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Ultra-Narrow Bragg Grating for Active Semiconductor Laser Linewidth Reduction through Electrical Feedback

A 15 MHz-wide pi-phase shifted Bragg grating is used in an electronic feedback loop to reduce the linewidth of a DFB semiconductor laser down to 2 kHz.

Marie-Josee Picard | Michel Tetu | Yves Painchaud | Christine Latrasse | Isabelle Alexandre | Jean-François Cliche

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