Threshold Characteristics of Slow-Light Photonic Crystal Lasers

Abstract

The threshold properties of photonic crystal quantum dot lasers operating in the slow-light regime are investigated experimentally and theoretically. Measurements show that, in contrast to conventional lasers, the threshold gain attains a minimum value for a specific cavity length. The experimental results are explained by an analytical theory for the laser threshold that takes into account the effects of slow-light and random disorder due to unavoidable fabrication imperfections. Longer lasers are found to operate deeper into the slow-light region, leading to a trade-off between slow-light induced reduction of the mirror loss and slow-light enhancement of disorder-induced losses.

5 pages, 7 figures

References in corpus (5)

• Cavity Quantum Electrodynamics with Anderson-localized Modes
• Experimental realization of highly-efficient broadband coupling of single quantum dots to a photonic crystal waveguide
• Slow-light enhanced gain in active photonic crystal waveguides
• Electromagnetic modes of a disordered photonic crystal
• Far-field emission profiles from L3 photonic crystal cavity modes

Cited by in corpus (16)

• Demonstration of a self-pulsing photonic crystal Fano laser
• Maximizing the quality factor to mode volume ratio for ultra-small photonic crystal cavities
• Experimental demonstration of topological slow light waveguides in valley photonic crystals
• Lower bound for the spatial extent of localized modes in photonic-crystal waveguides with small random imperfections
• Electrically-driven Photonic Crystal Lasers with Ultra-low Threshold
• Anderson localization in disordered LN photonic crystal slab cavities
• Experimental Demonstration of Nanolaser with sub-$\mu$A Threshold Current
• Benchmarking five numerical simulation techniques for computing resonance wavelengths and quality factors in photonic crystal membrane line defect cavities
• Implementing structural slow light on short length scales: the photonic speed-bump
• Numerical Investigation of Vertical Cavity Lasers with Subwavelength Gratings Using the Fourier Modal Method
• Experimental realisation of tunable ferroelectric/superconductor (BTO/YBCO)N/STO 1D photonic crystals in the whole visible spectrum
• A Simple Coupled-Bloch-Mode Approach To Study Active Photonic Crystal Waveguides and Lasers
• Soliton pulse propagation in the presence of disorder-induced multiple scattering in photonic crystal waveguides
• Machine learning methods for nanolaser characterization
• Compact High-Q Optical Comb based on a Photonic Harmonic Potential
• Coupled Bloch-Wave Analysis of Active PhC Waveguides and Cavities