Multigigahertz bandwidth FM response of frequency tunable two-electrode DFB lasers

A. E. Willner, M. Kuznetsov, I. P. Kaminow, U. Koren, Thomas L Koch, C. A. Burrus, G. Raybon

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The FM response of frequency-tunable two-electrode distributed-feedback (DFB) lasers operating at 1.35 μm is discussed. Under certain bias conditions, an FM response of ~1 GHz/mA is flat over a range of modulating frequencies from 10 kHz to several hundred megahertz. This region is followed by a shallow dip and a high-frequency relaxation resonance peak, allowing an overall 3-dB FM bandwidth of ~5 GHz. This is believe to be the widest FM bandwidth reported to date for such lasers; however, variations of the phase of the FM response could limit the useful bandwidth in a frequency-shift keying (FSK) system. The experimental response is a function of static tuning conditions, with significant differences between regions of red and blue frequency shift with increasing current. The observed behavior is well represented by theoretical curves derived from a small-signal analysis.

Original languageEnglish (US)
Pages (from-to)360-363
Number of pages4
JournalIEEE Photonics Technology Letters
Volume1
Issue number11
DOIs
StatePublished - Nov 1989
Externally publishedYes

Fingerprint

Distributed feedback lasers
distributed feedback lasers
frequency modulation
bandwidth
Bandwidth
Electrodes
electrodes
Frequency shift keying
Signal analysis
frequency shift keying
Tuning
signal analysis
Lasers
frequency shift
tuning
curves
lasers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)
  • Atomic and Molecular Physics, and Optics

Cite this

Willner, A. E., Kuznetsov, M., Kaminow, I. P., Koren, U., Koch, T. L., Burrus, C. A., & Raybon, G. (1989). Multigigahertz bandwidth FM response of frequency tunable two-electrode DFB lasers. IEEE Photonics Technology Letters, 1(11), 360-363. https://doi.org/10.1109/68.43376

Multigigahertz bandwidth FM response of frequency tunable two-electrode DFB lasers. / Willner, A. E.; Kuznetsov, M.; Kaminow, I. P.; Koren, U.; Koch, Thomas L; Burrus, C. A.; Raybon, G.

In: IEEE Photonics Technology Letters, Vol. 1, No. 11, 11.1989, p. 360-363.

Research output: Contribution to journalArticle

Willner, AE, Kuznetsov, M, Kaminow, IP, Koren, U, Koch, TL, Burrus, CA & Raybon, G 1989, 'Multigigahertz bandwidth FM response of frequency tunable two-electrode DFB lasers', IEEE Photonics Technology Letters, vol. 1, no. 11, pp. 360-363. https://doi.org/10.1109/68.43376
Willner, A. E. ; Kuznetsov, M. ; Kaminow, I. P. ; Koren, U. ; Koch, Thomas L ; Burrus, C. A. ; Raybon, G. / Multigigahertz bandwidth FM response of frequency tunable two-electrode DFB lasers. In: IEEE Photonics Technology Letters. 1989 ; Vol. 1, No. 11. pp. 360-363.
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