Strong Optical Filed Intensity Improvement Introducing InGaAsP Quantum Wells in InP Nanocavity

Electro-absorptive properties of interdiffused InGaAsP/InP quantum wells

Improved optical filter responses in cascaded InGaAsP/InP microdisk resonators

Waveguide-coupled microdisk and microring resonators as optical filters have been of great interest due to their high wavelength selectivity and ultra-compact sizes [1 – 4]. Recently, higher-order filters based on microring resonators with improved performances have been demonstrated in compound glass and AlGaAs/GaAs material systems [3, 4]. These higher-order filters show steeper rolloffs and ...

InGaAsP/InP Nanocavity for Single-Photon Source at 1.55-μm Telecommunication Band

A new structure of 1.55-μm pillar cavity is proposed. Consisting of InP-air-aperture and InGaAsP layers, this cavity can be fabricated by using a monolithic process, which was difficult for previous 1.55-μm pillar cavities. Owing to the air apertures and tapered distributed Bragg reflectors, such a pillar cavity with nanometer-scaled diameters can give a quality factor of 104-105 at 1.55 μm. Ca...

A Monolithic MQW InP–InGaAsP-Based Optical Comb Generator

We report the first demonstration of a monolithic optical-frequency comb generator. The device is based on multisection quaternary/quaternary eight-quantum-well InP–InGaAsP material in a frequency-modulated (FM) laser design. The modulation is generated using quantum-confined Stark-effect phase-induced refractive index modulation to achieve fast modulation up to 24.4 GHz. The laser was fabricat...

Quantum-dot InAs/InGaAsP/InP (100) twin-stripe lasers

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Hyper Raman Scattering in Microcavity Quantum Wells: A Quantum Optical Process in the Strong Coupling Regime

We analyze the hyper Raman scattering process in a quantum well grown inside a semiconductor microcavity and present a microscopic calculation of emission spectra as a function of excitation energy, detuning, and angles. The exciton±photon coupling is treated non-perturbatively to include polariton effects and the Coulomb interaction between electrons is treated beyond the mean field approximat...