areas. Weimann, J. Wang, and P. Hinze, "Laser threshold reduction in an all-spiro guest-host system," Appl. Phys. Lett. 85(10), 1659-1661 (2004). 14. X. Liu, S. Klinkhammer, K. Sudau, N. Mechau, C. Vannahme, J. Kaschke, T. Mappes, M. Wegener, and U.Lemmer, "Ink-jet-printed organic semiconductor distributed feedback laser," Appl. Phys. Express 5(7), 072101

show abstract

Section: Discussionmentioning

confidence: 99%

Pump spot size dependent lasing threshold in organic semiconductor DFB lasers fabricated via nanograting transfer

Liu¹,

Klinkhammer²,

Wang³

et al. 2013

Opt. Express

View full text Add to dashboard Cite

show abstract

“…These analyses use somewhat different approaches [64] - [70] . The theoretical approach closest to the spirit of this paper is that using the formalism of Floquet modes best exemplified by [69], [70].…”

Section: Grating Couplersmentioning

confidence: 99%

Periodic structures for integrated optics

Yariv

Nakamura

1977

IEEE J. Quantum Electron.

326

102

View full text Add to dashboard Cite

“…Equation (1) can also be derived by treating the grating as a perturbation of the waveguide and calculating the coupling coefficient between the waveguide mode and a plane wave radiating with angle θ q . The coupling strength scales with the fill factor a as sin(πa) and depends linearly on the etch depth b [12]. For efficient coupling to a fiber, the grating should be designed such that only one coupling order (q = 1) is allowed, and the coupling strength should be designed between strong upwards coupling and low backwards reflections.…”

Section: Theorymentioning

confidence: 99%

Optimized 3-D Simulation Method for Modeling Out-of-Plane Radiation in Silicon Photonic Integrated Circuits

Westerveld

Urbach

Yousefi

2011

IEEE J. Quantum Electron.

View full text Add to dashboard Cite

Abstract-We present an accurate and fast 3D simulation scheme for out-of-plane grating couplers, based on two dimensional rigorous (finite difference time domain) grating simulations, the effective index method (EIM), and the RayleighSommerfeld diffraction formula. In comparison with full 3D FDTD simulations, the rms difference in electric field is below 5% and the difference in power flux is below 3%. A grating coupler for coupling from a silicon-on-insulator photonic integrated circuit to an optical fiber positioned 0.1 mm above the circuit is designed as example.

show abstract

Analysis of grating-coupled radiation in GaAs:GaAlAs lasers and waveguides - I

Cited by 154 publications

References 6 publications

Pump spot size dependent lasing threshold in organic semiconductor DFB lasers fabricated via nanograting transfer

Pump spot size dependent lasing threshold in organic semiconductor DFB lasers fabricated via nanograting transfer

Periodic structures for integrated optics

Optimized 3-D Simulation Method for Modeling Out-of-Plane Radiation in Silicon Photonic Integrated Circuits

Contact Info

Product

Resources

About