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Multiwavelength mode-locked SOA fiber laser operating at 16 ch × 10 GHz

F. WANG1,* , X. ZHANG2, X. HUANG2, ZHENG ZHANG2

Affiliation

  1. Schools of Mathematics and Physics, Chongqing Institute of Technology, Chongqing 400050, P. R. China
  2. Wuhan National Laboratory for Optoelectronics & School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China

Abstract

We present a multiwavelength mode-locked fiber ring laser incorporating two semiconductor optical amplifiers (SOAs) and a segment of dispersion-compensating fiber (DCF). One SOA is modulated by an injected external optical signal act as loss modulator and assistant gain medium. The other SOA is not modulated by injected signal and services in main gain medium. Two SOAs synchronously provide cavity gain for high repetition rate multiwavelength oscillation. A segment of commercial DCF is employed to introduce intracavity dispersion and functions as a self-tuned comb filter. Our laser source can generate 16 synchronized wavelength channels, and each channel is mode-locked at 10 GHz. 16 wavelengths from 1581.96 to 1597.52 nm are with a power deviation of about 4 dB and average width of mode-locked pulses is 39 ps. Oscillation wavelengths can be smoothly tuned and the output power are rather stable.

Keywords

Multiwavelength, Mode-locked fiber laser, Semiconductor optical amplifier (SOA), Dispersion-compensating fiber (DCF).

Citation

F. WANG, X. ZHANG, X. HUANG, ZHENG ZHANG, Multiwavelength mode-locked SOA fiber laser operating at 16 ch × 10 GHz, Optoelectronics and Advanced Materials - Rapid Communications, 3, 4, April 2009, pp.305-308 (2009).

Submitted at: March 9, 2009

Accepted at: April 23, 2009