A Multiwavelength Low-Power Wavelength-Locked Slotted Fabry–Pérot Laser Source for WDM Applications

Abstract

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> Wavelength-locking of a multiwavelength stabilized slotted Fabry–Pérot (SFP) laser to a single-mode laser source is experimentally demonstrated. The SFP resonates at channels spaced by <emphasis><formula formulatype="inline"> <tex>$\sim$</tex></formula></emphasis>8 nm between 1510 and 1565 nm over a wide range of temperatures and drive currents. Under low-power (<emphasis><formula formulatype="inline"><tex>$&lt;-$</tex></formula></emphasis>20 dBm) external optical injection, wavelength-locking with a sidemode suppression ratio (SMSR) <emphasis><formula formulatype="inline"><tex>$&gt;$</tex></formula></emphasis>25 dB is achieved. A locking width of <emphasis><formula formulatype="inline"><tex>$&gt;$</tex> </formula></emphasis>25 GHz and SMSR <emphasis><formula formulatype="inline"> <tex>$&gt;$</tex></formula></emphasis>30 dB can be achieved for each locked wavelength channel at injection power <emphasis><formula formulatype="inline"><tex>$&gt;-$</tex> </formula></emphasis>16 dBm. </para>