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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 21, Iss. 2 — Feb. 1, 2003
  • pp: 546–

Brillouin Fiber Laser Pumped by a DFB Laser Diode

Jae Chul Yong, Luc Thévenaz, and Byoung Yoon Kim

Journal of Lightwave Technology, Vol. 21, Issue 2, pp. 546- (2003)


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Abstract

In this paper, we present a novel Brillouin fiber-ring laser utilizing an unbalanced Mach-Zehnder interferometer (UMZI) as coupling device. The laser is pumped by a distributed-feedback laser diode and shows continuous-wave and single-frequency operation. Frequency-dependent transmission characteristics of the UMZI make it possible for the pump wave to pass through the laser-ring cavity with no resonance effect for stable pump operation,while the Brillouin laser signal still resonates in a high-finesse cavity. Single and multiple longitudinal mode operations are observed according to the relative location between longitudinal modes and Brillouin gain-curve center. A stable single-frequency operation is achieved using a simple stabilizing feedback loop based on dithering and autotracking techniques. Using this simple stabilizing feedback loop, the laser-intensity fluctuation is highly suppressed and remains below 4%. The Brillouin output converted from the pump power of 26.4 mW is about 3.18 mW, and the linewidth is measured to be below 1 kHz.

[IEEE ]

Citation
Jae Chul Yong, Luc Thévenaz, and Byoung Yoon Kim, "Brillouin Fiber Laser Pumped by a DFB Laser Diode," J. Lightwave Technol. 21, 546- (2003)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-21-2-546

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