Optical gain in 1.3-μm electrically driven dilute nitride VCSOAs
نویسندگان
چکیده
منابع مشابه
Optical gain in 1.3-μm electrically driven dilute nitride VCSOAs
We report the observation of room-temperature optical gain at 1.3 μm in electrically driven dilute nitride vertical cavity semiconductor optical amplifiers. The gain is calculated with respect to injected power for samples with and without a confinement aperture. At lower injected powers, a gain of almost 10 dB is observed in both samples. At injection powers over 5 nW, the gain is observed to ...
متن کاملGain studies of 1.3-μm dilute nitride HELLISH-VCSOA for optical communications
The hot electron light emitting and lasing in semiconductor heterostructure-vertical-cavity semiconductor optical amplifier (HELLISH-VCSOA) device is based on Ga0.35In0.65 N0.02As0.08/GaAs material for operation in the 1.3-μm window of the optical communications. The device has undoped distributed Bragg reflectors (DBRs). Therefore, problems such as those associated with refractive index contra...
متن کاملDifferential Gain and Linewidth-Enhancement Factor in Dilute-Nitride GaAs-Based 1.3-μm Diode Lasers
The effect of the quantum-well nitride content on the differential gain and linewidth enhancement factor of dilutenitride GaAs-based near 1.3-μm lasers was studied. Gain-guided and ridge waveguide lasers with 0%, 0.5%, and 0.8% nitrogen content InGaAsN quantum wells were characterized. Experiment shows that the linewidth enhancement factor is independent on the nitride content, and is in the ra...
متن کاملElectrically driven optical metamaterials
The advent of metamaterials more than 15 years ago has offered extraordinary new ways of manipulating electromagnetic waves. Yet, progress in this field has been unequal across the electromagnetic spectrum, especially when it comes to finding applications for such artificial media. Optical metamaterials, in particular, are less compatible with active functionalities than their counterparts deve...
متن کاملRobust Control of Electrically Driven Robots in the Task Space
In this paper, a task-space controller for electrically driven robot manipulators is developed using a robust control algorithm. The controller is designed using voltage control strategy. Based on the nominal model of the robotic arm, the desired signals for motor currents are calculated and then the voltage control law is proposed based on the current errors and motor nominal electrical model....
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nanoscale Research Letters
سال: 2014
ISSN: 1556-276X
DOI: 10.1186/1556-276x-9-22