Tunable oscillations in optically injected semiconductor lasers with reduced sensitivity to perturbations

Thomas B. Simpson, Jia Ming Liu, Mohammad Almulla, Nicholas G. Usechak, Vassilios Kovanis

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Narrow linewidth optical injection into a semiconductor laser can induce periodic oscillations in the injected laser's output power with a frequency that is widely tunable by simply varying the steady-state bias current and operating temperature. Recently, it has been demonstrated that this oscillation frequency can be made nearly insensitive to small-signal fluctuations of these two parameters at certain operating points [1]. Here, we demonstrate that this insensitivity arises from multiwave mixing and interference that minimizes the response of both the gain medium and the circulating optical power at the oscillation frequency. Both experimental measurements and model calculations of optical spectra show that at the operating points of reduced oscillation frequency sensitivity, all strong components of the optical spectrum still exhibit a response to the perturbations. However, in the power spectra and the (calculated) carrier-density spectra, the response is strongly attenuated. Novel operating points that limit the sensitivity of the laser power oscillation frequency to perturbations offer the promise for improved operation of tunable photonic oscillators for radio- and microwave-frequency applications.

Original languageEnglish
Article number6841598
Pages (from-to)3749-3758
Number of pages10
JournalJournal of Lightwave Technology
Volume32
Issue number20
DOIs
Publication statusPublished - Oct 15 2014
Externally publishedYes

Fingerprint

semiconductor lasers
perturbation
oscillations
sensitivity
optical spectrum
laser outputs
microwave frequencies
operating temperature
power spectra
radio frequencies
oscillators
photonics
injection
interference
lasers
temperature

Keywords

  • Injection Locking
  • RF Oscillators
  • Tunable Oscillators

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Tunable oscillations in optically injected semiconductor lasers with reduced sensitivity to perturbations. / Simpson, Thomas B.; Liu, Jia Ming; Almulla, Mohammad; Usechak, Nicholas G.; Kovanis, Vassilios.

In: Journal of Lightwave Technology, Vol. 32, No. 20, 6841598, 15.10.2014, p. 3749-3758.

Research output: Contribution to journalArticle

Simpson, Thomas B. ; Liu, Jia Ming ; Almulla, Mohammad ; Usechak, Nicholas G. ; Kovanis, Vassilios. / Tunable oscillations in optically injected semiconductor lasers with reduced sensitivity to perturbations. In: Journal of Lightwave Technology. 2014 ; Vol. 32, No. 20. pp. 3749-3758.
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