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Related Experiment Video

Updated: May 24, 2026

Quasi-light Storage for Optical Data Packets

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Energy consumption in optical modulators for interconnects.

David A B Miller¹

¹Ginzton Laboratory, Stanford University, 348 Via Pueblo Mall, Stanford, California 94305-4088, USA. dabm@ee.stanford.edu

|March 16, 2012

Summary

This summary is machine-generated.

We analyzed energy consumption in optical modulators for low-power applications. Thin depletion region modulators operating at small bias may offer energy savings, outperforming even ideal loss-less modulators.

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Area of Science:

Photonics
Electrical Engineering
Materials Science

Background:

Optical modulators are key components in low-power interconnects.
Understanding energy consumption is crucial for efficient device design.

Purpose of the Study:

To analyze energy consumption in optical modulators under depletion operation.
To investigate the impact of dynamic dissipation and photocurrent on net energy consumption.

Main Methods:

Analysis of dynamic dissipation from charging modulator capacitance.
Derivation of expressions for photocurrent effects on energy consumption (reverse and forward bias).
Evaluation of energy penalties in electroabsorption modulators.

Main Results:

Dynamic dissipation can be bias-independent with specific circuits.
Photocurrent energy penalties are significant at large reverse bias.
Thin depletion region modulators at small bias show minimal photocurrent penalty.

Conclusions:

Optical modulators with thin depletion regions and small bias operation can minimize energy loss.
These modulators may achieve higher energy efficiency than ideal loss-less devices.
Optimized modulator design is critical for energy-efficient optical interconnects.