Broad spectral sliced multiwavelength source with a mode locked fiber laser
Document Type
Article
Publication Date
1-1-2012
Abstract
A simple multi-wavelength source is demonstrated based on spectral slicing of supercontinuum (SC) light using a Sagnac loop mirror. A mode locked fiber laser with pulse width of 800 fs is employed to generate the SC in photonic crystal fiber (PCF). The SC light extending from 1200 nm up to the wavelength region above 1750 nm is obtained at the amplified pulse pump power of 30 dBm. By slicing the SC with a loop mirror, a multiwavelength comb spectrum is obtained with different channel spacing for different operating wavelength region. Spacings of 1.5, 2.3, and 2.9 nm are shown at wavelength regions of 1220, 1450, and 1730 nm, respectively. It is also observed that the signal to noise ratio (SNR) increases from 15 to 20 dB as the operating wavelength increases from 1220 to 1730 nm region.
Keywords
Fiber lasers, Nonlinear optics, Photonic crystal fibers, Signal to noise ratio
Divisions
fac_eng,PHYSICS
Publication Title
Laser Physics
Volume
22
Issue
1
Publisher
IOP Publishing