Title :
Single-Polarization Cladding-Pumped Optical Amplifier Without Polarization-Maintaining Gain Fiber
Author :
Yarnall, Timothy M. ; Ulmer, Todd G. ; Spellmeyer, Neal W. ; Caplan, David O.
Author_Institution :
Lincoln Lab., Massachusetts Inst. of Technol., Lexington, MA, USA
Abstract :
We demonstrate a single-polarization cladding-pumped Er : Yb optical amplifier using a dual-pass design with a Faraday rotator mirror and nonpolarization-maintaining gain fiber. Over a 25-nm range centered at 1562 nm, the amplifier output exceeds 1 W and maintains a polarization extinction ratio greater than 22 dB. We investigate enhanced relative intensity noise inherent in the dual-pass configuration and discuss scaling to higher powers.
Keywords :
light polarisation; optical fibre amplifiers; optical fibre cladding; Faraday rotator mirror; dual-pass design; nonpolarization-maintaining gain fiber; polarization-maintaining gain fiber; single-polarization cladding-pumped optical amplifier; Dual-clad fiber; optical amplifiers; polarization-maintaining (PM) fiber;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2026584
