All fiber passively mode locked zirconium-based erbium-doped fiber laser
Document Type
Article
Publication Date
1-1-2012
Abstract
All passively mode locked erbium-doped fiber laser with a zirconium host is demonstrated. The fiber laser utilizes the Non-Linear Polarization Rotation (NPR) technique with an inexpensive fiber-based Polarization Beam Splitter (PBS) as the mode-locking element. A 2 m crystalline ZirconiaYttriaAlumino-silicate fiber doped with erbium ions (ZrYAl-EDF) acts as the gain medium and generates an Amplified Spontaneous Emission (ASE) spectrum from 1500 nm to 1650 nm. The generated mode-locked pulses have a spectrum ranging from 1548 nm to more than 1605 nm, as well as a 3-dB bandwidth of 12 nm. The mode-locked pulse train has an average output power level of 17 mW with a calculated peak power of 1.24 kW and energy per pulse of approximately 730 pJ. The spectrum also exhibits a Signal-to-Noise Ratio (SNR) of 50 dB as well as a repetition rate of 23.2 MHz. The system is very stable and shows little power fluctuation, in addition to being repeatable.
Keywords
Zirconium-erbium doped fiber laser, Mode-locking, Non-Linear Polarization Rotation technique
Divisions
fac_eng,PHYSICS
Publication Title
Optics & Laser Technology
Volume
44
Issue
3
Publisher
Elsevier