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Related Experiment Video

Updated: May 14, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Frequency-locked multicarrier generator based on a complementary frequency shifter with double recirculating

Jianping Li¹, Zhaohui Li

¹Institute of Photonics Technology, Jinan University, Guangzhou, China.

|February 6, 2013

Summary

A new method generates hundreds of frequency-locked carriers using a complementary frequency shifter (CFS) with recirculating loops. This technique offers stable multicarrier generation for diverse applications.

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Area of Science:

Optical Engineering
Signal Processing

Background:

Multicarrier generation is crucial for modern communication systems.
Existing methods face challenges in achieving high carrier counts and frequency stability.

Purpose of the Study:

To propose and theoretically analyze a novel scheme for generating frequency-locked multicarriers.
To investigate the performance of the complementary frequency shifter (CFS) based multicarrier generator (CMCG).

Main Methods:

Theoretical analysis of the transfer function and output properties of the proposed CMCG.
Utilizing double recirculating frequency-shifting loops within the CFS.

Main Results:

Successfully derived the transfer function and output characteristics of the CMCG.
Achieved 100 frequency-locked carriers with acceptable flatness.
Demonstrated performance under both perfect and imperfect operating conditions.

Conclusions:

The proposed CMCG scheme effectively generates a large number of frequency-locked carriers.
The method is robust and suitable for various applications requiring stable multicarrier signals.