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Updated: Jun 15, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Broadband optical serrodyne frequency shifting.

D M S Johnson¹, J M Hogan, S-w Chiow

¹Department of Physics, Stanford University, Stanford, California 94305, USA. david.m.johnson@stanford.edu

|March 3, 2010

Summary

This summary is machine-generated.

This study demonstrates efficient serrodyne frequency shifting of light using a nonlinear transmission line to generate sawtooth waveforms. The technique achieves a wide tuning range, offering a simple and robust solution for optical frequency control.

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Last Updated: Jun 15, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Quasi-light Storage for Optical Data Packets

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Area of Science:

Photonics and Optical Engineering
Nonlinear Optics
Signal Processing

Background:

Serrodyne frequency shifting is crucial for various optical applications.
Existing methods often face limitations in tuning range, efficiency, or complexity.
High-fidelity, high-frequency waveform generation is key to advanced optical modulation.

Purpose of the Study:

To demonstrate a novel method for serrodyne frequency shifting using a passively generated sawtooth waveform.
To achieve a wide and continuous tuning range for optical frequency shifts.
To evaluate the efficiency and robustness of the proposed technique compared to existing technologies.

Main Methods:

Utilizing an electro-optic phase modulator driven by a sawtooth waveform.
Passively generating the high-frequency sawtooth waveform with a commercial nonlinear transmission line.
Implementing a push-pull configuration with two phase modulators for bidirectional tuning.

Main Results:

Achieved serrodyne frequency shifting of light from 200 MHz to 1.2 GHz with over 60% efficiency.
Demonstrated continuous tuning from -1.6 GHz to +1.6 GHz using the push-pull configuration.
The technique proved simple, robust, and offered a large tuning range.

Conclusions:

The demonstrated serrodyne frequency shifting technique provides an efficient and wide-tuning-range solution.
Passive generation of high-fidelity sawtooth waveforms simplifies the system.
This method presents a significant advancement for optical frequency manipulation in the target band.