Analysis of nonlinear frequency sweep in high-speed tunable laser sources using a self-homodyne measurement and Hilbert transformation

Tae Jung Ahn, Dug Young Kim

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

We have proposed and demonstrated a novel measurement technique for characterizing nonlinear frequency sweep in high-speed tunable laser sources by using a simple self-homodyne setup and Hilbert transformation. Measurement results, such as the variation in frequency scanning rate during a frequency sweeping process, are presented for a temperature-tuned distributed feedback laser diode and external cavity tunable laser. The time-varying optical phase of the incident light of a laser is calculated from the integration of the instantaneous optical frequency, and the tuning rate is obtained from its derivative.

Original languageEnglish
Pages (from-to)2394-2400
Number of pages7
JournalApplied Optics
Volume46
Issue number13
DOIs
Publication statusPublished - 2007 May 1

Fingerprint

Hilbert transformation
Laser tuning
sweep frequency
tunable lasers
high speed
frequency scanning
Distributed feedback lasers
distributed feedback lasers
Semiconductor lasers
Tuning
semiconductor lasers
tuning
Derivatives
Scanning
cavities
Lasers
lasers
Temperature
temperature

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

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Analysis of nonlinear frequency sweep in high-speed tunable laser sources using a self-homodyne measurement and Hilbert transformation. / Ahn, Tae Jung; Kim, Dug Young.

In: Applied Optics, Vol. 46, No. 13, 01.05.2007, p. 2394-2400.

Research output: Contribution to journalArticle

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