We propose a method of suppressing the relative intensity noise caused by polarization-dependent gain that is inherent to Raman polarizers (RPs). This method involves bit-synchronously scrambling the state of polarization of a pulse (bit) before the pulse enters the RP. The proposed solution works for RPs operating in a depleted regime and is compatible with multichannel configurations.
© 2012 Optical Society of America
Original Manuscript: November 21, 2011
Revised Manuscript: March 1, 2012
Manuscript Accepted: March 6, 2012
Published: May 30, 2012
Victor V. Kozlov, Javier Nuño, Juan Diego Ania-Castañón, and Stefan Wabnitz, "Multichannel Raman polarizer with suppressed relative intensity noise for wavelength division multiplexing transmission lines," Opt. Lett. 37, 2073-2075 (2012)