Akca, Electro-optic and electro-absorption characterization of InAs quantum dot waveguides , Opt. Layout of EA Modulator In order to visualize the signals, we need to place probes on the desired ports. After saving the project, in the Analysis tab, choose Setup. Retrieved from ” https: Figure 2 shows the setup.

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For full-text searches, use our search page. JETP 6, Compared with electro-optic modulatorselectroabsorption modulators can operate with much lower voltages a few volts instead of hundreds of thousands of volts.

Electroabsorption Modulators

The values for this voltage source is entered in as a series of time-voltage pair Ti,Vi separated by space. If you like this article, share it with your friends and colleagues, e. Probes are located in the Probe library. For modulators in telecommunications, small size and modulation voltages are desired. They can be operated at very high speed; a modulation bandwidth of tens of gigahertz can be achieved, which makes these devices useful for optical fiber communications.

CW signal and EA Modulator output. JETP 6, [2] W.

In this example we do Transient analysis for 20 ns with 0. Most EAMs are made in the form of a waveguide with electrodes for applying an electric field in a direction perpendicular to the modulated light beam. Analysis setup of EA Modulator In order to visualize the signal on the probes, first we run the Analysis, then we open Modulatro to use the visualizers.

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Compared with direct modulation of the laser diodea higher bandwidth and reduced chirp can be obtained.

In order to visualize the signal on the probes, first we run the Analysis, then we open OptiSystem to use the visualizers.

Electroabsorption Modulator

Evaluations Get access to all our software tools instantly! Sorry, we don’t have an article for that keyword! A convenient feature is that an electroabsorption modulator can be integrated with a distributed feedback laser diode on a single chip to form a data transmitter in mofulator form of a photonic integrated circuit. Recently, advances in crystal growth have triggered the study of self organized quantum dots.

In order to visualize the signals, we need to place probes on the desired ports. For achieving a high extinction ratio, one usually exploits the Quantum-confined Stark effect QCSE in a quantum well structure.

Modulatlr of EA Modulator In order to visualize the signals, we need to place probes on the desired ports.

A convenient feature is that an EAM can be integrated with distributed feedback laser diode on a single chip to form a data transmitter in the form of a photonic integrated circuit. Eqm achieving a high extinction ratio, one usually exploits the quantum-confined Stark effect in a quantum well structure. Vpwl is a voltage source that generates piece-wise linear waveform in transient analysis. An electro-absorption modulator EAM is a moduator device which can be used for modulating the intensity of a laser beam via an electric voltage.

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Its principle of operation is based on the Franz-Keldysh effecti. By using this site, you agree to the Terms of Use and Privacy Policy.

Electro-absorption modulator

This quantum coherence may yield new applications for quantum well modulators in optical communications. RP Services and Tools. The Vpulse generates a pulse with 2 ns duration, 0. Following figure shows the electrical drive signal, input to the EA modualtor, and in Figure 4 is the CW source signal and EA modulxtor output after modulation. Akca, Electro-optic and electro-absorption characterization of InAs quantum dot waveguidesOpt. Compared with direct modulation of the laser diode, a higher bandwidth and reduced chirp can be obtained.

Electrical diriving signal of EA Modulator.