Wideband spectral compression of wavelength-tunable ultrashort soliton pulse using comb-profile fiber.
We demonstrated spectral compression of ultrashort soliton pulses in a wide wavelength region based on an adiabatic soliton spectral compression technique using a comb-profile fiber. The comb-profile fiber was carefully designed using numerical analysis and fabricated using a conventional single-mode fiber and a dispersion-shifted fiber. The spectral width of a 200 fs soliton pulse was compressed from 12 to 15 nm to 0.54-0.71 nm in the wavelength region 1620-1850 nm, giving a spectral compression factor of up to 19.8-25.9. Owing to the soliton effect, the side lobe level was suppressed to -19.2 to -9.7 dB.
Nishizawa
N
N
Division of Advanced Science and Biotechnology, Osaka University, Suita, Osaka 565-0871, Japan. nishizawa@mls.eng.osaka-u.ac.jp
Takahashi
K
K
Ozeki
Y
Y
Itoh
K
K
D017076:Computer-Aided Design; D044962:Data Compression / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D008027:Light; D012542:Scattering, Radiation; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*