Title :
A novel design for dispersion compensating photonic crystal fiber Raman amplifier
Author :
Varshney, Shailendra K. ; Saitoh, Kunimasa ; Koshiba, Masanori
Author_Institution :
Graduate Sch. of Inf. Sci. & Technol., Hokkaido Univ., Sapporo, Japan
Abstract :
This letter presents a novel design for dispersion compensating photonic crystal fiber (DCPCF) which shows inherently flattened high Raman gain of 19 dB (±1.2-dB gain ripple) over 30-nm bandwidth. The proposed design module has been simulated through an efficient full-vectorial finite element method. The designed DCPCF has a high negative dispersion coefficient (-200 to -250 ps/nm/km) over C-band wavelength (1530-1568 nm). The proposed fiber module of 5.2-km length not only compensates the accumulated dispersion in conventional single-mode fiber (SMF-28) but also compensates for the dispersion slope. Hence, the designed DCPCF module acts as the gain-flattened Raman amplifier and dispersion compensator.
Keywords :
Raman lasers; compensation; finite element analysis; optical design techniques; optical fibre amplifiers; optical fibre dispersion; photonic crystals; 1530 to 1568 nm; 19 dB; 5.2 km; C-band wavelength; Raman amplifier; Raman gain; dispersion compensator; dispersion slope; fiber module; full-vectorial finite element method; gain-flattened amplifier; negative dispersion coefficient; photonic crystal fiber amplifier; photonic crystal fiber design; single-mode fiber; Bandwidth; Design methodology; Erbium-doped fiber amplifier; Finite element methods; Frequency; Gain; Optical fiber communication; Photonic crystal fibers; Stimulated emission; US Department of Transportation; Dispersion compensation; Raman amplification; finite element method; photonic crystal fiber (PCF);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.854395
